./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx --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 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:58:13,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:58:13,895 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 20:58:13,902 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:58:13,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:58:13,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:58:13,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:58:13,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:58:13,933 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:58:13,933 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:58:13,934 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:58:13,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:58:13,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:58:13,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:58:13,937 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:58:13,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:58:13,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:58:13,939 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 20:58:13,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:58:13,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 20:58:13,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:58:13,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:58:13,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:58:13,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:58:13,944 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 20:58:13,944 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 20:58:13,945 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 20:58:13,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:58:13,946 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:58:13,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:58:13,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:58:13,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:58:13,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:58:13,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:58:13,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:58:13,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:58:13,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:58:13,951 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:58:13,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:58:13,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:58:13,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:58:13,953 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:58:13,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:58:13,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:58:13,954 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_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 [2023-11-21 20:58:14,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:58:14,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:58:14,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:58:14,332 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:58:14,333 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:58:14,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2023-11-21 20:58:17,511 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:58:17,871 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:58:17,872 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2023-11-21 20:58:17,896 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/data/b75251311/97399b7031034901a6bca767d521cfdc/FLAGcf35fb67d [2023-11-21 20:58:17,914 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/data/b75251311/97399b7031034901a6bca767d521cfdc [2023-11-21 20:58:17,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:58:17,919 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:58:17,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:58:17,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:58:17,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:58:17,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:17,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d45fdd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:17, skipping insertion in model container [2023-11-21 20:58:17,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:58:17" (1/1) ... [2023-11-21 20:58:17,990 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:58:18,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:58:18,318 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:58:18,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:58:18,406 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:58:18,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18 WrapperNode [2023-11-21 20:58:18,407 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:58:18,408 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:58:18,408 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:58:18,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:58:18,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (1/1) ... [2023-11-21 20:58:18,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (1/1) ... [2023-11-21 20:58:18,458 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 165 [2023-11-21 20:58:18,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:58:18,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:58:18,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:58:18,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:58:18,472 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (1/1) ... [2023-11-21 20:58:18,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (1/1) ... [2023-11-21 20:58:18,485 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (1/1) ... [2023-11-21 20:58:18,505 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 20:58:18,512 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (1/1) ... [2023-11-21 20:58:18,512 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (1/1) ... [2023-11-21 20:58:18,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (1/1) ... [2023-11-21 20:58:18,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (1/1) ... [2023-11-21 20:58:18,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (1/1) ... [2023-11-21 20:58:18,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (1/1) ... [2023-11-21 20:58:18,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:58:18,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:58:18,567 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:58:18,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:58:18,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (1/1) ... [2023-11-21 20:58:18,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:58:18,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:18,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:18,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:58:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:58:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 20:58:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-11-21 20:58:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-11-21 20:58:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:58:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:58:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 20:58:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 20:58:18,825 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:58:18,828 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:58:19,396 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:58:19,619 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:58:19,619 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 20:58:19,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:58:19 BoogieIcfgContainer [2023-11-21 20:58:19,622 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:58:19,630 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:58:19,630 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:58:19,636 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:58:19,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:58:17" (1/3) ... [2023-11-21 20:58:19,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20babf10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:58:19, skipping insertion in model container [2023-11-21 20:58:19,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:18" (2/3) ... [2023-11-21 20:58:19,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20babf10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:58:19, skipping insertion in model container [2023-11-21 20:58:19,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:58:19" (3/3) ... [2023-11-21 20:58:19,643 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2023-11-21 20:58:19,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:58:19,673 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-21 20:58:19,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:58:19,743 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;@328c96f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:58:19,744 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-21 20:58:19,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 64 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 20:58:19,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 20:58:19,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:19,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:19,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:19,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:19,766 INFO L85 PathProgramCache]: Analyzing trace with hash -691019163, now seen corresponding path program 1 times [2023-11-21 20:58:19,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:19,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985031669] [2023-11-21 20:58:19,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:19,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:19,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:19,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985031669] [2023-11-21 20:58:19,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985031669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:19,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:19,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:58:19,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36591978] [2023-11-21 20:58:19,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:19,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 20:58:19,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:20,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 20:58:20,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 20:58:20,031 INFO L87 Difference]: Start difference. First operand has 71 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 64 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-21 20:58:20,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:20,098 INFO L93 Difference]: Finished difference Result 136 states and 177 transitions. [2023-11-21 20:58:20,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 20:58:20,101 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 8 [2023-11-21 20:58:20,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:20,111 INFO L225 Difference]: With dead ends: 136 [2023-11-21 20:58:20,111 INFO L226 Difference]: Without dead ends: 60 [2023-11-21 20:58:20,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 20:58:20,120 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:20,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 20:58:20,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-21 20:58:20,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-21 20:58:20,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 54 states have internal predecessors, (61), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:20,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2023-11-21 20:58:20,176 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 8 [2023-11-21 20:58:20,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:20,177 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2023-11-21 20:58:20,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-21 20:58:20,177 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2023-11-21 20:58:20,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 20:58:20,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:20,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:20,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 20:58:20,180 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:20,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:20,181 INFO L85 PathProgramCache]: Analyzing trace with hash -692199326, now seen corresponding path program 1 times [2023-11-21 20:58:20,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:20,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678892928] [2023-11-21 20:58:20,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:20,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:20,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:20,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:20,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678892928] [2023-11-21 20:58:20,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678892928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:20,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:20,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 20:58:20,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610242652] [2023-11-21 20:58:20,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:20,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:58:20,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:20,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:58:20,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:58:20,290 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-21 20:58:20,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:20,455 INFO L93 Difference]: Finished difference Result 156 states and 190 transitions. [2023-11-21 20:58:20,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:58:20,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 8 [2023-11-21 20:58:20,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:20,459 INFO L225 Difference]: With dead ends: 156 [2023-11-21 20:58:20,460 INFO L226 Difference]: Without dead ends: 98 [2023-11-21 20:58:20,461 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 [2023-11-21 20:58:20,463 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 55 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:20,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 148 