./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound5.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_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/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_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/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_203586c7-5272-4714-9ebd-af887ad73c88/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 fe22a831ab045bcc67da4505e3ba36b6f549cf1239b349bc9f8fd22458d7fbac --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:30:09,267 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:30:09,375 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:30:09,380 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:30:09,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:30:09,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:30:09,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:30:09,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:30:09,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:30:09,423 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:30:09,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:30:09,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:30:09,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:30:09,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:30:09,425 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:30:09,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:30:09,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:30:09,425 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:30:09,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:30:09,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:30:09,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:30:09,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:30:09,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:30:09,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:30:09,426 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:30:09,426 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:30:09,426 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:30:09,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:30:09,426 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:30:09,426 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:30:09,427 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:30:09,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:30:09,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:30:09,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:30:09,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:30:09,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:30:09,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:30:09,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:30:09,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:30:09,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:30:09,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:30:09,429 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:30:09,429 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:30:09,429 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:30:09,429 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:30:09,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:30:09,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:30:09,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:30:09,430 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:30:09,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:30:09,430 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_203586c7-5272-4714-9ebd-af887ad73c88/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 -> fe22a831ab045bcc67da4505e3ba36b6f549cf1239b349bc9f8fd22458d7fbac [2024-11-28 04:30:09,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:30:09,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:30:09,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:30:09,778 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:30:09,778 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:30:09,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound5.c [2024-11-28 04:30:12,862 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/data/b755ce8a3/c30cb8cf5cfd4361a71e6905251870e1/FLAG21299aef6 [2024-11-28 04:30:13,212 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:30:13,212 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound5.c [2024-11-28 04:30:13,221 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/data/b755ce8a3/c30cb8cf5cfd4361a71e6905251870e1/FLAG21299aef6 [2024-11-28 04:30:13,241 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/data/b755ce8a3/c30cb8cf5cfd4361a71e6905251870e1 [2024-11-28 04:30:13,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:30:13,246 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:30:13,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:30:13,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:30:13,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:30:13,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69258df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13, skipping insertion in model container [2024-11-28 04:30:13,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,271 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:30:13,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:30:13,475 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:30:13,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:30:13,507 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:30:13,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13 WrapperNode [2024-11-28 04:30:13,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:30:13,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:30:13,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:30:13,509 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:30:13,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,542 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2024-11-28 04:30:13,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:30:13,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:30:13,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:30:13,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:30:13,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,556 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,581 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:30:13,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,585 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,596 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:30:13,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:30:13,603 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:30:13,603 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:30:13,604 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (1/1) ... [2024-11-28 04:30:13,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:30:13,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:13,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:30:13,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:30:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:30:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:30:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:30:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:30:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:30:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:30:13,757 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:30:13,759 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:30:14,006 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-11-28 04:30:14,007 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:30:14,018 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:30:14,018 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:30:14,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:30:14 BoogieIcfgContainer [2024-11-28 04:30:14,019 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:30:14,021 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:30:14,021 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:30:14,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:30:14,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:30:13" (1/3) ... [2024-11-28 04:30:14,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7290f033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:30:14, skipping insertion in model container [2024-11-28 04:30:14,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:30:13" (2/3) ... [2024-11-28 04:30:14,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7290f033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:30:14, skipping insertion in model container [2024-11-28 04:30:14,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:30:14" (3/3) ... [2024-11-28 04:30:14,029 INFO L128 eAbstractionObserver]: Analyzing ICFG prodbin-ll_unwindbound5.c [2024-11-28 04:30:14,046 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:30:14,047 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prodbin-ll_unwindbound5.c that has 2 procedures, 56 locations, 1 initial locations, 1 loop locations, and 18 error locations. [2024-11-28 04:30:14,101 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:30:14,113 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;@67805969, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:30:14,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-28 04:30:14,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 52 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:30:14,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 04:30:14,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:14,123 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:30:14,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:14,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash 889510409, now seen corresponding path program 1 times [2024-11-28 04:30:14,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:14,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666189191] [2024-11-28 04:30:14,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:14,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:14,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:14,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:14,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666189191] [2024-11-28 04:30:14,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666189191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:14,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:14,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:30:14,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995173009] [2024-11-28 04:30:14,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:14,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:30:14,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:14,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:30:14,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:30:14,282 INFO L87 Difference]: Start difference. First operand has 56 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 52 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:14,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:14,302 INFO L93 Difference]: Finished difference Result 108 states and 121 transitions. [2024-11-28 