./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB --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 ca80e9b36e5fc58b8f30c1bb1c05df2fc99c88b9aad13b3e482ed10946a6c2f8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:13:48,876 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:13:48,979 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:13:48,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:13:48,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:13:49,019 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:13:49,020 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:13:49,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:13:49,021 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:13:49,021 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:13:49,021 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:13:49,022 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:13:49,022 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:13:49,022 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:13:49,023 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:13:49,023 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:13:49,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:13:49,023 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:13:49,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:13:49,024 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:13:49,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:13:49,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:13:49,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:13:49,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:13:49,025 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:13:49,025 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:13:49,025 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:13:49,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:13:49,026 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:13:49,026 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:13:49,026 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:13:49,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:13:49,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:13:49,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:13:49,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:13:49,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:13:49,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:13:49,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:13:49,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:13:49,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:13:49,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:13:49,028 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:13:49,028 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:13:49,028 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:13:49,028 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:13:49,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:13:49,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:13:49,029 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:13:49,029 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:13:49,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:13:49,030 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ca80e9b36e5fc58b8f30c1bb1c05df2fc99c88b9aad13b3e482ed10946a6c2f8 [2024-11-27 20:13:49,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:13:49,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:13:49,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:13:49,528 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:13:49,529 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:13:49,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c [2024-11-27 20:13:53,285 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/data/8a7961f96/6c1c353a374f435ba33fddda5e66d624/FLAGcf57877ec [2024-11-27 20:13:53,607 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:13:53,609 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/sv-benchmarks/c/termination-nla/cohencu1-both-nt.c [2024-11-27 20:13:53,619 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/data/8a7961f96/6c1c353a374f435ba33fddda5e66d624/FLAGcf57877ec [2024-11-27 20:13:53,646 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/data/8a7961f96/6c1c353a374f435ba33fddda5e66d624 [2024-11-27 20:13:53,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:13:53,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:13:53,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:13:53,662 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:13:53,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:13:53,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:53,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3011d970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53, skipping insertion in model container [2024-11-27 20:13:53,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:53,725 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:13:53,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:13:53,919 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:13:53,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:13:53,951 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:13:53,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53 WrapperNode [2024-11-27 20:13:53,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:13:53,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:13:53,954 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:13:53,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:13:53,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:53,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:53,997 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2024-11-27 20:13:53,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:13:53,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:13:53,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:13:54,001 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:13:54,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:54,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:54,016 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:54,026 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-27 20:13:54,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:54,031 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:54,033 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:54,037 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:54,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:54,046 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:54,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:54,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:13:54,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:13:54,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:13:54,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:13:54,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (1/1) ... [2024-11-27 20:13:54,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:13:54,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:54,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:54,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:13:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:13:54,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:13:54,229 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:13:54,235 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:13:54,496 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-27 20:13:54,496 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:13:54,519 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:13:54,519 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:13:54,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:13:54 BoogieIcfgContainer [2024-11-27 20:13:54,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:13:54,526 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:13:54,526 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:13:54,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:13:54,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:13:53" (1/3) ... [2024-11-27 20:13:54,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53105da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:13:54, skipping insertion in model container [2024-11-27 20:13:54,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:13:53" (2/3) ... [2024-11-27 20:13:54,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53105da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:13:54, skipping insertion in model container [2024-11-27 20:13:54,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:13:54" (3/3) ... [2024-11-27 20:13:54,539 INFO L128 eAbstractionObserver]: Analyzing ICFG cohencu1-both-nt.c [2024-11-27 20:13:54,565 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:13:54,568 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG cohencu1-both-nt.c that has 1 procedures, 31 locations, 1 initial locations, 1 loop locations, and 12 error locations. [2024-11-27 20:13:54,674 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:13:54,702 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6d594d14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:13:54,702 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-27 20:13:54,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 30 states have internal predecessors, (32), 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) [2024-11-27 20:13:54,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-27 20:13:54,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:54,718 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-27 20:13:54,718 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:54,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:54,731 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2024-11-27 20:13:54,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:54,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140123905] [2024-11-27 20:13:54,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:54,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:55,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:55,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:55,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140123905] [2024-11-27 20:13:55,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140123905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:55,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:55,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:13:55,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625344837] [2024-11-27 20:13:55,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:55,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:13:55,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:55,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:13:55,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:13:55,056 INFO L87 Difference]: Start difference. First operand has 31 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-27 20:13:55,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:55,164 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2024-11-27 20:13:55,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:13:55,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-27 20:13:55,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:55,181 INFO L225 Difference]: With dead ends: 35 [2024-11-27 20:13:55,181 INFO L226 Difference]: Without dead ends: 24 [2024-11-27 20:13:55,188 INFO L434 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 [2024-11-27 20:13:55,193 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:55,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 20 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:13:55,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-27 20:13:55,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-27 20:13:55,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.6) internal successors, (24), 23 states have internal predecessors, (24), 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) [2024-11-27 20:13:55,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2024-11-27 20:13:55,257 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 3 [2024-11-27 20:13:55,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:55,260 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2024-11-27 20:13:55,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-27 20:13:55,261 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2024-11-27 20:13:55,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-27 20:13:55,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:55,262 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-27 20:13:55,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:13:55,264 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:55,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:55,266 INFO L85 PathProgramCache]: Analyzing trace with hash 925668, now seen corresponding path program 1 times [2024-11-27 20:13:55,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:55,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684200228] [2024-11-27 20:13:55,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:55,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:55,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:55,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:55,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684200228] [2024-11-27 20:13:55,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684200228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:55,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:55,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:13:55,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785961935] [2024-11-27 20:13:55,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:55,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:13:55,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:55,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:13:55,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:13:55,342 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:55,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:55,431 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2024-11-27 20:13:55,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:13:55,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-27 20:13:55,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:55,432 INFO L225 Difference]: With dead ends: 34 [2024-11-27 20:13:55,432 INFO L226 Difference]: Without dead ends: 31 [2024-11-27 20:13:55,433 INFO L434 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 [2024-11-27 20:13:55,434 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:55,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 30 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:13:55,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-27 20:13:55,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-27 20:13:55,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 30 states have internal predecessors, (31), 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) [2024-11-27 20:13:55,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2024-11-27 20:13:55,442 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 4 [2024-11-27 20:13:55,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:55,442 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2024-11-27 20:13:55,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:55,443 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2024-11-27 20:13:55,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 20:13:55,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:55,443 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:55,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:13:55,444 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:55,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:55,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2077099987, now seen corresponding path program 1 times [2024-11-27 20:13:55,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:55,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104913718] [2024-11-27 20:13:55,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:55,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:55,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:55,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:55,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104913718] [2024-11-27 20:13:55,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104913718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:55,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:55,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:13:55,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685560988] [2024-11-27 20:13:55,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:55,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:13:55,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:55,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:13:55,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:13:55,535 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-27 20:13:55,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:55,591 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2024-11-27 20:13:55,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:13:55,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-27 20:13:55,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:55,593 INFO L225 Difference]: With dead ends: 34 [2024-11-27 20:13:55,593 INFO L226 Difference]: Without dead ends: 33 [2024-11-27 20:13:55,593 INFO L434 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 [2024-11-27 20:13:55,594 