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:20,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-21 20:58:20,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 90. [2023-11-21 20:58:20,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 83 states have internal predecessors, (103), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 111 transitions. [2023-11-21 20:58:20,481 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 111 transitions. Word has length 8 [2023-11-21 20:58:20,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:20,482 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 111 transitions. [2023-11-21 20:58:20,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-21 20:58:20,483 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 111 transitions. [2023-11-21 20:58:20,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 20:58:20,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:20,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:20,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 20:58:20,485 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:20,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:20,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1974609431, now seen corresponding path program 1 times [2023-11-21 20:58:20,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:20,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641087637] [2023-11-21 20:58:20,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:20,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:20,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:20,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:20,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641087637] [2023-11-21 20:58:20,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641087637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:20,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:20,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 20:58:20,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462474812] [2023-11-21 20:58:20,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:20,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 20:58:20,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:20,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 20:58:20,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:58:20,665 INFO L87 Difference]: Start difference. First operand 90 states and 111 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-21 20:58:20,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:20,824 INFO L93 Difference]: Finished difference Result 197 states and 244 transitions. [2023-11-21 20:58:20,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 20:58:20,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 12 [2023-11-21 20:58:20,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:20,827 INFO L225 Difference]: With dead ends: 197 [2023-11-21 20:58:20,827 INFO L226 Difference]: Without dead ends: 109 [2023-11-21 20:58:20,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-21 20:58:20,830 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 92 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:20,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 156 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:20,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-21 20:58:20,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 96. [2023-11-21 20:58:20,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 76 states have (on average 1.4342105263157894) internal successors, (109), 89 states have internal predecessors, (109), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:20,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2023-11-21 20:58:20,848 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 12 [2023-11-21 20:58:20,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:20,849 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2023-11-21 20:58:20,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-21 20:58:20,849 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2023-11-21 20:58:20,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 20:58:20,850 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:20,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:20,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 20:58:20,851 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:20,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:20,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1083350105, now seen corresponding path program 1 times [2023-11-21 20:58:20,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:20,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633248914] [2023-11-21 20:58:20,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:20,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:20,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:20,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633248914] [2023-11-21 20:58:20,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633248914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:20,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:20,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 20:58:20,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001356915] [2023-11-21 20:58:20,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:20,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 20:58:20,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:20,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 20:58:20,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:58:20,947 INFO L87 Difference]: Start difference. First operand 96 states and 117 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-11-21 20:58:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:21,114 INFO L93 Difference]: Finished difference Result 111 states and 130 transitions. [2023-11-21 20:58:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 20:58:21,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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 13 [2023-11-21 20:58:21,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:21,117 INFO L225 Difference]: With dead ends: 111 [2023-11-21 20:58:21,117 INFO L226 Difference]: Without dead ends: 109 [2023-11-21 20:58:21,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-21 20:58:21,120 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 65 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:21,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 197 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:21,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-21 20:58:21,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 96. [2023-11-21 20:58:21,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 89 states have internal predecessors, (108), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:21,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 116 transitions. [2023-11-21 20:58:21,136 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 116 transitions. Word has length 13 [2023-11-21 20:58:21,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:21,137 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 116 transitions. [2023-11-21 20:58:21,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-11-21 20:58:21,137 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 116 transitions. [2023-11-21 20:58:21,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 20:58:21,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:21,139 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:21,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 20:58:21,140 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:21,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:21,141 INFO L85 PathProgramCache]: Analyzing trace with hash -573400435, now seen corresponding path program 1 times [2023-11-21 20:58:21,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:21,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433175288] [2023-11-21 20:58:21,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:21,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:21,182 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 20:58:21,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:21,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433175288] [2023-11-21 20:58:21,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433175288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:21,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:21,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:58:21,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815759310] [2023-11-21 20:58:21,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:21,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:58:21,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:21,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:58:21,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:58:21,186 INFO L87 Difference]: Start difference. First operand 96 states and 116 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) [2023-11-21 20:58:21,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:21,242 INFO L93 Difference]: Finished difference Result 100 states and 122 transitions. [2023-11-21 20:58:21,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:58:21,242 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 15 [2023-11-21 20:58:21,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:21,244 INFO L225 Difference]: With dead ends: 100 [2023-11-21 20:58:21,244 INFO L226 Difference]: Without dead ends: 99 [2023-11-21 20:58:21,245 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 [2023-11-21 20:58:21,246 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 2 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:21,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 110 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 20:58:21,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-21 20:58:21,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2023-11-21 20:58:21,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 86 states have internal predecessors, (104), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 112 transitions. [2023-11-21 20:58:21,273 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 112 transitions. Word has length 15 [2023-11-21 20:58:21,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:21,274 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 112 transitions. [2023-11-21 20:58:21,274 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) [2023-11-21 20:58:21,274 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 112 transitions. [2023-11-21 20:58:21,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 20:58:21,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:21,276 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:21,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 20:58:21,276 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:21,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:21,277 INFO L85 PathProgramCache]: Analyzing trace with hash -573106722, now seen corresponding path program 1 times [2023-11-21 20:58:21,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:21,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139306937] [2023-11-21 20:58:21,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:21,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:21,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:21,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:21,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139306937] [2023-11-21 20:58:21,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139306937] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:21,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936295545] [2023-11-21 20:58:21,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:21,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:21,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:21,464 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:21,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 20:58:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:21,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 20:58:21,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:21,675 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:58:21,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936295545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:21,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 20:58:21,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-21 20:58:21,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971033501] [2023-11-21 20:58:21,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:21,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:58:21,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:21,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:58:21,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 20:58:21,678 INFO L87 Difference]: Start difference. First operand 93 states and 112 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) [2023-11-21 20:58:21,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:21,769 INFO L93 Difference]: Finished difference Result 108 states and 134 transitions. [2023-11-21 20:58:21,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:58:21,770 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 [2023-11-21 20:58:21,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:21,773 INFO L225 Difference]: With dead ends: 108 [2023-11-21 20:58:21,773 INFO L226 Difference]: Without dead ends: 107 [2023-11-21 20:58:21,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 20:58:21,785 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 6 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:21,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 170 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:21,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-21 20:58:21,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 95. [2023-11-21 20:58:21,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 88 states have internal predecessors, (107), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:21,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 115 transitions. [2023-11-21 20:58:21,806 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 115 transitions. Word has length 15 [2023-11-21 20:58:21,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:21,814 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 115 transitions. [2023-11-21 20:58:21,814 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) [2023-11-21 20:58:21,814 