04:30:14,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:30:14,304 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-28 04:30:14,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:14,310 INFO L225 Difference]: With dead ends: 108 [2024-11-28 04:30:14,310 INFO L226 Difference]: Without dead ends: 49 [2024-11-28 04:30:14,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:30:14,316 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:14,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:14,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-28 04:30:14,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-28 04:30:14,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 29 states have (on average 1.6896551724137931) internal successors, (49), 46 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:14,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2024-11-28 04:30:14,360 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 6 [2024-11-28 04:30:14,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:14,360 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2024-11-28 04:30:14,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:14,361 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2024-11-28 04:30:14,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 04:30:14,361 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:14,361 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:30:14,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:30:14,362 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:14,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:14,363 INFO L85 PathProgramCache]: Analyzing trace with hash 889568326, now seen corresponding path program 1 times [2024-11-28 04:30:14,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:14,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35185805] [2024-11-28 04:30:14,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:14,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:14,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:14,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:14,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35185805] [2024-11-28 04:30:14,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35185805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:14,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:14,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:30:14,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394297901] [2024-11-28 04:30:14,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:14,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:30:14,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:14,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:30:14,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:14,466 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:14,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:14,532 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2024-11-28 04:30:14,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:30:14,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-28 04:30:14,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:14,534 INFO L225 Difference]: With dead ends: 49 [2024-11-28 04:30:14,534 INFO L226 Difference]: Without dead ends: 48 [2024-11-28 04:30:14,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:14,535 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 47 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:14,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 87 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:14,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-28 04:30:14,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-28 04:30:14,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 45 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2024-11-28 04:30:14,544 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 6 [2024-11-28 04:30:14,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:14,544 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2024-11-28 04:30:14,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:14,545 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2024-11-28 04:30:14,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 04:30:14,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:14,545 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:14,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:30:14,545 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:14,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:14,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1806814377, now seen corresponding path program 1 times [2024-11-28 04:30:14,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:14,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202819766] [2024-11-28 04:30:14,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:14,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:14,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:14,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202819766] [2024-11-28 04:30:14,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202819766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:14,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:14,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:30:14,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479830532] [2024-11-28 04:30:14,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:14,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:30:14,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:14,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:30:14,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:14,637 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:14,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:14,677 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2024-11-28 04:30:14,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:30:14,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2024-11-28 04:30:14,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:14,679 INFO L225 Difference]: With dead ends: 57 [2024-11-28 04:30:14,679 INFO L226 Difference]: Without dead ends: 52 [2024-11-28 04:30:14,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:14,680 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 3 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:14,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 132 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:14,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-28 04:30:14,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-28 04:30:14,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.5757575757575757) internal successors, (52), 49 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:14,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2024-11-28 04:30:14,686 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 7 [2024-11-28 04:30:14,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:14,687 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2024-11-28 04:30:14,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:14,687 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2024-11-28 04:30:14,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 04:30:14,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:14,687 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:14,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:30:14,688 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:14,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:14,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1181830318, now seen corresponding path program 1 times [2024-11-28 04:30:14,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:14,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915280339] [2024-11-28 04:30:14,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:14,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:14,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206602164] [2024-11-28 04:30:14,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:14,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:14,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:14,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:14,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:30:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:14,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:30:14,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:15,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:15,050 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:30:15,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:15,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915280339] [2024-11-28 04:30:15,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:15,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206602164] [2024-11-28 04:30:15,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206602164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:15,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:15,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:30:15,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448710823] [2024-11-28 04:30:15,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:15,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:30:15,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:15,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:30:15,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:15,055 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:15,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:15,304 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2024-11-28 04:30:15,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:30:15,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-28 04:30:15,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:15,306 INFO L225 Difference]: With dead ends: 75 [2024-11-28 04:30:15,306 INFO L226 Difference]: Without dead ends: 66 [2024-11-28 04:30:15,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:30:15,308 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 77 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:15,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 59 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:30:15,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-28 04:30:15,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2024-11-28 04:30:15,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 60 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:30:15,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 74 transitions. [2024-11-28 04:30:15,325 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 74 transitions. Word has length 9 [2024-11-28 04:30:15,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:15,325 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 74 transitions. [2024-11-28 04:30:15,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:15,326 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 74 transitions. [2024-11-28 04:30:15,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 04:30:15,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:15,326 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:15,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:30:15,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:15,527 