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:55,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 36 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:13:55,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-27 20:13:55,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2024-11-27 20:13:55,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.391304347826087) internal successors, (32), 31 states have internal predecessors, (32), 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) [2024-11-27 20:13:55,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2024-11-27 20:13:55,607 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 10 [2024-11-27 20:13:55,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:55,608 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2024-11-27 20:13:55,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-27 20:13:55,608 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2024-11-27 20:13:55,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-27 20:13:55,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:55,611 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:55,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:13:55,612 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:55,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:55,616 INFO L85 PathProgramCache]: Analyzing trace with hash 34409900, now seen corresponding path program 1 times [2024-11-27 20:13:55,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:55,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985288485] [2024-11-27 20:13:55,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:55,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:55,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:55,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985288485] [2024-11-27 20:13:55,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985288485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:55,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:55,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:13:55,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833488242] [2024-11-27 20:13:55,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:55,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:13:55,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:55,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:13:55,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:13:55,749 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:55,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:55,783 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2024-11-27 20:13:55,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:13:55,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-27 20:13:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:55,785 INFO L225 Difference]: With dead ends: 34 [2024-11-27 20:13:55,785 INFO L226 Difference]: Without dead ends: 33 [2024-11-27 20:13:55,786 INFO L434 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 [2024-11-27 20:13:55,787 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:55,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:13:55,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-27 20:13:55,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-27 20:13:55,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 32 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:55,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2024-11-27 20:13:55,794 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 11 [2024-11-27 20:13:55,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:55,794 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2024-11-27 20:13:55,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:55,795 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2024-11-27 20:13:55,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-27 20:13:55,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:55,795 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:55,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:13:55,796 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:55,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:55,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1066706959, now seen corresponding path program 1 times [2024-11-27 20:13:55,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:55,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924459277] [2024-11-27 20:13:55,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:55,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:55,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:55,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:55,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924459277] [2024-11-27 20:13:55,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924459277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:55,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:55,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:13:55,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643160248] [2024-11-27 20:13:55,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:55,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:13:55,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:55,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:13:55,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:13:55,878 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-27 20:13:55,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:55,924 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2024-11-27 20:13:55,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:13:55,925 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-27 20:13:55,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:55,925 INFO L225 Difference]: With dead ends: 36 [2024-11-27 20:13:55,925 INFO L226 Difference]: Without dead ends: 35 [2024-11-27 20:13:55,926 INFO L434 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 [2024-11-27 20:13:55,927 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:55,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 28 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:13:55,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-27 20:13:55,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2024-11-27 20:13:55,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.36) internal successors, (34), 33 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:55,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2024-11-27 20:13:55,933 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 12 [2024-11-27 20:13:55,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:55,934 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2024-11-27 20:13:55,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-27 20:13:55,934 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2024-11-27 20:13:55,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-27 20:13:55,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:55,935 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:55,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:13:55,935 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:55,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:55,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1291822578, now seen corresponding path program 1 times [2024-11-27 20:13:55,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:55,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271038151] [2024-11-27 20:13:55,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:55,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:55,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:55,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271038151] [2024-11-27 20:13:55,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271038151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:55,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:55,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:13:55,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905701204] [2024-11-27 20:13:55,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:55,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:13:55,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:55,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:13:55,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:13:55,998 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-27 20:13:56,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:56,042 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2024-11-27 20:13:56,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:13:56,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-27 20:13:56,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:56,043 INFO L225 Difference]: With dead ends: 36 [2024-11-27 20:13:56,043 INFO L226 Difference]: Without dead ends: 35 [2024-11-27 20:13:56,044 INFO L434 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 [2024-11-27 20:13:56,045 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:56,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:13:56,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-27 20:13:56,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-27 20:13:56,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 34 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:56,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2024-11-27 20:13:56,051 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 13 [2024-11-27 20:13:56,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:56,051 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2024-11-27 20:13:56,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-27 20:13:56,056 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2024-11-27 20:13:56,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-27 20:13:56,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:56,057 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:56,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:13:56,057 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:56,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:56,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1391794191, now seen corresponding path program 1 times [2024-11-27 20:13:56,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:56,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769515791] [2024-11-27 20:13:56,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:56,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:56,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:56,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:56,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769515791] [2024-11-27 20:13:56,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769515791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:56,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:56,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:13:56,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118361900] [2024-11-27 20:13:56,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:56,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:13:56,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:56,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:13:56,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:13:56,139 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:56,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:56,168 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2024-11-27 20:13:56,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:13:56,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-27 20:13:56,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:56,169 INFO L225 Difference]: With dead ends: 35 [2024-11-27 20:13:56,169 INFO L226 Difference]: Without dead ends: 34 [2024-11-27 20:13:56,170 INFO L434 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 [2024-11-27 20:13:56,171 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:56,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 16 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:13:56,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-27 20:13:56,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-27 20:13:56,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 33 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:56,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2024-11-27 20:13:56,179 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 14 [2024-11-27 20:13:56,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:56,179 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2024-11-27 20:13:56,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:56,179 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2024-11-27 20:13:56,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 20:13:56,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:56,180 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:56,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:13:56,181 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:56,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:56,182 INFO L85 PathProgramCache]: Analyzing trace with hash -195946896, now seen corresponding path program 1 times [2024-11-27 20:13:56,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:56,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820683882] [2024-11-27 20:13:56,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:56,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:56,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:56,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:56,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820683882] [2024-11-27 20:13:56,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820683882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:56,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:56,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:13:56,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335335496] [2024-11-27 20:13:56,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:56,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:13:56,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:56,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:13:56,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:13:56,238 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:56,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:56,291 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2024-11-27 20:13:56,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:13:56,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-27 20:13:56,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:56,293 INFO L225 Difference]: With dead ends: 37 [2024-11-27 20:13:56,293 INFO L226 Difference]: Without dead ends: 36 [2024-11-27 20:13:56,297 INFO L434 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 [2024-11-27 20:13:56,298 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:56,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:13:56,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-27 20:13:56,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-27 20:13:56,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 35 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:56,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2024-11-27 20:13:56,305 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 15 [2024-11-27 20:13:56,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:56,305 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2024-11-27 20:13:56,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:56,306 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2024-11-27 20:13:56,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-27 20:13:56,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:56,306 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:56,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:13:56,307 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:56,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:56,308 INFO L85 PathProgramCache]: Analyzing trace with hash 673595154, now seen corresponding path program 1 times [2024-11-27 20:13:56,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:56,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151594960] [2024-11-27 20:13:56,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:56,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:56,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:56,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:56,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151594960] [2024-11-27 20:13:56,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151594960] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:13:56,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328246027] [2024-11-27 20:13:56,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:56,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:13:56,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:56,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:13:56,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:13:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:56,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:13:56,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:13:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:56,632 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:13:56,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:56,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328246027] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:13:56,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:13:56,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-27 20:13:56,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647668451] [2024-11-27 