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 115 transitions. [2023-11-21 20:58:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 20:58:21,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:21,816 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:21,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-21 20:58:22,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-21 20:58:22,017 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:22,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:22,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1529451917, now seen corresponding path program 1 times [2023-11-21 20:58:22,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:22,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824272953] [2023-11-21 20:58:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:22,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,096 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 20:58:22,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:22,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824272953] [2023-11-21 20:58:22,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824272953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:22,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:22,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 20:58:22,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978721007] [2023-11-21 20:58:22,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:22,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:58:22,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:22,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:58:22,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:58:22,098 INFO L87 Difference]: Start difference. First operand 95 states and 115 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-21 20:58:22,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:22,163 INFO L93 Difference]: Finished difference Result 112 states and 138 transitions. [2023-11-21 20:58:22,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:58:22,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 [2023-11-21 20:58:22,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:22,165 INFO L225 Difference]: With dead ends: 112 [2023-11-21 20:58:22,166 INFO L226 Difference]: Without dead ends: 110 [2023-11-21 20:58:22,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:58:22,167 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 8 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:22,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 157 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:22,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-21 20:58:22,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 93. [2023-11-21 20:58:22,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 86 states have internal predecessors, (103), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2023-11-21 20:58:22,179 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 17 [2023-11-21 20:58:22,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:22,179 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2023-11-21 20:58:22,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-21 20:58:22,179 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2023-11-21 20:58:22,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 20:58:22,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:22,181 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:22,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 20:58:22,181 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:22,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:22,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1028036507, now seen corresponding path program 1 times [2023-11-21 20:58:22,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:22,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810951376] [2023-11-21 20:58:22,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:22,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,284 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 20:58:22,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:22,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810951376] [2023-11-21 20:58:22,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810951376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:22,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:22,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 20:58:22,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357227394] [2023-11-21 20:58:22,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:22,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 20:58:22,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:22,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 20:58:22,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:58:22,288 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-21 20:58:22,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:22,391 INFO L93 Difference]: Finished difference Result 134 states and 162 transitions. [2023-11-21 20:58:22,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 20:58:22,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 21 [2023-11-21 20:58:22,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:22,394 INFO L225 Difference]: With dead ends: 134 [2023-11-21 20:58:22,394 INFO L226 Difference]: Without dead ends: 132 [2023-11-21 20:58:22,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 20:58:22,396 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 79 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:22,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 155 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-21 20:58:22,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 116. [2023-11-21 20:58:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 108 states have internal predecessors, (134), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:22,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 142 transitions. [2023-11-21 20:58:22,408 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 142 transitions. Word has length 21 [2023-11-21 20:58:22,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:22,408 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 142 transitions. [2023-11-21 20:58:22,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-21 20:58:22,409 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 142 transitions. [2023-11-21 20:58:22,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 20:58:22,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:22,410 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:22,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 20:58:22,411 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:22,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:22,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1056663863, now seen corresponding path program 1 times [2023-11-21 20:58:22,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:22,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190807867] [2023-11-21 20:58:22,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:22,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 20:58:22,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:22,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190807867] [2023-11-21 20:58:22,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190807867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:22,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:22,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 20:58:22,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534580549] [2023-11-21 20:58:22,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:22,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 20:58:22,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:22,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 20:58:22,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:58:22,479 INFO L87 Difference]: Start difference. First operand 116 states and 142 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-21 20:58:22,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:22,590 INFO L93 Difference]: Finished difference Result 128 states and 154 transitions. [2023-11-21 20:58:22,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 20:58:22,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 21 [2023-11-21 20:58:22,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:22,592 INFO L225 Difference]: With dead ends: 128 [2023-11-21 20:58:22,592 INFO L226 Difference]: Without dead ends: 126 [2023-11-21 20:58:22,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 20:58:22,594 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 78 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:22,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 157 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:22,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-21 20:58:22,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 111. [2023-11-21 20:58:22,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 103 states have internal predecessors, (126), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:22,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 134 transitions. [2023-11-21 20:58:22,604 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 134 transitions. Word has length 21 [2023-11-21 20:58:22,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:22,605 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 134 transitions. [2023-11-21 20:58:22,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-21 20:58:22,605 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 134 transitions. [2023-11-21 20:58:22,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 20:58:22,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:22,607 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:22,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 20:58:22,607 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:22,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:22,608 INFO L85 PathProgramCache]: Analyzing trace with hash 747156731, now seen corresponding path program 1 times [2023-11-21 20:58:22,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:22,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835341010] [2023-11-21 20:58:22,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:22,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 20:58:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 20:58:22,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:22,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835341010] [2023-11-21 20:58:22,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835341010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:22,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:22,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 20:58:22,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272460668] [2023-11-21 20:58:22,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:22,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 20:58:22,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:22,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 20:58:22,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:58:22,680 INFO L87 Difference]: Start difference. First operand 111 states and 134 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 20:58:22,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:22,782 INFO L93 Difference]: Finished difference Result 123 states and 149 transitions. [2023-11-21 20:58:22,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 20:58:22,783 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-11-21 20:58:22,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:22,788 INFO L225 Difference]: With dead ends: 123 [2023-11-21 20:58:22,788 INFO L226 Difference]: Without dead ends: 121 [2023-11-21 20:58:22,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 20:58:22,789 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 77 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:22,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 148 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:22,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-21 20:58:22,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 107. [2023-11-21 20:58:22,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 99 states have internal predecessors, (121), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:22,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 129 transitions. [2023-11-21 20:58:22,804 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 129 transitions. Word has length 27 [2023-11-21 20:58:22,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:22,805 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 129 transitions. [2023-11-21 20:58:22,805 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 20:58:22,806 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 129 transitions. [2023-11-21 20:58:22,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 20:58:22,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:22,807 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:22,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 20:58:22,807 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:22,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:22,808 INFO L85 PathProgramCache]: Analyzing trace with hash 718529375, now seen corresponding path program 1 times [2023-11-21 20:58:22,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:22,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960173123] [2023-11-21 20:58:22,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:22,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 20:58:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:22,942 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 20:58:22,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:22,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960173123] [2023-11-21 20:58:22,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960173123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:22,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:22,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 20:58:22,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93109923] [2023-11-21 20:58:22,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:22,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 20:58:22,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:22,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 20:58:22,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:58:22,947 INFO L87 Difference]: Start difference. First operand 107 states and 129 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 20:58:23,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:23,085 INFO L93 Difference]: Finished difference Result 117 states and 141 transitions. [2023-11-21 20:58:23,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 20:58:23,086 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-11-21 20:58:23,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:23,090 INFO L225 Difference]: With dead ends: 117 [2023-11-21 20:58:23,090 INFO L226 Difference]: Without dead ends: 115 [2023-11-21 20:58:23,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 20:58:23,092 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 76 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:23,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 148 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:23,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-21 20:58:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 100. [2023-11-21 20:58:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 85 states have (on average 1.3294117647058823) internal successors, (113), 92 states have internal predecessors, (113), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:23,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 121 transitions. [2023-11-21 20:58:23,117 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 121 transitions. Word has length 27 [2023-11-21 20:58:23,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:23,119 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 121 transitions. [2023-11-21 20:58:23,119 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 20:58:23,120 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 121 transitions. [2023-11-21 20:58:23,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 20:58:23,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:23,124 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:23,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 20:58:23,125 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:23,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:23,126 INFO L85 PathProgramCache]: Analyzing trace with hash -294220449, now seen corresponding path program 1 times [2023-11-21 20:58:23,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:23,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700691682] [2023-11-21 20:58:23,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:23,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:23,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:23,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:23,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 20:58:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:23,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 20:58:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:23,316 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 20:58:23,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:23,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700691682] [2023-11-21 20:58:23,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700691682] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:23,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862136199] [2023-11-21 20:58:23,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:23,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:23,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:23,319 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:23,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 20:58:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:23,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 20:58:23,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 20:58:23,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:58:23,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862136199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:23,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 20:58:23,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-21 20:58:23,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4619001] [2023-11-21 20:58:23,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:23,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:58:23,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:23,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:58:23,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 20:58:23,432 INFO L87 Difference]: Start difference. First operand 100 states and 121 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 20:58:23,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:23,531 INFO L93 Difference]: Finished difference Result 233 states and 282 transitions. [2023-11-21 20:58:23,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 20:58:23,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 31 [2023-11-21 20:58:23,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:23,533 INFO L225 Difference]: With dead ends: 233 [2023-11-21 20:58:23,533 INFO L226 Difference]: Without dead ends: 135 [2023-11-21 20:58:23,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 20:58:23,535 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 18 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:23,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 123 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:23,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-21 20:58:23,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 104. [2023-11-21 20:58:23,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 95 states have internal predecessors, (116), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:23,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2023-11-21 20:58:23,546 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 31 [2023-11-21 20:58:23,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:23,546 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2023-11-21 20:58:23,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 20:58:23,546 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2023-11-21 20:58:23,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-21 20:58:23,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:23,547 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-21 20:58:23,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:23,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:23,771 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:23,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:23,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1956412857, now seen corresponding path program 1 times [2023-11-21 20:58:23,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:23,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816337220] [2023-11-21 20:58:23,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:23,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:23,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:23,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:24,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 20:58:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:24,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 20:58:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:24,061 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 20:58:24,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:24,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816337220] [2023-11-21 20:58:24,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816337220] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:24,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867510843] [2023-11-21 20:58:24,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:24,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:24,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:24,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:24,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 20:58:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:24,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-21 20:58:24,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:24,329 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-21 20:58:24,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:58:24,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867510843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:24,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 20:58:24,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2023-11-21 20:58:24,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73824669] [2023-11-21 20:58:24,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:24,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 20:58:24,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:24,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 20:58:24,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-21 20:58:24,337 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 20:58:24,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:24,455 INFO L93 Difference]: Finished difference Result 168 states and 190 transitions. [2023-11-21 20:58:24,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 20:58:24,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2023-11-21 20:58:24,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:24,459 INFO L225 Difference]: With dead ends: 168 [2023-11-21 20:58:24,459 INFO L226 Difference]: Without dead ends: 140 [2023-11-21 20:58:24,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-11-21 20:58:24,461 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 30 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:24,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 347 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:24,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-21 20:58:24,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 110. [2023-11-21 20:58:24,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 91 states have (on average 1.3076923076923077) internal successors, (119), 100 states have internal predecessors, (119), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-21 20:58:24,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 131 transitions. [2023-11-21 20:58:24,479 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 131 transitions. Word has length 37 [2023-11-21 20:58:24,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:24,481 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 131 transitions. [2023-11-21 20:58:24,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 20:58:24,482 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 131 transitions. [2023-11-21 20:58:24,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 20:58:24,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:24,483 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-21 20:58:24,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:24,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:24,701 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:24,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:24,702 INFO L85 PathProgramCache]: Analyzing trace with hash -106198922, now seen corresponding path program 1 times [2023-11-21 20:58:24,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:24,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455375026] [2023-11-21 20:58:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:24,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:24,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:24,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:24,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 20:58:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:24,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 20:58:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:24,914 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 20:58:24,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:24,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455375026] [2023-11-21 20:58:24,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455375026] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:24,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411334470] [2023-11-21 20:58:24,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:24,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:24,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:24,916 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:24,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 20:58:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:24,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 20:58:24,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:25,073 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 20:58:25,074 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:58:25,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411334470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:25,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 20:58:25,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-11-21 20:58:25,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682029326] [2023-11-21 20:58:25,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:25,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 20:58:25,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:25,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 20:58:25,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 20:58:25,078 INFO L87 Difference]: Start difference. First operand 110 states and 131 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 20:58:25,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:25,197 INFO L93 Difference]: Finished difference Result 227 states and 269 transitions. [2023-11-21 20:58:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 20:58:25,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-11-21 20:58:25,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:25,200 INFO L225 Difference]: With dead ends: 227 [2023-11-21 20:58:25,200 INFO L226 Difference]: Without dead ends: 148 [2023-11-21 20:58:25,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-21 20:58:25,201 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 13 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:25,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 163 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:25,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-21 20:58:25,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 110. [2023-11-21 20:58:25,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 91 states have (on average 1.2967032967032968) internal successors, (118), 100 states have internal predecessors, (118), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-21 