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:15,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:15,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2017965749, now seen corresponding path program 1 times [2024-11-28 04:30:15,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:15,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021669280] [2024-11-28 04:30:15,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:15,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:15,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [153605304] [2024-11-28 04:30:15,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:15,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:15,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:15,546 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:15,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:30:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:15,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:30:15,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:15,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:15,771 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:30:15,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:15,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021669280] [2024-11-28 04:30:15,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:15,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153605304] [2024-11-28 04:30:15,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153605304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:15,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:15,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:30:15,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180521462] [2024-11-28 04:30:15,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:15,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:30:15,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:15,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:30:15,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:15,776 INFO L87 Difference]: Start difference. First operand 64 states and 74 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2024-11-28 04:30:15,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:15,977 INFO L93 Difference]: Finished difference Result 67 states and 76 transitions. [2024-11-28 04:30:15,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:30:15,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 [2024-11-28 04:30:15,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:15,978 INFO L225 Difference]: With dead ends: 67 [2024-11-28 04:30:15,978 INFO L226 Difference]: Without dead ends: 61 [2024-11-28 04:30:15,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:30:15,979 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 73 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:15,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 63 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:30:15,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-28 04:30:15,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-28 04:30:15,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 57 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:30:15,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2024-11-28 04:30:15,992 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 10 [2024-11-28 04:30:15,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:15,992 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2024-11-28 04:30:15,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2024-11-28 04:30:15,993 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2024-11-28 04:30:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 04:30:15,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:15,993 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:16,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:16,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:16,194 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:16,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:16,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1867571280, now seen corresponding path program 1 times [2024-11-28 04:30:16,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:16,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499036263] [2024-11-28 04:30:16,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:16,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:16,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:16,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:16,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499036263] [2024-11-28 04:30:16,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499036263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:16,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:16,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:16,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567073158] [2024-11-28 04:30:16,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:16,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:30:16,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:16,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:30:16,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:16,273 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2024-11-28 04:30:16,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:16,381 INFO L93 Difference]: Finished difference Result 88 states and 100 transitions. [2024-11-28 04:30:16,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:30:16,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 [2024-11-28 04:30:16,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:16,382 INFO L225 Difference]: With dead ends: 88 [2024-11-28 04:30:16,382 INFO L226 Difference]: Without dead ends: 87 [2024-11-28 04:30:16,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:16,385 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 19 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:16,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 76 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:16,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-28 04:30:16,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 78. [2024-11-28 04:30:16,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 73 states have internal predecessors, (88), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:16,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 94 transitions. [2024-11-28 04:30:16,403 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 94 transitions. Word has length 11 [2024-11-28 04:30:16,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:16,404 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 94 transitions. [2024-11-28 04:30:16,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2024-11-28 04:30:16,404 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 94 transitions. [2024-11-28 04:30:16,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:30:16,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:16,404 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:16,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:30:16,405 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:16,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:16,405 INFO L85 PathProgramCache]: Analyzing trace with hash 2060134893, now seen corresponding path program 1 times [2024-11-28 04:30:16,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:16,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590390354] [2024-11-28 04:30:16,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:16,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:16,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:16,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:16,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590390354] [2024-11-28 04:30:16,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590390354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:16,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:16,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:16,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777543646] [2024-11-28 04:30:16,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:16,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:30:16,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:16,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:30:16,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:16,575 INFO L87 Difference]: Start difference. First operand 78 states and 94 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-11-28 04:30:16,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:16,709 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2024-11-28 04:30:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:30:16,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 [2024-11-28 04:30:16,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:16,710 INFO L225 Difference]: With dead ends: 88 [2024-11-28 04:30:16,710 INFO L226 Difference]: Without dead ends: 87 [2024-11-28 04:30:16,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:16,711 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 18 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:16,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 79 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:16,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-28 04:30:16,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 78. [2024-11-28 04:30:16,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 73 states have internal predecessors, (86), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:16,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 92 transitions. [2024-11-28 04:30:16,722 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 92 transitions. Word has length 12 [2024-11-28 04:30:16,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:16,722 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 92 transitions. [2024-11-28 04:30:16,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-11-28 04:30:16,722 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 92 transitions. [2024-11-28 04:30:16,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-28 04:30:16,726 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:16,727 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:16,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:30:16,727 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:16,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1998791529, now seen corresponding path program 1 times [2024-11-28 04:30:16,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:16,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681545560] [2024-11-28 04:30:16,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:16,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:16,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:16,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681545560] [2024-11-28 04:30:16,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681545560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:16,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:16,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:16,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245650277] [2024-11-28 