20:13:56,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:13:56,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:13:56,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:56,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:13:56,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:13:56,744 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:56,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:56,836 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2024-11-27 20:13:56,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:13:56,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-27 20:13:56,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:56,838 INFO L225 Difference]: With dead ends: 59 [2024-11-27 20:13:56,838 INFO L226 Difference]: Without dead ends: 56 [2024-11-27 20:13:56,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:13:56,839 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 29 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:56,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 49 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:13:56,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-27 20:13:56,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2024-11-27 20:13:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 50 states have internal predecessors, (56), 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) [2024-11-27 20:13:56,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2024-11-27 20:13:56,853 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 17 [2024-11-27 20:13:56,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:56,854 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2024-11-27 20:13:56,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:56,854 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-11-27 20:13:56,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-27 20:13:56,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:56,855 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:56,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:13:57,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:13:57,063 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:57,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:57,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1663730469, now seen corresponding path program 1 times [2024-11-27 20:13:57,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:57,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92851734] [2024-11-27 20:13:57,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:57,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:57,260 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:57,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:57,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92851734] [2024-11-27 20:13:57,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92851734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:13:57,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389917122] [2024-11-27 20:13:57,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:57,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:13:57,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:57,263 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:13:57,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:13:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:57,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:13:57,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:13:57,639 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:57,640 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:13:57,821 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:57,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389917122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:13:57,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:13:57,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-27 20:13:57,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781162115] [2024-11-27 20:13:57,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:13:57,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:13:57,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:57,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:13:57,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:13:57,829 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 11 states, 10 states have (on average 6.7) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:57,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:57,971 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2024-11-27 20:13:57,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:13:57,972 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-27 20:13:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:57,973 INFO L225 Difference]: With dead ends: 51 [2024-11-27 20:13:57,973 INFO L226 Difference]: Without dead ends: 49 [2024-11-27 20:13:57,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:13:57,974 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 20 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:57,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 52 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:13:57,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-27 20:13:57,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-27 20:13:57,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 48 states have internal predecessors, (52), 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) [2024-11-27 20:13:57,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2024-11-27 20:13:57,991 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 23 [2024-11-27 20:13:57,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:57,992 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2024-11-27 20:13:57,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:57,992 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2024-11-27 20:13:57,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-27 20:13:57,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:57,993 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:58,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:13:58,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:13:58,200 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:58,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:58,201 INFO L85 PathProgramCache]: Analyzing trace with hash -36036930, now seen corresponding path program 1 times [2024-11-27 20:13:58,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:58,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067687138] [2024-11-27 20:13:58,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:58,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:58,366 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:58,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:58,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067687138] [2024-11-27 20:13:58,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067687138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:13:58,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979921568] [2024-11-27 20:13:58,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:58,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:13:58,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:58,369 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:13:58,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:13:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:58,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:13:58,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:13:58,675 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:58,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:13:58,803 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:58,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979921568] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:13:58,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:13:58,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-27 20:13:58,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209344561] [2024-11-27 20:13:58,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:13:58,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:13:58,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:58,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:13:58,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:13:58,811 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:58,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:58,957 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2024-11-27 20:13:58,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:13:58,958 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-27 20:13:58,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:58,963 INFO L225 Difference]: With dead ends: 50 [2024-11-27 20:13:58,963 INFO L226 Difference]: Without dead ends: 49 [2024-11-27 20:13:58,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:13:58,964 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:58,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 75 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:13:58,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-27 20:13:58,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-27 20:13:58,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.1333333333333333) internal successors, (51), 48 states have internal predecessors, (51), 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) [2024-11-27 20:13:58,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2024-11-27 20:13:58,970 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 24 [2024-11-27 20:13:58,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:58,971 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2024-11-27 20:13:58,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:58,971 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2024-11-27 20:13:58,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-27 20:13:58,971 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:58,971 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:58,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:13:59,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:13:59,172 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:59,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:59,173 INFO L85 PathProgramCache]: Analyzing trace with hash -271749472, now seen corresponding path program 1 times [2024-11-27 20:13:59,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:59,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656826962] [2024-11-27 20:13:59,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:59,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:59,255 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:59,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:59,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656826962] [2024-11-27 20:13:59,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656826962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:13:59,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783701037] [2024-11-27 20:13:59,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:59,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:13:59,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:59,258 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:13:59,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:13:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:59,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:13:59,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:13:59,505 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:59,506 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:13:59,620 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:59,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783701037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:13:59,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:13:59,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-27 20:13:59,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199325068] [2024-11-27 20:13:59,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:13:59,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:13:59,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:59,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:13:59,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:13:59,623 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 11 states, 10 states have (on average 7.6) internal successors, (76), 11 states have internal predecessors, (76), 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) [2024-11-27 20:13:59,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:59,746 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2024-11-27 20:13:59,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:13:59,747 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.6) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-27 20:13:59,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:59,748 INFO L225 Difference]: With dead ends: 57 [2024-11-27 20:13:59,748 INFO L226 Difference]: Without dead ends: 56 [2024-11-27 20:13:59,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:13:59,749 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 56 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 [2024-11-27 20:13:59,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 56 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:13:59,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-27 20:13:59,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-27 20:13:59,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 55 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:59,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2024-11-27 20:13:59,756 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 26 [2024-11-27 20:13:59,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:59,756 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2024-11-27 20:13:59,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.6) internal successors, (76), 11 states have internal predecessors, (76), 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) [2024-11-27 20:13:59,757 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2024-11-27 20:13:59,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-27 20:13:59,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:59,757 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-27 20:13:59,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:13:59,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:13:59,964 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:13:59,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:59,965 INFO L85 PathProgramCache]: Analyzing trace with hash 841764482, now seen corresponding path program 1 times [2024-11-27 20:13:59,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:59,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6196918] [2024-11-27 20:13:59,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:59,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:00,065 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:00,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:00,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6196918] [2024-11-27 20:14:00,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6196918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:00,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839966625] [2024-11-27 20:14:00,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:14:00,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:00,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:00,069 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:14:00,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:14:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:00,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:14:00,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:00,226 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:00,226 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:00,328 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:00,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839966625] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:14:00,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:14:00,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-27 20:14:00,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948787723] [2024-11-27 20:14:00,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:14:00,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:14:00,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:00,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:14:00,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:14:00,334 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:14:00,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:00,420 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2024-11-27 20:14:00,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:14:00,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-27 20:14:00,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:00,422 INFO L225 Difference]: With dead ends: 75 [2024-11-27 20:14:00,422 INFO L226 Difference]: Without dead ends: 74 [2024-11-27 20:14:00,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:14:00,426 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:00,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 52 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:14:00,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-27 20:14:00,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2024-11-27 20:14:00,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 67 