20:58:25,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 130 transitions. [2023-11-21 20:58:25,218 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 130 transitions. Word has length 41 [2023-11-21 20:58:25,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:25,219 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 130 transitions. [2023-11-21 20:58:25,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 20:58:25,219 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 130 transitions. [2023-11-21 20:58:25,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 20:58:25,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:25,220 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-11-21 20:58:25,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:25,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:25,440 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:25,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:25,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1804716570, now seen corresponding path program 1 times [2023-11-21 20:58:25,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:25,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530753707] [2023-11-21 20:58:25,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:25,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:25,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:25,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:25,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 20:58:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:25,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-21 20:58:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:25,557 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 20:58:25,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:25,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530753707] [2023-11-21 20:58:25,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530753707] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:25,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077185337] [2023-11-21 20:58:25,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:25,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:25,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:25,561 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:25,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 20:58:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:25,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 20:58:25,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:25,729 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 20:58:25,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:58:25,856 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 20:58:25,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077185337] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:58:25,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:58:25,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-21 20:58:25,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195446316] [2023-11-21 20:58:25,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:58:25,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 20:58:25,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:25,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 20:58:25,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-21 20:58:25,860 INFO L87 Difference]: Start difference. First operand 110 states and 130 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-21 20:58:26,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:26,113 INFO L93 Difference]: Finished difference Result 337 states and 402 transitions. [2023-11-21 20:58:26,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 20:58:26,113 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 44 [2023-11-21 20:58:26,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:26,117 INFO L225 Difference]: With dead ends: 337 [2023-11-21 20:58:26,118 INFO L226 Difference]: Without dead ends: 259 [2023-11-21 20:58:26,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2023-11-21 20:58:26,121 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 111 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:26,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 220 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 20:58:26,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-21 20:58:26,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 125. [2023-11-21 20:58:26,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 106 states have (on average 1.2830188679245282) internal successors, (136), 115 states have internal predecessors, (136), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-21 20:58:26,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 148 transitions. [2023-11-21 20:58:26,147 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 148 transitions. Word has length 44 [2023-11-21 20:58:26,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:26,147 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 148 transitions. [2023-11-21 20:58:26,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-21 20:58:26,148 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 148 transitions. [2023-11-21 20:58:26,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 20:58:26,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:26,149 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-21 20:58:26,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:26,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:26,370 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:26,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:26,370 INFO L85 PathProgramCache]: Analyzing trace with hash 867112246, now seen corresponding path program 1 times [2023-11-21 20:58:26,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:26,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791272588] [2023-11-21 20:58:26,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:26,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:26,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:26,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:26,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 20:58:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:26,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-21 20:58:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:26,618 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 20:58:26,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:26,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791272588] [2023-11-21 20:58:26,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791272588] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:26,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32166684] [2023-11-21 20:58:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:26,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:26,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:26,620 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:26,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 20:58:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:26,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-21 20:58:26,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:26,827 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-21 20:58:26,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:58:27,058 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-21 20:58:27,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32166684] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:58:27,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:58:27,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 14 [2023-11-21 20:58:27,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927755146] [2023-11-21 20:58:27,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:58:27,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 20:58:27,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:27,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 20:58:27,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-11-21 20:58:27,062 INFO L87 Difference]: Start difference. First operand 125 states and 148 transitions. Second operand has 14 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-21 20:58:27,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:27,540 INFO L93 Difference]: Finished difference Result 266 states and 314 transitions. [2023-11-21 20:58:27,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-21 20:58:27,541 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 44 [2023-11-21 20:58:27,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:27,542 INFO L225 Difference]: With dead ends: 266 [2023-11-21 20:58:27,543 INFO L226 Difference]: Without dead ends: 152 [2023-11-21 20:58:27,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-11-21 20:58:27,545 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 54 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:27,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 415 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 20:58:27,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-21 20:58:27,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 96. [2023-11-21 20:58:27,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 80 states have (on average 1.2625) internal successors, (101), 87 states have internal predecessors, (101), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:27,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2023-11-21 20:58:27,559 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 44 [2023-11-21 20:58:27,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:27,559 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2023-11-21 20:58:27,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-21 20:58:27,560 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2023-11-21 20:58:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-21 20:58:27,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:27,561 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 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] [2023-11-21 20:58:27,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:27,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:27,787 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:27,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:27,787 INFO L85 PathProgramCache]: Analyzing trace with hash -589696100, now seen corresponding path program 1 times [2023-11-21 20:58:27,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:27,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049299523] [2023-11-21 20:58:27,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:27,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:27,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:27,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:27,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-21 20:58:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:27,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-21 20:58:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:27,961 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 20:58:27,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:27,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049299523] [2023-11-21 20:58:27,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049299523] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:27,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540204] [2023-11-21 20:58:27,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:27,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:27,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:27,964 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:27,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 20:58:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:28,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 20:58:28,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 20:58:28,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:58:28,294 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 20:58:28,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540204] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:58:28,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:58:28,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-11-21 20:58:28,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874398653] [2023-11-21 20:58:28,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:58:28,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 20:58:28,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:28,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 20:58:28,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-11-21 20:58:28,298 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-21 20:58:28,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:28,660 INFO L93 Difference]: Finished difference Result 354 states and 405 transitions. [2023-11-21 20:58:28,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 20:58:28,662 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2023-11-21 20:58:28,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:28,664 INFO L225 Difference]: With dead ends: 354 [2023-11-21 20:58:28,664 INFO L226 Difference]: Without dead ends: 282 [2023-11-21 20:58:28,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=132, Invalid=210, Unknown=0, NotChecked=0, Total=342 [2023-11-21 20:58:28,666 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 111 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:28,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 211 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 20:58:28,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-21 20:58:28,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 116. [2023-11-21 20:58:28,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 100 states have (on average 1.25) internal successors, (125), 107 states have internal predecessors, (125), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:28,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 133 transitions. [2023-11-21 20:58:28,689 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 133 transitions. Word has length 48 [2023-11-21 20:58:28,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:28,689 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 133 transitions. [2023-11-21 20:58:28,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-21 20:58:28,690 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 133 transitions. [2023-11-21 20:58:28,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-21 