04:30:16,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:16,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:30:16,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:16,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:30:16,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:16,899 INFO L87 Difference]: Start difference. First operand 78 states and 92 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:16,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:16,966 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2024-11-28 04:30:16,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:30:16,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-11-28 04:30:16,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:16,968 INFO L225 Difference]: With dead ends: 79 [2024-11-28 04:30:16,968 INFO L226 Difference]: Without dead ends: 78 [2024-11-28 04:30:16,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:16,971 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 56 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:16,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 59 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:16,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-28 04:30:16,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-28 04:30:16,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 73 states have internal predecessors, (85), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:16,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2024-11-28 04:30:16,983 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 22 [2024-11-28 04:30:16,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:16,986 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2024-11-28 04:30:16,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:16,988 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2024-11-28 04:30:16,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 04:30:16,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:16,989 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:16,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:30:16,992 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:16,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:16,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1832995177, now seen corresponding path program 1 times [2024-11-28 04:30:16,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:16,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093843128] [2024-11-28 04:30:16,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:16,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:17,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:17,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:17,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093843128] [2024-11-28 04:30:17,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093843128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:17,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:17,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:17,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71226373] [2024-11-28 04:30:17,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:17,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:30:17,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:17,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:30:17,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:17,129 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:17,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:17,202 INFO L93 Difference]: Finished difference Result 79 states and 91 transitions. [2024-11-28 04:30:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:30:17,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-28 04:30:17,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:17,204 INFO L225 Difference]: With dead ends: 79 [2024-11-28 04:30:17,204 INFO L226 Difference]: Without dead ends: 78 [2024-11-28 04:30:17,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:17,205 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 54 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:17,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 60 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:17,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-28 04:30:17,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-28 04:30:17,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 73 states have internal predecessors, (84), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:17,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 90 transitions. [2024-11-28 04:30:17,215 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 90 transitions. Word has length 23 [2024-11-28 04:30:17,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:17,216 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 90 transitions. [2024-11-28 04:30:17,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:17,216 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 90 transitions. [2024-11-28 04:30:17,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:30:17,217 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:17,217 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:17,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:30:17,217 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:17,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:17,218 INFO L85 PathProgramCache]: Analyzing trace with hash -987966726, now seen corresponding path program 1 times [2024-11-28 04:30:17,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:17,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122823978] [2024-11-28 04:30:17,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:17,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:17,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:17,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:17,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122823978] [2024-11-28 04:30:17,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122823978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:17,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:17,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:17,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012333689] [2024-11-28 04:30:17,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:17,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:30:17,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:17,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:30:17,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:17,372 INFO L87 Difference]: Start difference. First operand 78 states and 90 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:17,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:17,468 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2024-11-28 04:30:17,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:30:17,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-28 04:30:17,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:17,469 INFO L225 Difference]: With dead ends: 82 [2024-11-28 04:30:17,469 INFO L226 Difference]: Without dead ends: 80 [2024-11-28 04:30:17,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:17,470 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 65 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:17,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 47 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:17,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-28 04:30:17,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2024-11-28 04:30:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 72 states have internal predecessors, (82), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:17,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2024-11-28 04:30:17,485 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 24 [2024-11-28 04:30:17,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:17,485 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 88 transitions. [2024-11-28 04:30:17,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:17,485 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions. [2024-11-28 04:30:17,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:30:17,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:17,485 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:17,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:30:17,490 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:17,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:17,490 INFO L85 PathProgramCache]: Analyzing trace with hash -562197341, now seen corresponding path program 1 times [2024-11-28 04:30:17,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:17,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679472084] [2024-11-28 04:30:17,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:17,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:17,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:17,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:17,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679472084] [2024-11-28 04:30:17,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679472084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:17,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:17,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:30:17,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936368413] [2024-11-28 04:30:17,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:17,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:30:17,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:17,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:30:17,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:17,654 INFO L87 Difference]: Start difference. First operand 77 states and 88 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:17,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:17,718 INFO L93 Difference]: Finished difference Result 77 states and 88 transitions. [2024-11-28 04:30:17,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:30:17,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-28 04:30:17,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:17,719 INFO L225 Difference]: With dead ends: 77 [2024-11-28 04:30:17,719 INFO L226 Difference]: Without dead ends: 75 [2024-11-28 04:30:17,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:30:17,720 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 51 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:17,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 32 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:17,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-28 04:30:17,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2024-11-28 04:30:17,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 59 states have (on average 1.305084745762712) internal successors, (77), 68 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:17,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2024-11-28 04:30:17,733 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 25 [2024-11-28 04:30:17,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:17,733 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2024-11-28 04:30:17,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:17,733 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2024-11-28 