states have (on average 1.1194029850746268) internal successors, (75), 70 states have internal predecessors, (75), 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) [2024-11-27 20:14:00,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2024-11-27 20:14:00,447 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 28 [2024-11-27 20:14:00,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:00,447 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2024-11-27 20:14:00,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:14:00,447 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2024-11-27 20:14:00,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-27 20:14:00,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:00,448 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:14:00,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 20:14:00,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:00,649 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:14:00,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:00,650 INFO L85 PathProgramCache]: Analyzing trace with hash -215426324, now seen corresponding path program 2 times [2024-11-27 20:14:00,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:00,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376950511] [2024-11-27 20:14:00,650 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:14:00,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:00,679 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:14:00,679 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:00,891 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:00,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:00,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376950511] [2024-11-27 20:14:00,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376950511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:00,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897552264] [2024-11-27 20:14:00,892 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:14:00,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:00,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:00,897 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:14:00,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:14:00,954 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:14:00,954 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:00,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:14:00,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:01,401 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:01,401 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:01,646 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:01,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897552264] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:14:01,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:14:01,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-11-27 20:14:01,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277839556] [2024-11-27 20:14:01,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:14:01,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 20:14:01,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:01,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 20:14:01,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:14:01,651 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand has 20 states, 19 states have (on average 5.7368421052631575) internal successors, (109), 20 states have internal predecessors, (109), 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) [2024-11-27 20:14:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:01,948 INFO L93 Difference]: Finished difference Result 73 states and 75 transitions. [2024-11-27 20:14:01,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:14:01,949 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.7368421052631575) internal successors, (109), 20 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-27 20:14:01,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:01,950 INFO L225 Difference]: With dead ends: 73 [2024-11-27 20:14:01,951 INFO L226 Difference]: Without dead ends: 72 [2024-11-27 20:14:01,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=193, Invalid=407, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:14:01,953 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 46 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:01,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 118 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:14:01,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-27 20:14:01,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2024-11-27 20:14:01,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 67 states have (on average 1.0895522388059702) internal successors, (73), 70 states have internal predecessors, (73), 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) [2024-11-27 20:14:01,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2024-11-27 20:14:01,964 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 37 [2024-11-27 20:14:01,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:01,965 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2024-11-27 20:14:01,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.7368421052631575) internal successors, (109), 20 states have internal predecessors, (109), 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) [2024-11-27 20:14:01,965 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2024-11-27 20:14:01,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 20:14:01,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:01,967 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2024-11-27 20:14:01,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:14:02,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:02,172 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:14:02,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:02,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1001215220, now seen corresponding path program 1 times [2024-11-27 20:14:02,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:02,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616228644] [2024-11-27 20:14:02,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:14:02,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:02,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:02,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616228644] [2024-11-27 20:14:02,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616228644] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:02,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681446396] [2024-11-27 20:14:02,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:14:02,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:02,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:02,338 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:14:02,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:14:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:02,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:14:02,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:02,499 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:02,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681446396] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:14:02,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:14:02,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-27 20:14:02,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935835781] [2024-11-27 20:14:02,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:14:02,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:14:02,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:02,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:14:02,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:14:02,658 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:14:02,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:02,786 INFO L93 Difference]: Finished difference Result 125 states and 129 transitions. [2024-11-27 20:14:02,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:14:02,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2024-11-27 20:14:02,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:02,788 INFO L225 Difference]: With dead ends: 125 [2024-11-27 20:14:02,788 INFO L226 Difference]: Without dead ends: 124 [2024-11-27 20:14:02,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:14:02,789 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 26 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:02,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 80 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:14:02,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-27 20:14:02,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 114. [2024-11-27 20:14:02,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 110 states have (on average 1.1272727272727272) internal successors, (124), 113 states have internal predecessors, (124), 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) [2024-11-27 20:14:02,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2024-11-27 20:14:02,801 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 45 [2024-11-27 20:14:02,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:02,802 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2024-11-27 20:14:02,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:14:02,803 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2024-11-27 20:14:02,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-27 20:14:02,804 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:02,804 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1] [2024-11-27 20:14:02,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 20:14:03,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 20:14:03,008 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:14:03,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:03,009 INFO L85 PathProgramCache]: Analyzing trace with hash 2020964704, now seen corresponding path program 2 times [2024-11-27 20:14:03,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:03,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579784986] [2024-11-27 20:14:03,009 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:14:03,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:03,033 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:14:03,033 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:03,279 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:03,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:03,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579784986] [2024-11-27 20:14:03,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579784986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:03,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431155494] [2024-11-27 20:14:03,280 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:14:03,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:03,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:03,282 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:14:03,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:14:03,346 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:14:03,347 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:03,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:14:03,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:04,189 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:04,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:04,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431155494] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:14:04,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:14:04,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 12] total 32 [2024-11-27 20:14:04,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949675358] [2024-11-27 20:14:04,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:14:04,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-27 20:14:04,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:04,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-27 20:14:04,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=945, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 20:14:04,831 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand has 33 states, 32 states have (on average 4.8125) internal successors, (154), 33 states have internal predecessors, (154), 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) [2024-11-27 20:14:06,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:06,652 INFO L93 Difference]: Finished difference Result 116 states and 124 transitions. [2024-11-27 20:14:06,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 20:14:06,653 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 4.8125) internal successors, (154), 33 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-27 20:14:06,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:06,655 INFO L225 Difference]: With dead ends: 116 [2024-11-27 20:14:06,656 INFO L226 Difference]: Without dead ends: 115 [2024-11-27 20:14:06,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=434, Invalid=2646, Unknown=0, NotChecked=0, Total=3080 [2024-11-27 20:14:06,659 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 124 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:06,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 40 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:14:06,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-27 20:14:06,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2024-11-27 20:14:06,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 110 states have (on average 1.1) internal successors, (121), 113 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:14:06,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 121 transitions. [2024-11-27 20:14:06,675 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 121 transitions. Word has length 52 [2024-11-27 20:14:06,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:06,676 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 121 transitions. [2024-11-27 20:14:06,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 4.8125) internal successors, (154), 33 states have internal predecessors, (154), 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) [2024-11-27 20:14:06,676 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 121 transitions. [2024-11-27 20:14:06,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-27 20:14:06,678 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:06,678 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1] [2024-11-27 20:14:06,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:14:06,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:06,882 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:14:06,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:06,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1489856468, now seen corresponding path program 3 times [2024-11-27 20:14:06,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:06,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275883940] [2024-11-27 20:14:06,883 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:14:06,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:06,906 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 20:14:06,906 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:07,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:07,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275883940] [2024-11-27 20:14:07,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275883940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:07,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934605982] [2024-11-27 20:14:07,463 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:14:07,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:07,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:07,467 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:14:07,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:14:07,523 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 20:14:07,523 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:07,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 20:14:07,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:08,717 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:08,718 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:09,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934605982] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:14:09,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:14:09,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 52 [2024-11-27 20:14:09,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074011676] [2024-11-27 20:14:09,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:14:09,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-27 20:14:09,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:09,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-27 20:14:09,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=427, Invalid=2329, Unknown=0, NotChecked=0, Total=2756 [2024-11-27 20:14:09,827 INFO L87 Difference]: Start difference. First operand 114 states and 121 transitions. Second operand has 53 states, 52 states have (on average 3.5961538461538463) internal successors, (187), 53 states have internal predecessors, (187), 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) [2024-11-27 20:14:13,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:13,512 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2024-11-27 20:14:13,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-27 20:14:13,512 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 3.5961538461538463) internal successors, (187), 53 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-27 