20:58:28,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:28,691 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-21 20:58:28,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:28,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:28,912 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:28,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:28,913 INFO L85 PathProgramCache]: Analyzing trace with hash -953671564, now seen corresponding path program 1 times [2023-11-21 20:58:28,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:28,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671842477] [2023-11-21 20:58:28,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:28,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:29,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 20:58:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:29,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 20:58:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:29,269 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-21 20:58:29,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:29,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671842477] [2023-11-21 20:58:29,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671842477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:29,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:29,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 20:58:29,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455738697] [2023-11-21 20:58:29,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:29,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 20:58:29,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:29,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 20:58:29,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 20:58:29,273 INFO L87 Difference]: Start difference. First operand 116 states and 133 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:29,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:29,347 INFO L93 Difference]: Finished difference Result 148 states and 165 transitions. [2023-11-21 20:58:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 20:58:29,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 49 [2023-11-21 20:58:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:29,351 INFO L225 Difference]: With dead ends: 148 [2023-11-21 20:58:29,351 INFO L226 Difference]: Without dead ends: 118 [2023-11-21 20:58:29,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-21 20:58:29,353 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 1 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:29,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 274 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 20:58:29,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-21 20:58:29,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2023-11-21 20:58:29,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 100 states have (on average 1.23) internal successors, (123), 107 states have internal predecessors, (123), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:29,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 131 transitions. [2023-11-21 20:58:29,370 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 131 transitions. Word has length 49 [2023-11-21 20:58:29,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:29,371 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 131 transitions. [2023-11-21 20:58:29,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:29,372 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 131 transitions. [2023-11-21 20:58:29,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-21 20:58:29,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:29,373 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-21 20:58:29,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 20:58:29,373 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:29,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:29,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1751861283, now seen corresponding path program 2 times [2023-11-21 20:58:29,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:29,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568595463] [2023-11-21 20:58:29,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:29,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:29,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:29,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:29,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 20:58:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:29,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 20:58:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:29,821 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-21 20:58:29,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:29,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568595463] [2023-11-21 20:58:29,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568595463] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:29,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013908322] [2023-11-21 20:58:29,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 20:58:29,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:29,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:29,823 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:29,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 20:58:29,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 20:58:29,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 20:58:29,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-21 20:58:29,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:30,333 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-21 20:58:30,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:58:30,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013908322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:30,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 20:58:30,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 13 [2023-11-21 20:58:30,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505080153] [2023-11-21 20:58:30,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:30,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-21 20:58:30,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:30,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-21 20:58:30,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-21 20:58:30,337 INFO L87 Difference]: Start difference. First operand 116 states and 131 transitions. Second operand has 9 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:30,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:30,645 INFO L93 Difference]: Finished difference Result 148 states and 163 transitions. [2023-11-21 20:58:30,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 20:58:30,646 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 53 [2023-11-21 20:58:30,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:30,647 INFO L225 Difference]: With dead ends: 148 [2023-11-21 20:58:30,647 INFO L226 Difference]: Without dead ends: 147 [2023-11-21 20:58:30,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-21 20:58:30,649 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 54 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:30,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 312 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 20:58:30,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-21 20:58:30,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 125. [2023-11-21 20:58:30,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 108 states have (on average 1.212962962962963) internal successors, (131), 115 states have internal predecessors, (131), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-21 20:58:30,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 140 transitions. [2023-11-21 20:58:30,664 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 140 transitions. Word has length 53 [2023-11-21 20:58:30,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:30,664 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 140 transitions. [2023-11-21 20:58:30,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:30,665 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 140 transitions. [2023-11-21 20:58:30,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-21 20:58:30,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:30,666 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-21 20:58:30,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:30,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:30,874 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:30,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:30,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1526874890, now seen corresponding path program 1 times [2023-11-21 20:58:30,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:30,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689407932] [2023-11-21 20:58:30,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:30,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:31,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:31,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:31,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 20:58:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:31,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 20:58:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:31,347 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-21 20:58:31,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:31,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689407932] [2023-11-21 20:58:31,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689407932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:31,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:31,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 20:58:31,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690579700] [2023-11-21 20:58:31,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:31,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 20:58:31,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:31,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 20:58:31,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:58:31,351 INFO L87 Difference]: Start difference. First operand 125 states and 140 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:31,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:31,472 INFO L93 Difference]: Finished difference Result 129 states and 144 transitions. [2023-11-21 20:58:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:58:31,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 54 [2023-11-21 20:58:31,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:31,474 INFO L225 Difference]: With dead ends: 129 [2023-11-21 20:58:31,474 INFO L226 Difference]: Without dead ends: 128 [2023-11-21 20:58:31,475 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 [2023-11-21 20:58:31,476 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 16 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:31,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 143 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:31,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-21 20:58:31,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2023-11-21 20:58:31,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 108 states have (on average 1.2037037037037037) internal successors, (130), 114 states have internal predecessors, (130), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-21 20:58:31,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 139 transitions. [2023-11-21 20:58:31,491 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 139 transitions. Word has length 54 [2023-11-21 20:58:31,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:31,492 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 139 transitions. [2023-11-21 20:58:31,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:31,492 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 139 transitions. [2023-11-21 20:58:31,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-21 20:58:31,493 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:31,494 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-21 20:58:31,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 20:58:31,494 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:31,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:31,495 INFO L85 PathProgramCache]: Analyzing trace with hash -88481147, now seen corresponding path program 1 times [2023-11-21 20:58:31,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:31,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824861225] [2023-11-21 20:58:31,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:31,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:31,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:31,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:31,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 20:58:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:31,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 20:58:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:31,595 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-21 20:58:31,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:31,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824861225] [2023-11-21 20:58:31,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824861225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:31,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:31,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 20:58:31,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170657433] [2023-11-21 20:58:31,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:31,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:58:31,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:31,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:58:31,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:58:31,598 INFO L87 Difference]: Start difference. First operand 124 states and 139 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:31,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:31,685 INFO L93 Difference]: Finished difference Result 124 states and 139 transitions. [2023-11-21 20:58:31,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:58:31,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2023-11-21 20:58:31,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:31,688 INFO L225 Difference]: With dead ends: 124 [2023-11-21 20:58:31,688 INFO L226 Difference]: Without dead ends: 121 [2023-11-21 20:58:31,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:58:31,690 