04:30:17,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 04:30:17,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:17,734 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:17,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:30:17,734 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:17,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:17,734 INFO L85 PathProgramCache]: Analyzing trace with hash -545037154, now seen corresponding path program 1 times [2024-11-28 04:30:17,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:17,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383565148] [2024-11-28 04:30:17,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:17,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:17,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:17,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383565148] [2024-11-28 04:30:17,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383565148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:17,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:17,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:17,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152036090] [2024-11-28 04:30:17,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:17,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:30:17,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:17,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:30:17,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:17,808 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:17,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:17,895 INFO L93 Difference]: Finished difference Result 78 states and 89 transitions. [2024-11-28 04:30:17,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:30:17,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-28 04:30:17,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:17,897 INFO L225 Difference]: With dead ends: 78 [2024-11-28 04:30:17,897 INFO L226 Difference]: Without dead ends: 77 [2024-11-28 04:30:17,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:17,899 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 54 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:17,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 53 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:17,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-28 04:30:17,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2024-11-28 04:30:17,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 71 states have internal predecessors, (80), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:17,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2024-11-28 04:30:17,910 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 26 [2024-11-28 04:30:17,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:17,910 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2024-11-28 04:30:17,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:17,910 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2024-11-28 04:30:17,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 04:30:17,911 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:17,911 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:17,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:30:17,912 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:17,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:17,913 INFO L85 PathProgramCache]: Analyzing trace with hash 283717499, now seen corresponding path program 1 times [2024-11-28 04:30:17,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:17,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828971076] [2024-11-28 04:30:17,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:17,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:18,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:18,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:18,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828971076] [2024-11-28 04:30:18,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828971076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:18,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:18,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:18,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8998076] [2024-11-28 04:30:18,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:18,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:30:18,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:18,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:30:18,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:18,007 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:18,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:18,074 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2024-11-28 04:30:18,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:30:18,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-28 04:30:18,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:18,075 INFO L225 Difference]: With dead ends: 78 [2024-11-28 04:30:18,075 INFO L226 Difference]: Without dead ends: 77 [2024-11-28 04:30:18,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:18,076 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 52 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:18,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 54 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:18,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-28 04:30:18,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-28 04:30:18,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 72 states have internal predecessors, (81), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:18,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2024-11-28 04:30:18,089 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 27 [2024-11-28 04:30:18,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:18,089 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2024-11-28 04:30:18,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:18,090 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2024-11-28 04:30:18,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:30:18,090 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:18,090 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:18,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:30:18,090 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:18,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:18,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1951511434, now seen corresponding path program 1 times [2024-11-28 04:30:18,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:18,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636057607] [2024-11-28 04:30:18,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:18,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:18,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:18,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:18,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636057607] [2024-11-28 04:30:18,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636057607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:18,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293972300] [2024-11-28 04:30:18,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:18,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:18,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:18,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:18,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:30:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:18,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:30:18,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:18,355 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:30:18,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293972300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:18,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:18,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 04:30:18,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424533105] [2024-11-28 04:30:18,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:18,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:30:18,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:18,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:30:18,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:30:18,356 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:18,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:18,410 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2024-11-28 04:30:18,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:30:18,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-11-28 04:30:18,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:18,411 INFO L225 Difference]: With dead ends: 77 [2024-11-28 04:30:18,411 INFO L226 Difference]: Without dead ends: 76 [2024-11-28 04:30:18,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:30:18,412 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 21 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:18,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 100 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:18,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-28 04:30:18,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-28 04:30:18,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 63 states have (on average 1.253968253968254) internal successors, (79), 71 states have internal predecessors, (79), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2024-11-28 04:30:18,422 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 28 [2024-11-28 04:30:18,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:18,423 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2024-11-28 04:30:18,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:18,423 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2024-11-28 04:30:18,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:30:18,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:18,424 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:18,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:30:18,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:30:18,629 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:18,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:18,630 INFO L85 PathProgramCache]: Analyzing trace with hash 205307968, now seen corresponding path program 1 times [2024-11-28 04:30:18,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:18,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948797370] [2024-11-28 04:30:18,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:18,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:18,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:18,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:18,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948797370] [2024-11-28 04:30:18,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948797370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:18,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:18,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:30:18,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221048722] [2024-11-28 