20:14:13,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:13,513 INFO L225 Difference]: With dead ends: 134 [2024-11-27 20:14:13,513 INFO L226 Difference]: Without dead ends: 133 [2024-11-27 20:14:13,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2268 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1969, Invalid=6403, Unknown=0, NotChecked=0, Total=8372 [2024-11-27 20:14:13,517 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 208 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:13,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 35 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:14:13,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-27 20:14:13,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2024-11-27 20:14:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 128 states have (on average 1.0859375) internal successors, (139), 131 states have internal predecessors, (139), 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) [2024-11-27 20:14:13,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 139 transitions. [2024-11-27 20:14:13,541 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 139 transitions. Word has length 63 [2024-11-27 20:14:13,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:13,541 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 139 transitions. [2024-11-27 20:14:13,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 3.5961538461538463) internal successors, (187), 53 states have internal predecessors, (187), 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) [2024-11-27 20:14:13,542 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 139 transitions. [2024-11-27 20:14:13,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-27 20:14:13,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:13,543 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2024-11-27 20:14:13,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:14:13,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 20:14:13,744 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:14:13,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:13,744 INFO L85 PathProgramCache]: Analyzing trace with hash 514744560, now seen corresponding path program 2 times [2024-11-27 20:14:13,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:13,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71546273] [2024-11-27 20:14:13,745 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:14:13,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:13,763 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:14:13,763 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:13,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:13,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71546273] [2024-11-27 20:14:13,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71546273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:13,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465486383] [2024-11-27 20:14:13,962 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:14:13,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:13,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:13,966 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:14:13,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:14:14,020 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:14:14,020 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:14,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:14:14,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:14,163 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:14,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:14,358 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:14,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465486383] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:14:14,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:14:14,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 15 [2024-11-27 20:14:14,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262006586] [2024-11-27 20:14:14,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:14:14,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:14:14,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:14,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:14:14,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:14:14,361 INFO L87 Difference]: Start difference. First operand 132 states and 139 transitions. Second operand has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 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) [2024-11-27 20:14:14,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:14,866 INFO L93 Difference]: Finished difference Result 155 states and 162 transitions. [2024-11-27 20:14:14,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-27 20:14:14,867 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-27 20:14:14,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:14,869 INFO L225 Difference]: With dead ends: 155 [2024-11-27 20:14:14,869 INFO L226 Difference]: Without dead ends: 153 [2024-11-27 20:14:14,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=395, Invalid=727, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 20:14:14,872 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 115 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:14,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 47 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:14:14,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-27 20:14:14,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 149. [2024-11-27 20:14:14,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 145 states have (on average 1.0620689655172413) internal successors, (154), 148 states have internal predecessors, (154), 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) [2024-11-27 20:14:14,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 154 transitions. [2024-11-27 20:14:14,888 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 154 transitions. Word has length 67 [2024-11-27 20:14:14,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:14,889 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 154 transitions. [2024-11-27 20:14:14,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 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) [2024-11-27 20:14:14,889 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 154 transitions. [2024-11-27 20:14:14,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-27 20:14:14,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:14,891 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 1, 1, 1] [2024-11-27 20:14:14,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 20:14:15,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 20:14:15,091 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:14:15,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:15,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1323130418, now seen corresponding path program 3 times [2024-11-27 20:14:15,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:15,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515644815] [2024-11-27 20:14:15,092 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:14:15,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:15,149 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-27 20:14:15,151 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:16,033 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:16,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:16,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515644815] [2024-11-27 20:14:16,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515644815] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:16,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903545802] [2024-11-27 20:14:16,034 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:14:16,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:16,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:16,037 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:14:16,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:14:16,118 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-27 20:14:16,118 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:16,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:14:16,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:17,240 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:17,240 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:18,826 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:18,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903545802] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:14:18,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:14:18,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 18] total 54 [2024-11-27 20:14:18,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032733791] [2024-11-27 20:14:18,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:14:18,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-27 20:14:18,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:18,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-27 20:14:18,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=2703, Unknown=0, NotChecked=0, Total=2970 [2024-11-27 20:14:18,832 INFO L87 Difference]: Start difference. First operand 149 states and 154 transitions. Second operand has 55 states, 54 states have (on average 5.018518518518518) internal successors, (271), 55 states have internal predecessors, (271), 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) [2024-11-27 20:14:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:27,211 INFO L93 Difference]: Finished difference Result 204 states and 219 transitions. [2024-11-27 20:14:27,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-27 20:14:27,212 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 5.018518518518518) internal successors, (271), 55 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-27 20:14:27,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:27,213 INFO L225 Difference]: With dead ends: 204 [2024-11-27 20:14:27,213 INFO L226 Difference]: Without dead ends: 202 [2024-11-27 20:14:27,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4055 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=3324, Invalid=13446, Unknown=0, NotChecked=0, Total=16770 [2024-11-27 20:14:27,218 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 518 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:27,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 35 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:14:27,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-27 20:14:27,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2024-11-27 20:14:27,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 195 states have (on average 1.0717948717948718) internal successors, (209), 198 states have internal predecessors, (209), 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) [2024-11-27 20:14:27,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 209 transitions. [2024-11-27 20:14:27,234 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 209 transitions. Word has length 91 [2024-11-27 20:14:27,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:27,234 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 209 transitions. [2024-11-27 20:14:27,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 5.018518518518518) internal successors, (271), 55 states have internal predecessors, (271), 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) [2024-11-27 20:14:27,234 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 209 transitions. [2024-11-27 20:14:27,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 20:14:27,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:27,237 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1] [2024-11-27 20:14:27,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 20:14:27,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:27,437 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:14:27,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:27,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2030660030, now seen corresponding path program 4 times [2024-11-27 20:14:27,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:27,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129611683] [2024-11-27 20:14:27,438 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:14:27,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:27,462 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:14:27,462 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:29,060 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 0 proven. 549 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:29,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:29,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129611683] [2024-11-27 20:14:29,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129611683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:29,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028760857] [2024-11-27 20:14:29,061 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:14:29,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:29,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:29,064 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:14:29,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:14:29,134 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:14:29,134 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:29,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 20:14:29,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:31,597 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 0 proven. 549 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:31,597 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:33,655 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 0 proven. 549 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:33,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028760857] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:14:33,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:14:33,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 28, 28] total 89 [2024-11-27 20:14:33,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174310593] [2024-11-27 20:14:33,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:14:33,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2024-11-27 20:14:33,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:33,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2024-11-27 20:14:33,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1253, Invalid=6757, Unknown=0, NotChecked=0, Total=8010 [2024-11-27 20:14:33,660 INFO L87 Difference]: Start difference. First operand 199 states and 209 transitions. Second operand has 90 states, 89 states have (on average 4.292134831460674) internal successors, (382), 90 states have internal predecessors, (382), 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) [2024-11-27 20:14:40,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:40,069 INFO L93 Difference]: Finished difference Result 257 states and 274 transitions. [2024-11-27 20:14:40,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-27 20:14:40,070 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 89 states have (on average 4.292134831460674) internal successors, (382), 90 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-11-27 20:14:40,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:40,072 INFO L225 Difference]: With dead ends: 257 [2024-11-27 20:14:40,072 INFO L226 Difference]: Without dead ends: 256 [2024-11-27 20:14:40,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5246 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=5183, Invalid=15409, Unknown=0, NotChecked=0, Total=20592 [2024-11-27 20:14:40,078 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 883 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:40,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 287 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:14:40,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-27 20:14:40,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 249. [2024-11-27 20:14:40,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 245 states have (on average 1.0816326530612246) internal successors, (265), 248 states have internal predecessors, (265), 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) [2024-11-27 20:14:40,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 265 transitions. [2024-11-27 20:14:40,098 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 265 transitions. Word has length 128 [2024-11-27 20:14:40,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:40,098 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 265 transitions. [2024-11-27 20:14:40,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 89 states have (on average 4.292134831460674) internal successors, (382), 90 states have internal predecessors, (382), 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) [2024-11-27 20:14:40,099 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 265 transitions. [2024-11-27 20:14:40,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-27 20:14:40,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:40,100 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1] [2024-11-27 20:14:40,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 20:14:40,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:40,301 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:14:40,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:40,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1379227824, now seen corresponding path program 3 times [2024-11-27 20:14:40,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:40,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032751782] [2024-11-27 20:14:40,301 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:14:40,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:40,333 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:14:40,333 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:40,478 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 324 proven. 