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 17 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:31,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 107 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-21 20:58:31,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-11-21 20:58:31,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 108 states have (on average 1.1759259259259258) internal successors, (127), 111 states have internal predecessors, (127), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-21 20:58:31,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 136 transitions. [2023-11-21 20:58:31,705 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 136 transitions. Word has length 55 [2023-11-21 20:58:31,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:31,705 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 136 transitions. [2023-11-21 20:58:31,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:31,706 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 136 transitions. [2023-11-21 20:58:31,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-21 20:58:31,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:31,707 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:31,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-21 20:58:31,708 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:31,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:31,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2135356188, now seen corresponding path program 1 times [2023-11-21 20:58:31,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:31,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857423479] [2023-11-21 20:58:31,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:31,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 20:58:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 20:58:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,233 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-21 20:58:32,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:32,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857423479] [2023-11-21 20:58:32,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857423479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:32,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:32,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 20:58:32,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738928458] [2023-11-21 20:58:32,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:32,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 20:58:32,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:32,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 20:58:32,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:58:32,236 INFO L87 Difference]: Start difference. First operand 121 states and 136 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:32,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:32,323 INFO L93 Difference]: Finished difference Result 121 states and 136 transitions. [2023-11-21 20:58:32,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:58:32,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2023-11-21 20:58:32,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:32,325 INFO L225 Difference]: With dead ends: 121 [2023-11-21 20:58:32,326 INFO L226 Difference]: Without dead ends: 120 [2023-11-21 20:58:32,326 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 [2023-11-21 20:58:32,327 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 13 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:32,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 144 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:32,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-21 20:58:32,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 111. [2023-11-21 20:58:32,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 100 states have (on average 1.18) internal successors, (118), 102 states have internal predecessors, (118), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 20:58:32,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2023-11-21 20:58:32,341 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 55 [2023-11-21 20:58:32,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:32,342 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2023-11-21 20:58:32,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2023-11-21 20:58:32,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-21 20:58:32,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:32,344 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-21 20:58:32,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-21 20:58:32,344 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:32,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:32,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1552051928, now seen corresponding path program 1 times [2023-11-21 20:58:32,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:32,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791547160] [2023-11-21 20:58:32,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:32,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 20:58:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 20:58:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,725 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-21 20:58:32,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:32,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791547160] [2023-11-21 20:58:32,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791547160] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:32,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395131752] [2023-11-21 20:58:32,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:32,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:32,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:32,727 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:32,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 20:58:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-21 20:58:32,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:33,003 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-21 20:58:33,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:58:33,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395131752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:33,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 20:58:33,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 15 [2023-11-21 20:58:33,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087240600] [2023-11-21 20:58:33,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:33,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 20:58:33,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:33,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 20:58:33,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-21 20:58:33,005 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand has 11 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 20:58:33,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:33,304 INFO L93 Difference]: Finished difference Result 170 states and 189 transitions. [2023-11-21 20:58:33,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-21 20:58:33,305 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2023-11-21 20:58:33,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:33,306 INFO L225 Difference]: With dead ends: 170 [2023-11-21 20:58:33,306 INFO L226 Difference]: Without dead ends: 138 [2023-11-21 20:58:33,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2023-11-21 20:58:33,307 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 94 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:33,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 322 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 20:58:33,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-21 20:58:33,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 116. [2023-11-21 20:58:33,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 103 states have (on average 1.1553398058252426) internal successors, (119), 106 states have internal predecessors, (119), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-21 20:58:33,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 131 transitions. [2023-11-21 20:58:33,321 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 131 transitions. Word has length 56 [2023-11-21 20:58:33,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:33,321 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 131 transitions. [2023-11-21 20:58:33,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 20:58:33,322 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 131 transitions. [2023-11-21 20:58:33,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-21 20:58:33,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:33,323 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:58:33,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:33,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-21 20:58:33,528 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:33,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:33,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1635759423, now seen corresponding path program 1 times [2023-11-21 20:58:33,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:33,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134420214] [2023-11-21 20:58:33,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:33,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:33,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:33,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:33,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 20:58:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:33,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 20:58:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:33,889 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 20:58:33,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:33,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134420214] [2023-11-21 20:58:33,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134420214] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:33,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758157683] [2023-11-21 20:58:33,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:33,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:33,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:33,892 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:33,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-21 20:58:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:34,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 20:58:34,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:34,306 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 20:58:34,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:58:34,545 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 20:58:34,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758157683] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:58:34,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:58:34,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 15 [2023-11-21 20:58:34,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031392350] [2023-11-21 20:58:34,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:58:34,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-21 20:58:34,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:34,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-21 20:58:34,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2023-11-21 20:58:34,550 INFO L87 Difference]: Start difference. First operand 116 states and 131 transitions. Second operand has 15 states, 15 states have (on average 5.6) internal successors, (84), 15 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-21 20:58:35,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:35,030 INFO L93 Difference]: Finished difference Result 284 states and 323 transitions. [2023-11-21 20:58:35,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 20:58:35,032 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 15 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-11-21 20:58:35,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:35,034 INFO L225 Difference]: With dead ends: 284 [2023-11-21 20:58:35,034 INFO L226 Difference]: Without dead ends: 206 [2023-11-21 20:58:35,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=232, Unknown=0, NotChecked=0, Total=380 [2023-11-21 20:58:35,036 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 72 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:35,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 197 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 20:58:35,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-11-21 20:58:35,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 116. [2023-11-21 20:58:35,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 103 states have (on average 1.116504854368932) internal successors, (115), 106 states have internal predecessors, (115), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-21 20:58:35,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 127 transitions. [2023-11-21 20:58:35,053 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 127 transitions. Word has length 58 [2023-11-21 20:58:35,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:35,054 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 127 transitions. [2023-11-21 20:58:35,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 15 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-21 20:58:35,054 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 127 transitions. [2023-11-21 20:58:35,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-21 20:58:35,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:35,055 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 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] [2023-11-21 20:58:35,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:35,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-21 20:58:35,264 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:35,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:35,265 INFO L85 PathProgramCache]: Analyzing trace with hash -794406505, now seen corresponding path program 1 times [2023-11-21 20:58:35,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:35,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87744765] [2023-11-21 20:58:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:35,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:35,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:35,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:35,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-21 20:58:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:35,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-21 20:58:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 3 proven. 