04:30:18,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:18,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:30:18,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:18,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:30:18,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:18,712 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:18,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:18,786 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2024-11-28 04:30:18,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:30:18,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-11-28 04:30:18,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:18,787 INFO L225 Difference]: With dead ends: 82 [2024-11-28 04:30:18,787 INFO L226 Difference]: Without dead ends: 81 [2024-11-28 04:30:18,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:30:18,788 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 47 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:18,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 41 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:18,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-28 04:30:18,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 75. [2024-11-28 04:30:18,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 70 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:18,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2024-11-28 04:30:18,796 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 28 [2024-11-28 04:30:18,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:18,796 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2024-11-28 04:30:18,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:18,797 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2024-11-28 04:30:18,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 04:30:18,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:18,801 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:18,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:30:18,802 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:18,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:18,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1498218673, now seen corresponding path program 1 times [2024-11-28 04:30:18,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:18,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097508082] [2024-11-28 04:30:18,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:18,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:18,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [648520175] [2024-11-28 04:30:18,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:18,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:18,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:18,830 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:18,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:30:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:18,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:30:18,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:19,668 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:19,669 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:30:19,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:19,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097508082] [2024-11-28 04:30:19,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:19,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648520175] [2024-11-28 04:30:19,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648520175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:19,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:19,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:30:19,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008639179] [2024-11-28 04:30:19,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:19,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:30:19,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:19,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:30:19,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:30:19,672 INFO L87 Difference]: Start difference. First operand 75 states and 84 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:20,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:20,232 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2024-11-28 04:30:20,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:30:20,232 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-28 04:30:20,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:20,233 INFO L225 Difference]: With dead ends: 82 [2024-11-28 04:30:20,233 INFO L226 Difference]: Without dead ends: 80 [2024-11-28 04:30:20,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:30:20,234 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 85 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:20,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 76 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:30:20,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-28 04:30:20,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2024-11-28 04:30:20,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 63 states have (on average 1.2063492063492063) internal successors, (76), 70 states have internal predecessors, (76), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2024-11-28 04:30:20,246 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 30 [2024-11-28 04:30:20,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:20,246 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2024-11-28 04:30:20,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:20,246 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2024-11-28 04:30:20,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 04:30:20,247 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:20,247 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:20,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:30:20,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:30:20,448 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:20,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:20,449 INFO L85 PathProgramCache]: Analyzing trace with hash 799861450, now seen corresponding path program 1 times [2024-11-28 04:30:20,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:20,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853609503] [2024-11-28 04:30:20,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:20,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:20,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1424278908] [2024-11-28 04:30:20,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:20,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:20,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:20,485 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:20,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:30:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:20,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:30:20,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:21,305 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:21,306 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:30:21,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:21,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853609503] [2024-11-28 04:30:21,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:21,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424278908] [2024-11-28 04:30:21,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424278908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:21,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:21,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:30:21,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374248770] [2024-11-28 04:30:21,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:21,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:30:21,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:21,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:30:21,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:30:21,308 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:24,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:24,400 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2024-11-28 04:30:24,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:30:24,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2024-11-28 04:30:24,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:24,402 INFO L225 Difference]: With dead ends: 81 [2024-11-28 04:30:24,402 INFO L226 Difference]: Without dead ends: 79 [2024-11-28 04:30:24,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:30:24,403 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 77 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:24,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 100 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:30:24,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-28 04:30:24,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2024-11-28 04:30:24,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 61 states have (on average 1.180327868852459) internal successors, (72), 68 states have internal predecessors, (72), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:24,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2024-11-28 04:30:24,414 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 31 [2024-11-28 04:30:24,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:24,414 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2024-11-28 04:30:24,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:24,415 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2024-11-28 04:30:24,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 04:30:24,415 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:24,415 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:24,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:30:24,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:30:24,616 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:24,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:24,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1986093077, now seen corresponding path program 1 times [2024-11-28 04:30:24,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:24,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071418247] [2024-11-28 04:30:24,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:24,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:24,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697655584] [2024-11-28 04:30:24,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:24,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:24,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:24,646 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:24,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:30:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:24,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:30:24,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:29,412 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:29,412 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:30,887 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:30,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:30,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071418247] [2024-11-28 04:30:30,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:30,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697655584] [2024-11-28 