48 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2024-11-27 20:14:40,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:40,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032751782] [2024-11-27 20:14:40,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032751782] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:40,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612748027] [2024-11-27 20:14:40,479 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:14:40,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:40,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:40,483 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:14:40,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:14:40,550 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:14:40,551 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:40,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:14:40,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:40,854 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 328 proven. 51 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-27 20:14:40,854 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:41,475 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 328 proven. 51 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-27 20:14:41,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612748027] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:14:41,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:14:41,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 26 [2024-11-27 20:14:41,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094535026] [2024-11-27 20:14:41,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:14:41,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 20:14:41,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:41,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 20:14:41,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-11-27 20:14:41,478 INFO L87 Difference]: Start difference. First operand 249 states and 265 transitions. Second operand has 27 states, 26 states have (on average 5.615384615384615) internal successors, (146), 27 states have internal predecessors, (146), 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) [2024-11-27 20:14:41,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:41,843 INFO L93 Difference]: Finished difference Result 249 states and 265 transitions. [2024-11-27 20:14:41,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:14:41,844 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 5.615384615384615) internal successors, (146), 27 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2024-11-27 20:14:41,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:41,845 INFO L225 Difference]: With dead ends: 249 [2024-11-27 20:14:41,845 INFO L226 Difference]: Without dead ends: 248 [2024-11-27 20:14:41,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 20:14:41,847 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 133 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:41,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 72 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:14:41,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-27 20:14:41,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2024-11-27 20:14:41,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 245 states have (on average 1.0489795918367346) internal successors, (257), 247 states have internal predecessors, (257), 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) [2024-11-27 20:14:41,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 257 transitions. [2024-11-27 20:14:41,876 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 257 transitions. Word has length 145 [2024-11-27 20:14:41,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:41,876 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 257 transitions. [2024-11-27 20:14:41,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.615384615384615) internal successors, (146), 27 states have internal predecessors, (146), 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) [2024-11-27 20:14:41,877 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 257 transitions. [2024-11-27 20:14:41,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:14:41,878 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:41,879 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1] [2024-11-27 20:14:41,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 20:14:42,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-27 20:14:42,079 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:14:42,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:42,080 INFO L85 PathProgramCache]: Analyzing trace with hash 332409990, now seen corresponding path program 2 times [2024-11-27 20:14:42,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:42,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267144161] [2024-11-27 20:14:42,080 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:14:42,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:42,105 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:14:42,105 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:42,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:42,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267144161] [2024-11-27 20:14:42,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267144161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:42,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402430589] [2024-11-27 20:14:42,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:14:42,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:42,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:42,485 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:14:42,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:14:42,574 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:14:42,574 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:42,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:14:42,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:42,862 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:42,862 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:43,397 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:43,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402430589] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:14:43,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:14:43,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2024-11-27 20:14:43,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475426969] [2024-11-27 20:14:43,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:14:43,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 20:14:43,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:43,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 20:14:43,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:14:43,400 INFO L87 Difference]: Start difference. First operand 248 states and 257 transitions. Second operand has 28 states, 27 states have (on average 11.962962962962964) internal successors, (323), 28 states have internal predecessors, (323), 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) [2024-11-27 20:14:43,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:43,695 INFO L93 Difference]: Finished difference Result 366 states and 379 transitions. [2024-11-27 20:14:43,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 20:14:43,696 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 11.962962962962964) internal successors, (323), 28 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2024-11-27 20:14:43,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:43,698 INFO L225 Difference]: With dead ends: 366 [2024-11-27 20:14:43,698 INFO L226 Difference]: Without dead ends: 365 [2024-11-27 20:14:43,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:14:43,701 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 49 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:43,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 195 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:14:43,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-27 20:14:43,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 347. [2024-11-27 20:14:43,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 344 states have (on average 1.061046511627907) internal successors, (365), 346 states have internal predecessors, (365), 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) [2024-11-27 20:14:43,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 365 transitions. [2024-11-27 20:14:43,739 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 365 transitions. Word has length 162 [2024-11-27 20:14:43,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:43,739 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 365 transitions. [2024-11-27 20:14:43,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 11.962962962962964) internal successors, (323), 28 states have internal predecessors, (323), 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) [2024-11-27 20:14:43,740 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 365 transitions. [2024-11-27 20:14:43,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-27 20:14:43,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:43,743 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 1, 1, 1] [2024-11-27 20:14:43,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 20:14:43,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 20:14:43,943 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:14:43,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:43,944 INFO L85 PathProgramCache]: Analyzing trace with hash -461146418, now seen corresponding path program 4 times [2024-11-27 20:14:43,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:43,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822722316] [2024-11-27 20:14:43,945 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:14:43,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:44,001 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:14:44,001 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:47,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 0 proven. 1337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:47,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:47,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822722316] [2024-11-27 20:14:47,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822722316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:47,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112563717] [2024-11-27 20:14:47,471 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:14:47,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:47,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:47,474 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:14:47,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:14:47,564 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:14:47,564 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:47,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 20:14:47,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:50,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 0 proven. 1337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:50,718 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:53,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 0 proven. 1337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:53,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112563717] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:14:53,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:14:53,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 30, 30] total 115 [2024-11-27 20:14:53,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223645988] [2024-11-27 20:14:53,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:14:53,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2024-11-27 20:14:53,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:53,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2024-11-27 20:14:53,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1451, Invalid=11889, Unknown=0, NotChecked=0, Total=13340 [2024-11-27 20:14:53,930 INFO L87 Difference]: Start difference. First operand 347 states and 365 transitions. Second operand has 116 states, 115 states have (on average 5.069565217391304) internal successors, (583), 116 states have internal predecessors, (583), 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) [2024-11-27 20:15:11,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:11,484 INFO L93 Difference]: Finished difference Result 397 states and 422 transitions. [2024-11-27 20:15:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2024-11-27 20:15:11,485 INFO L78 Accepts]: Start accepts. Automaton has has 116 states, 115 states have (on average 5.069565217391304) internal successors, (583), 116 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2024-11-27 20:15:11,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:15:11,487 INFO L225 Difference]: With dead ends: 397 [2024-11-27 20:15:11,487 INFO L226 Difference]: Without dead ends: 396 [2024-11-27 20:15:11,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11121 ImplicationChecksByTransitivity, 23.0s TimeCoverageRelationStatistics Valid=10952, Invalid=34630, Unknown=0, NotChecked=0, Total=45582 [2024-11-27 20:15:11,493 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2249 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2249 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:15:11,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2249 Valid, 269 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 20:15:11,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-27 20:15:11,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 393. [2024-11-27 20:15:11,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 390 states have (on average 1.0435897435897437) internal successors, (407), 392 states have internal predecessors, (407), 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) [2024-11-27 20:15:11,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 407 transitions. [2024-11-27 20:15:11,545 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 407 transitions. Word has length 195 [2024-11-27 20:15:11,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:15:11,546 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 407 transitions. [2024-11-27 20:15:11,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 115 states have (on average 5.069565217391304) internal successors, (583), 116 states have internal predecessors, (583), 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) [2024-11-27 20:15:11,546 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 407 transitions. [2024-11-27 20:15:11,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-27 20:15:11,550 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:15:11,550 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 1, 1, 1] [2024-11-27 20:15:11,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 20:15:11,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-27 20:15:11,751 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:15:11,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:11,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1316158228, now seen corresponding path program 5 times [2024-11-27 20:15:11,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:11,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854890572] [2024-11-27 20:15:11,752 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:15:11,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:11,839 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-11-27 20:15:11,839 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:15:15,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2151 backedges. 0 proven. 2151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:15,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:15:15,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854890572] [2024-11-27 20:15:15,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854890572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:15,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667042026] [2024-11-27 20:15:15,225 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:15:15,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:15,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:15,227 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:15,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 20:15:15,355 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-11-27 20:15:15,356 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:15:15,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-27 20:15:15,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:20,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2151 backedges. 0 proven. 2151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:20,763 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:26,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2151 backedges. 0 proven. 