95 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 20:58:35,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:35,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87744765] [2023-11-21 20:58:35,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87744765] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:35,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568573979] [2023-11-21 20:58:35,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:35,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:35,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:35,625 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:35,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-21 20:58:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:35,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 20:58:35,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:35,912 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 21 proven. 87 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 20:58:35,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:58:36,395 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 3 proven. 95 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 20:58:36,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568573979] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:58:36,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:58:36,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2023-11-21 20:58:36,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199604023] [2023-11-21 20:58:36,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:58:36,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-21 20:58:36,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:36,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-21 20:58:36,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2023-11-21 20:58:36,399 INFO L87 Difference]: Start difference. First operand 116 states and 127 transitions. Second operand has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-21 20:58:36,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:36,896 INFO L93 Difference]: Finished difference Result 566 states and 646 transitions. [2023-11-21 20:58:36,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-21 20:58:36,897 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2023-11-21 20:58:36,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:36,901 INFO L225 Difference]: With dead ends: 566 [2023-11-21 20:58:36,901 INFO L226 Difference]: Without dead ends: 494 [2023-11-21 20:58:36,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=515, Unknown=0, NotChecked=0, Total=812 [2023-11-21 20:58:36,904 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 276 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:36,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 144 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 20:58:36,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-11-21 20:58:36,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 156. [2023-11-21 20:58:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 143 states have (on average 1.1398601398601398) internal successors, (163), 146 states have internal predecessors, (163), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-21 20:58:36,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 175 transitions. [2023-11-21 20:58:36,938 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 175 transitions. Word has length 77 [2023-11-21 20:58:36,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:36,938 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 175 transitions. [2023-11-21 20:58:36,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-21 20:58:36,939 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 175 transitions. [2023-11-21 20:58:36,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-21 20:58:36,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:36,941 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 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] [2023-11-21 20:58:36,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:37,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-21 20:58:37,156 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:37,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:37,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1481989441, now seen corresponding path program 2 times [2023-11-21 20:58:37,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:37,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338229495] [2023-11-21 20:58:37,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:37,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:37,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:37,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 20:58:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:37,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-21 20:58:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:37,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-21 20:58:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:37,913 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 3 proven. 86 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 20:58:37,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:37,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338229495] [2023-11-21 20:58:37,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338229495] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:37,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709575394] [2023-11-21 20:58:37,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 20:58:37,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:37,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:37,916 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:37,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-21 20:58:38,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 20:58:38,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 20:58:38,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 20:58:38,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-11-21 20:58:39,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:58:39,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709575394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:39,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 20:58:39,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2023-11-21 20:58:39,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551994867] [2023-11-21 20:58:39,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:39,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 20:58:39,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:39,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 20:58:39,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-11-21 20:58:39,462 INFO L87 Difference]: Start difference. First operand 156 states and 175 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:39,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:39,790 INFO L93 Difference]: Finished difference Result 156 states and 175 transitions. [2023-11-21 20:58:39,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 20:58:39,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 78 [2023-11-21 20:58:39,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:39,793 INFO L225 Difference]: With dead ends: 156 [2023-11-21 20:58:39,793 INFO L226 Difference]: Without dead ends: 155 [2023-11-21 20:58:39,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2023-11-21 20:58:39,794 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 19 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:39,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 201 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:58:39,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-21 20:58:39,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-11-21 20:58:39,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 143 states have (on average 1.132867132867133) internal successors, (162), 145 states have internal predecessors, (162), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-21 20:58:39,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 174 transitions. [2023-11-21 20:58:39,827 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 174 transitions. Word has length 78 [2023-11-21 20:58:39,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:39,827 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 174 transitions. [2023-11-21 20:58:39,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:39,828 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 174 transitions. [2023-11-21 20:58:39,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-21 20:58:39,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:39,830 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 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] [2023-11-21 20:58:39,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:40,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-21 20:58:40,038 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-21 20:58:40,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:40,038 INFO L85 PathProgramCache]: Analyzing trace with hash -96166148, now seen corresponding path program 1 times [2023-11-21 20:58:40,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:40,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532958744] [2023-11-21 20:58:40,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:40,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:40,077 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 20:58:40,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71913718] [2023-11-21 20:58:40,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:40,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:40,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:40,079 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:40,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-21 20:58:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:40,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 20:58:40,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:40,222 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-11-21 20:58:40,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:58:40,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:40,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532958744] [2023-11-21 20:58:40,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 20:58:40,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71913718] [2023-11-21 20:58:40,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71913718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:40,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:40,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 20:58:40,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882687805] [2023-11-21 20:58:40,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:40,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:58:40,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:40,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:58:40,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:58:40,227 INFO L87 Difference]: Start difference. First operand 155 states and 174 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:40,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:40,291 INFO L93 Difference]: Finished difference Result 155 states and 174 transitions. [2023-11-21 20:58:40,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:58:40,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 88 [2023-11-21 20:58:40,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:58:40,292 INFO L225 Difference]: With dead ends: 155 [2023-11-21 20:58:40,292 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 20:58:40,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:58:40,294 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 6 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:58:40,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 73 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 20:58:40,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 20:58:40,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 20:58:40,296 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) [2023-11-21 20:58:40,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 20:58:40,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2023-11-21 20:58:40,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:58:40,297 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 20:58:40,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 20:58:40,297 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 20:58:40,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 20:58:40,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-11-21 20:58:40,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-11-21 20:58:40,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-11-21 20:58:40,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-11-21 20:58:40,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2023-11-21 20:58:40,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2023-11-21 20:58:40,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-11-21 20:58:40,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-11-21 20:58:40,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2023-11-21 20:58:40,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2023-11-21 20:58:40,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-11-21 20:58:40,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-11-21 20:58:40,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-11-21 20:58:40,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-11-21 20:58:40,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-11-21 20:58:40,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-11-21 20:58:40,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-11-21 20:58:40,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-11-21 20:58:40,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:40,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9509fe59-3fd2-4c40-956e-df0d40cc1974/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-21 20:58:40,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 20:59:02,590 WARN L293 SmtUtils]: Spent 19.75s on a formula simplification. DAG size of input: 138 DAG size of output: 212 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)