04:30:30,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697655584] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:30,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:30,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-28 04:30:30,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449217312] [2024-11-28 04:30:30,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:30,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:30:30,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:30,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:30:30,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:30:30,891 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:31,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:31,529 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2024-11-28 04:30:31,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:30:31,530 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2024-11-28 04:30:31,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:31,532 INFO L225 Difference]: With dead ends: 75 [2024-11-28 04:30:31,532 INFO L226 Difference]: Without dead ends: 74 [2024-11-28 04:30:31,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:30:31,533 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 36 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:31,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 51 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:30:31,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-28 04:30:31,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2024-11-28 04:30:31,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 67 states have internal predecessors, (71), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:30:31,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2024-11-28 04:30:31,543 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 34 [2024-11-28 04:30:31,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:31,543 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2024-11-28 04:30:31,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:31,543 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2024-11-28 04:30:31,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 04:30:31,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:31,545 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:31,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:31,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:30:31,746 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:31,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:31,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1439343300, now seen corresponding path program 1 times [2024-11-28 04:30:31,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:31,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877635400] [2024-11-28 04:30:31,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:31,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:31,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198648190] [2024-11-28 04:30:31,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:31,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:31,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:31,767 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:31,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:30:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:31,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:30:31,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:34,344 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:35,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:35,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877635400] [2024-11-28 04:30:35,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:35,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198648190] [2024-11-28 04:30:35,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198648190] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:35,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:30:35,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2024-11-28 04:30:35,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289599409] [2024-11-28 04:30:35,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:35,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:30:35,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:35,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:30:35,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:30:35,849 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:30:38,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:38,275 INFO L93 Difference]: Finished difference Result 104 states and 121 transitions. [2024-11-28 04:30:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:30:38,275 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2024-11-28 04:30:38,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:38,276 INFO L225 Difference]: With dead ends: 104 [2024-11-28 04:30:38,276 INFO L226 Difference]: Without dead ends: 102 [2024-11-28 04:30:38,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=204, Invalid=498, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:30:38,277 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 69 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:38,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 114 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:30:38,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-28 04:30:38,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 90. [2024-11-28 04:30:38,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 84 states have internal predecessors, (94), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:30:38,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2024-11-28 04:30:38,289 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 35 [2024-11-28 04:30:38,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:38,289 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2024-11-28 04:30:38,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:30:38,290 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2024-11-28 04:30:38,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 04:30:38,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:38,294 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:38,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:38,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:38,495 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:38,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:38,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1669969399, now seen corresponding path program 1 times [2024-11-28 04:30:38,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:38,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603443789] [2024-11-28 04:30:38,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:38,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:38,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [896727877] [2024-11-28 04:30:38,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:38,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:38,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:38,520 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:38,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:30:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:38,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:30:38,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:39,066 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:39,067 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:40,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:40,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603443789] [2024-11-28 04:30:40,716 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:40,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896727877] [2024-11-28 04:30:40,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896727877] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:40,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:40,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-28 04:30:40,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523560284] [2024-11-28 04:30:40,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:40,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:30:40,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:40,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:30:40,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:30:40,718 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:43,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:30:46,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:46,808 INFO L93 Difference]: Finished difference Result 91 states and 102 transitions. [2024-11-28 04:30:46,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:30:46,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2024-11-28 04:30:46,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:46,809 INFO L225 Difference]: With dead ends: 91 [2024-11-28 04:30:46,809 INFO L226 Difference]: Without dead ends: 90 [2024-11-28 04:30:46,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:30:46,810 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 8 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:46,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 109 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:30:46,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-28 04:30:46,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-28 04:30:46,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.1772151898734178) internal successors, (93), 84 states have internal predecessors, (93), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:30:46,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2024-11-28 04:30:46,819 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 36 [2024-11-28 04:30:46,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:46,820 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2024-11-28 04:30:46,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:46,820 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2024-11-28 04:30:46,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 04:30:46,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:46,821 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:46,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:30:47,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:47,025 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:47,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:47,026 INFO L85 PathProgramCache]: Analyzing trace with hash 229443878, now seen corresponding path program 1 times [2024-11-28 04:30:47,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:47,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438421792] [2024-11-28 04:30:47,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:47,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:47,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1506427976] [2024-11-28 04:30:47,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:47,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:47,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:47,050 