2151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:26,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667042026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:26,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:26,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55, 55] total 163 [2024-11-27 20:15:26,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932018811] [2024-11-27 20:15:26,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:26,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 164 states [2024-11-27 20:15:26,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:15:26,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2024-11-27 20:15:26,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5596, Invalid=21136, Unknown=0, NotChecked=0, Total=26732 [2024-11-27 20:15:26,564 INFO L87 Difference]: Start difference. First operand 393 states and 407 transitions. Second operand has 164 states, 163 states have (on average 4.4969325153374236) internal successors, (733), 164 states have internal predecessors, (733), 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) [2024-11-27 20:15:46,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:46,322 INFO L93 Difference]: Finished difference Result 493 states and 516 transitions. [2024-11-27 20:15:46,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-11-27 20:15:46,323 INFO L78 Accepts]: Start accepts. Automaton has has 164 states, 163 states have (on average 4.4969325153374236) internal successors, (733), 164 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2024-11-27 20:15:46,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:15:46,326 INFO L225 Difference]: With dead ends: 493 [2024-11-27 20:15:46,326 INFO L226 Difference]: Without dead ends: 492 [2024-11-27 20:15:46,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20792 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=15905, Invalid=45351, Unknown=0, NotChecked=0, Total=61256 [2024-11-27 20:15:46,330 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 1610 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1610 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:15:46,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1610 Valid, 912 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:15:46,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-27 20:15:46,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 482. [2024-11-27 20:15:46,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 479 states have (on average 1.0396659707724425) internal successors, (498), 481 states have internal predecessors, (498), 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) [2024-11-27 20:15:46,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 498 transitions. [2024-11-27 20:15:46,389 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 498 transitions. Word has length 245 [2024-11-27 20:15:46,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:15:46,390 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 498 transitions. [2024-11-27 20:15:46,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 164 states, 163 states have (on average 4.4969325153374236) internal successors, (733), 164 states have internal predecessors, (733), 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) [2024-11-27 20:15:46,390 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 498 transitions. [2024-11-27 20:15:46,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-27 20:15:46,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:15:46,396 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1] [2024-11-27 20:15:46,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-27 20:15:46,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 20:15:46,600 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:15:46,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:46,601 INFO L85 PathProgramCache]: Analyzing trace with hash 904824774, now seen corresponding path program 3 times [2024-11-27 20:15:46,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:46,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870875143] [2024-11-27 20:15:46,601 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:15:46,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:46,685 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-11-27 20:15:46,685 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:15:47,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4329 backedges. 0 proven. 4329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:47,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:15:47,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870875143] [2024-11-27 20:15:47,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870875143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:47,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543897467] [2024-11-27 20:15:47,948 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:15:47,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:47,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:47,950 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:47,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:15:48,114 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-11-27 20:15:48,114 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:15:48,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 20:15:48,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4329 backedges. 0 proven. 4329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:48,636 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:50,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4329 backedges. 0 proven. 4329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:50,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543897467] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:50,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:50,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 55 [2024-11-27 20:15:50,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402711220] [2024-11-27 20:15:50,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:50,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-27 20:15:50,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:15:50,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-27 20:15:50,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2024-11-27 20:15:50,335 INFO L87 Difference]: Start difference. First operand 482 states and 498 transitions. Second operand has 56 states, 55 states have (on average 12.49090909090909) internal successors, (687), 56 states have internal predecessors, (687), 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) [2024-11-27 20:15:51,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:51,070 INFO L93 Difference]: Finished difference Result 753 states and 780 transitions. [2024-11-27 20:15:51,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-27 20:15:51,071 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 12.49090909090909) internal successors, (687), 56 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 344 [2024-11-27 20:15:51,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:15:51,076 INFO L225 Difference]: With dead ends: 753 [2024-11-27 20:15:51,076 INFO L226 Difference]: Without dead ends: 752 [2024-11-27 20:15:51,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2024-11-27 20:15:51,078 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 126 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:15:51,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 389 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:15:51,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2024-11-27 20:15:51,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 711. [2024-11-27 20:15:51,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 708 states have (on average 1.0621468926553672) internal successors, (752), 710 states have internal predecessors, (752), 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) [2024-11-27 20:15:51,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 752 transitions. [2024-11-27 20:15:51,153 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 752 transitions. Word has length 344 [2024-11-27 20:15:51,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:15:51,154 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 752 transitions. [2024-11-27 20:15:51,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 12.49090909090909) internal successors, (687), 56 states have internal predecessors, (687), 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) [2024-11-27 20:15:51,155 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 752 transitions. [2024-11-27 20:15:51,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-27 20:15:51,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:15:51,158 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 1, 1, 1] [2024-11-27 20:15:51,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-27 20:15:51,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 20:15:51,359 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:15:51,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:51,360 INFO L85 PathProgramCache]: Analyzing trace with hash 458208544, now seen corresponding path program 5 times [2024-11-27 20:15:51,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:51,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951962954] [2024-11-27 20:15:51,360 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:15:51,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:51,582 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2024-11-27 20:15:51,582 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:16:00,016 INFO L134 CoverageAnalysis]: Checked inductivity of 5597 backedges. 0 proven. 5597 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:16:00,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:16:00,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951962954] [2024-11-27 20:16:00,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951962954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:16:00,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120225307] [2024-11-27 20:16:00,017 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:16:00,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:16:00,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:00,020 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:16:00,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 20:16:00,210 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2024-11-27 20:16:00,210 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:16:00,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-27 20:16:00,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:09,949 INFO L134 CoverageAnalysis]: Checked inductivity of 5597 backedges. 0 proven. 5597 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:16:09,949 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:16:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5597 backedges. 0 proven. 5597 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:16:20,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120225307] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:16:20,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:16:20,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 60, 60] total 208 [2024-11-27 20:16:20,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290789334] [2024-11-27 20:16:20,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:16:20,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 209 states [2024-11-27 20:16:20,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:16:20,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 209 interpolants. [2024-11-27 20:16:20,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5291, Invalid=38181, Unknown=0, NotChecked=0, Total=43472 [2024-11-27 20:16:20,829 INFO L87 Difference]: Start difference. First operand 711 states and 752 transitions. Second operand has 209 states, 208 states have (on average 5.615384615384615) internal successors, (1168), 209 states have internal predecessors, (1168), 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) [2024-11-27 20:17:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:22,149 INFO L93 Difference]: Finished difference Result 789 states and 841 transitions. [2024-11-27 20:17:22,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2024-11-27 20:17:22,150 INFO L78 Accepts]: Start accepts. Automaton has has 209 states, 208 states have (on average 5.615384615384615) internal successors, (1168), 209 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-11-27 20:17:22,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:22,155 INFO L225 Difference]: With dead ends: 789 [2024-11-27 20:17:22,155 INFO L226 Difference]: Without dead ends: 788 [2024-11-27 20:17:22,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1012 GetRequests, 661 SyntacticMatches, 0 SemanticMatches, 351 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28854 ImplicationChecksByTransitivity, 79.9s TimeCoverageRelationStatistics Valid=30248, Invalid=94008, Unknown=0, NotChecked=0, Total=124256 [2024-11-27 20:17:22,162 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 9379 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 2152 mSolverCounterSat, 1782 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9379 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 3934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1782 IncrementalHoareTripleChecker+Valid, 2152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:22,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9379 Valid, 1962 Invalid, 3934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1782 Valid, 2152 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 20:17:22,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2024-11-27 20:17:22,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 783. [2024-11-27 20:17:22,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 780 states have (on average 1.0397435897435898) internal successors, (811), 782 states have internal predecessors, (811), 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) [2024-11-27 20:17:22,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 811 transitions. [2024-11-27 20:17:22,255 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 811 transitions. Word has length 390 [2024-11-27 20:17:22,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:22,256 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 811 transitions. [2024-11-27 20:17:22,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 209 states, 208 states have (on average 5.615384615384615) internal successors, (1168), 209 states have internal predecessors, (1168), 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) [2024-11-27 20:17:22,257 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 811 transitions. [2024-11-27 20:17:22,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-27 20:17:22,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:22,261 INFO L218 NwaCegarLoop]: trace histogram [37, 37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 1, 1, 1] [2024-11-27 20:17:22,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-27 20:17:22,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 20:17:22,462 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:17:22,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:22,464 INFO L85 PathProgramCache]: Analyzing trace with hash 66448428, now seen corresponding path program 6 times [2024-11-27 20:17:22,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:22,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813881070] [2024-11-27 20:17:22,464 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:17:22,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:22,726 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2024-11-27 20:17:22,726 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:17:34,562 INFO L134 CoverageAnalysis]: Checked inductivity of 8514 backedges. 0 proven. 8514 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:17:34,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:34,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813881070] [2024-11-27 20:17:34,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813881070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:17:34,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980069265] [2024-11-27 20:17:34,563 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:17:34,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:34,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:34,565 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:34,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 20:17:34,870 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2024-11-27 20:17:34,870 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:17:34,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 111 conjuncts are in the unsatisfiable core [2024-11-27 20:17:34,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:50,925 INFO L134 CoverageAnalysis]: Checked inductivity of 8514 backedges. 0 proven. 8514 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:17:50,925 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:18:11,845 INFO L134 CoverageAnalysis]: Checked inductivity of 8514 backedges. 0 proven. 8514 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:11,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980069265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:18:11,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:18:11,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 109, 109] total 325 [2024-11-27 20:18:11,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090703408] [2024-11-27 20:18:11,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:18:11,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 326 states [2024-11-27 20:18:11,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:11,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 326 interpolants. [2024-11-27 20:18:11,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21562, Invalid=84388, Unknown=0, NotChecked=0, Total=105950 [2024-11-27 20:18:11,863 INFO L87 Difference]: Start difference. First operand 783 states and 811 transitions. Second operand has 326 states, 325 states have (on average 4.415384615384616) internal successors, (1435), 326 states have internal predecessors, (1435), 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) [2024-11-27 20:20:14,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:14,840 INFO L93 Difference]: Finished difference Result 969 states and 1016 transitions. [2024-11-27 20:20:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 215 states. [2024-11-27 20:20:14,841 INFO L78 Accepts]: Start accepts. Automaton has has 326 states, 325 states have (on average 4.415384615384616) internal successors, (1435), 326 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 479 [2024-11-27 20:20:14,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:14,846 INFO L225 Difference]: With dead ends: 969 [2024-11-27 20:20:14,846 INFO L226 Difference]: Without dead ends: 968 [2024-11-27 20:20:14,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1239 GetRequests, 741 SyntacticMatches, 0 SemanticMatches, 498 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86573 ImplicationChecksByTransitivity, 155.2s TimeCoverageRelationStatistics Valid=63884, Invalid=185616, Unknown=0, NotChecked=0, Total=249500 [2024-11-27 20:20:14,860 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 6492 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 1394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6492 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 3235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1394 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:14,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6492 Valid, 1787 Invalid, 3235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1394 Valid, 1841 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 20:20:14,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-11-27 20:20:14,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 950. [2024-11-27 20:20:14,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 947 states have (on average 1.0348468848996832) internal successors, (980), 949 states have internal predecessors, (980), 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) [2024-11-27 20:20:14,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 980 transitions. [2024-11-27 20:20:14,976 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 980 transitions. Word has length 479 [2024-11-27 20:20:14,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:14,976 INFO L471 AbstractCegarLoop]: Abstraction has 950 states and 980 transitions. [2024-11-27 20:20:14,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 326 states, 325 states have (on average 4.415384615384616) internal successors, (1435), 326 states have internal predecessors, (1435), 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) [2024-11-27 20:20:14,977 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 980 transitions. [2024-11-27 20:20:14,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2024-11-27 20:20:14,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:14,981 INFO L218 NwaCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1] [2024-11-27 20:20:14,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-27 20:20:15,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-27 20:20:15,181 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:20:15,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:15,182 INFO L85 PathProgramCache]: Analyzing trace with hash 101477958, now seen corresponding path program 4 times [2024-11-27 20:20:15,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:15,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758825994] [2024-11-27 20:20:15,182 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:20:15,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:15,274 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:20:15,274 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:20:19,707 INFO L134 CoverageAnalysis]: Checked inductivity of 18819 backedges. 0 proven. 18819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:20:19,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:19,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758825994] [2024-11-27 20:20:19,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758825994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:20:19,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571017822] [2024-11-27 20:20:19,709 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:20:19,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:19,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:20:19,711 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:20:19,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 20:20:19,985 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:20:19,985 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:20:19,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-27 20:20:20,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:20:20,904 INFO L134 CoverageAnalysis]: Checked inductivity of 18819 backedges. 0 proven. 18819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:20:20,904 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:20:26,454 INFO L134 CoverageAnalysis]: Checked inductivity of 18819 backedges. 0 proven. 18819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:20:26,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571017822] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:20:26,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:20:26,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 111 [2024-11-27 20:20:26,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561216119] [2024-11-27 20:20:26,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:20:26,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2024-11-27 20:20:26,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:26,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2024-11-27 20:20:26,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2024-11-27 20:20:26,462 INFO L87 Difference]: Start difference. First operand 950 states and 980 transitions. Second operand has 112 states, 111 states have (on average 12.747747747747749) internal successors, (1415), 112 states have internal predecessors, (1415), 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) [2024-11-27 20:20:28,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:28,454 INFO L93 Difference]: Finished difference Result 1527 states and 1582 transitions. [2024-11-27 20:20:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-11-27 20:20:28,454 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 111 states have (on average 12.747747747747749) internal successors, (1415), 112 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 708 [2024-11-27 20:20:28,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:28,461 INFO L225 Difference]: With dead ends: 1527 [2024-11-27 20:20:28,461 INFO L226 Difference]: Without dead ends: 1526 [2024-11-27 20:20:28,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1470 GetRequests, 1360 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2024-11-27 20:20:28,464 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 301 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:28,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 772 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:20:28,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2024-11-27 20:20:28,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1439. [2024-11-27 20:20:28,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1436 states have (on average 1.0626740947075208) internal successors, (1526), 1438 states have internal predecessors, (1526), 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) [2024-11-27 20:20:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1526 transitions. [2024-11-27 20:20:28,630 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1526 transitions. Word has length 708 [2024-11-27 20:20:28,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:28,632 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 1526 transitions. [2024-11-27 20:20:28,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 111 states have (on average 12.747747747747749) internal successors, (1415), 112 states have internal predecessors, (1415), 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) [2024-11-27 20:20:28,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1526 transitions. [2024-11-27 20:20:28,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2024-11-27 20:20:28,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:28,640 INFO L218 NwaCegarLoop]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 59, 59, 59, 1, 1, 1] [2024-11-27 20:20:28,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-27 20:20:28,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 20:20:28,844 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:20:28,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:28,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1798309472, now seen corresponding path program 6 times [2024-11-27 20:20:28,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:28,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679840194] [2024-11-27 20:20:28,845 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:20:28,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:28,942 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2024-11-27 20:20:28,942 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:20:30,643 INFO L134 CoverageAnalysis]: Checked inductivity of 22892 backedges. 6558 proven. 605 refuted. 0 times theorem prover too weak. 15729 trivial. 0 not checked. [2024-11-27 20:20:30,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:30,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679840194] [2024-11-27 20:20:30,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679840194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:20:30,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89141885] [2024-11-27 20:20:30,644 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:20:30,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:30,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:20:30,647 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:20:30,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 20:20:30,917 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2024-11-27 20:20:30,917 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:20:30,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 20:20:30,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:20:32,768 INFO L134 CoverageAnalysis]: Checked inductivity of 22892 backedges. 6558 proven. 605 refuted. 0 times theorem prover too weak. 15729 trivial. 0 not checked. [2024-11-27 20:20:32,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:20:36,697 INFO L134 CoverageAnalysis]: Checked inductivity of 22892 backedges. 6558 proven. 605 refuted. 0 times theorem prover too weak. 15729 trivial. 0 not checked. [2024-11-27 20:20:36,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89141885] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:20:36,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:20:36,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 78 [2024-11-27 20:20:36,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224926448] [2024-11-27 20:20:36,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:20:36,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2024-11-27 20:20:36,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:36,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2024-11-27 20:20:36,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=454, Invalid=5708, Unknown=0, NotChecked=0, Total=6162 [2024-11-27 20:20:36,702 INFO L87 Difference]: Start difference. First operand 1439 states and 1526 transitions. Second operand has 79 states, 78 states have (on average 4.487179487179487) internal successors, (350), 79 states have internal predecessors, (350), 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) [2024-11-27 20:20:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:39,308 INFO L93 Difference]: Finished difference Result 1439 states and 1526 transitions. [2024-11-27 20:20:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:20:39,309 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 78 states have (on average 4.487179487179487) internal successors, (350), 79 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 780 [2024-11-27 20:20:39,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:39,313 INFO L225 Difference]: With dead ends: 1439 [2024-11-27 20:20:39,313 INFO L226 Difference]: Without dead ends: 1438 [2024-11-27 20:20:39,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1596 GetRequests, 1513 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1167 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=824, Invalid=6316, Unknown=0, NotChecked=0, Total=7140 [2024-11-27 20:20:39,315 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 344 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:39,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 261 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:20:39,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-27 20:20:39,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1438. [2024-11-27 20:20:39,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1436 states have (on average 1.027158774373259) internal successors, (1475), 1437 states have internal predecessors, (1475), 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) [2024-11-27 20:20:39,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 1475 transitions. [2024-11-27 20:20:39,593 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 1475 transitions. Word has length 780 [2024-11-27 20:20:39,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:39,594 INFO L471 AbstractCegarLoop]: Abstraction has 1438 states and 1475 transitions. [2024-11-27 20:20:39,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 78 states have (on average 4.487179487179487) internal successors, (350), 79 states have internal predecessors, (350), 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) [2024-11-27 20:20:39,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 1475 transitions. [2024-11-27 20:20:39,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 948 [2024-11-27 20:20:39,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:39,604 INFO L218 NwaCegarLoop]: trace histogram [73, 73, 73, 73, 73, 73, 73, 73, 72, 72, 72, 72, 72, 1, 1, 1] [2024-11-27 20:20:39,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-27 20:20:39,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 20:20:39,805 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-27 20:20:39,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:39,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1512928596, now seen corresponding path program 7 times [2024-11-27 20:20:39,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:39,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765523533] [2024-11-27 20:20:39,806 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:20:39,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 33876 backedges. 0 proven. 33876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:21:54,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:54,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765523533] [2024-11-27 20:21:54,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765523533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:21:54,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425966551] [2024-11-27 20:21:54,445 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:21:54,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:21:54,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:21:54,450 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:21:54,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc662323-527a-42a1-93b0-381842941ed0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 20:21:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:54,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 219 conjuncts are in the unsatisfiable core [2024-11-27 20:21:54,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:13,816 INFO L134 CoverageAnalysis]: Checked inductivity of 33876 backedges. 0 proven. 33876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:13,816 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:55,629 INFO L134 CoverageAnalysis]: Checked inductivity of 33876 backedges. 0 proven. 33876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:55,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425966551] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:55,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:55,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [286, 217, 217] total 718 [2024-11-27 20:24:55,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129450803] [2024-11-27 20:24:55,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:55,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 719 states [2024-11-27 20:24:55,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:55,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 719 interpolants. [2024-11-27 20:24:55,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62964, Invalid=453278, Unknown=0, NotChecked=0, Total=516242 [2024-11-27 20:24:55,657 INFO L87 Difference]: Start difference. First operand 1438 states and 1475 transitions. Second operand has 719 states, 718 states have (on average 3.9540389972144845) internal successors, (2839), 719 states have internal predecessors, (2839), 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)