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:47,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:30:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:47,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:30:47,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:47,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:50,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438421792] [2024-11-28 04:30:50,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506427976] [2024-11-28 04:30:50,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506427976] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:50,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:50,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-28 04:30:50,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461627579] [2024-11-28 04:30:50,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:50,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:30:50,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:50,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:30:50,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:30:50,193 INFO L87 Difference]: Start difference. First operand 90 states and 101 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:54,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:54,034 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2024-11-28 04:30:54,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:30:54,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2024-11-28 04:30:54,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:54,035 INFO L225 Difference]: With dead ends: 91 [2024-11-28 04:30:54,035 INFO L226 Difference]: Without dead ends: 90 [2024-11-28 04:30:54,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:30:54,036 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 10 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:54,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 91 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:30:54,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-28 04:30:54,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-28 04:30:54,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.1645569620253164) internal successors, (92), 84 states have internal predecessors, (92), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:30:54,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 100 transitions. [2024-11-28 04:30:54,045 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 100 transitions. Word has length 37 [2024-11-28 04:30:54,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:54,045 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 100 transitions. [2024-11-28 04:30:54,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:30:54,045 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2024-11-28 04:30:54,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:30:54,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:54,046 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:54,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:54,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:54,250 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:54,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:54,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1662503018, now seen corresponding path program 1 times [2024-11-28 04:30:54,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:54,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770817932] [2024-11-28 04:30:54,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:54,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:54,337 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:54,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:54,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770817932] [2024-11-28 04:30:54,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770817932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:54,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:54,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:30:54,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044318775] [2024-11-28 04:30:54,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:54,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:30:54,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:54,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:30:54,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:54,339 INFO L87 Difference]: Start difference. First operand 90 states and 100 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:30:54,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:54,393 INFO L93 Difference]: Finished difference Result 94 states and 105 transitions. [2024-11-28 04:30:54,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:30:54,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2024-11-28 04:30:54,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:54,395 INFO L225 Difference]: With dead ends: 94 [2024-11-28 04:30:54,395 INFO L226 Difference]: Without dead ends: 93 [2024-11-28 04:30:54,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:54,396 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:54,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 100 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:54,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-28 04:30:54,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-11-28 04:30:54,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.1625) internal successors, (93), 85 states have internal predecessors, (93), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:30:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 101 transitions. [2024-11-28 04:30:54,405 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 101 transitions. Word has length 43 [2024-11-28 04:30:54,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:54,406 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 101 transitions. [2024-11-28 04:30:54,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:30:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 101 transitions. [2024-11-28 04:30:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 04:30:54,406 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:54,406 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:54,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:30:54,407 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:54,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:54,407 INFO L85 PathProgramCache]: Analyzing trace with hash 2014072, now seen corresponding path program 1 times [2024-11-28 04:30:54,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:54,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883162661] [2024-11-28 04:30:54,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:54,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:54,486 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:54,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:54,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883162661] [2024-11-28 04:30:54,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883162661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:54,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:54,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:54,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656722042] [2024-11-28 04:30:54,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:54,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:30:54,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:54,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:30:54,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:54,488 INFO L87 Difference]: Start difference. First operand 91 states and 101 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:30:54,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:54,544 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2024-11-28 04:30:54,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:30:54,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-28 04:30:54,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:54,545 INFO L225 Difference]: With dead ends: 95 [2024-11-28 04:30:54,545 INFO L226 Difference]: Without dead ends: 94 [2024-11-28 04:30:54,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:54,546 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 4 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:54,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 90 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:54,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-28 04:30:54,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2024-11-28 04:30:54,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 81 states have (on average 1.1604938271604939) internal successors, (94), 86 states have internal predecessors, (94), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:30:54,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 102 transitions. [2024-11-28 04:30:54,555 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 102 transitions. Word has length 44 [2024-11-28 04:30:54,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:54,555 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 102 transitions. [2024-11-28 04:30:54,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:30:54,556 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 102 transitions. [2024-11-28 04:30:54,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 04:30:54,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:54,556 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:54,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:30:54,557 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:54,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:54,557 INFO L85 PathProgramCache]: Analyzing trace with hash -128243683, now seen corresponding path program 1 times [2024-11-28 04:30:54,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:54,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373940626] [2024-11-28 04:30:54,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:54,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:54,628 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:54,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:54,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373940626] [2024-11-28 04:30:54,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373940626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:54,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014034826] [2024-11-28 04:30:54,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:54,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:54,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:54,631 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:54,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:30:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:54,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:30:54,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:54,739 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:54,740 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:54,828 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:54,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014034826] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:54,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:30:54,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 04:30:54,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462697466] [2024-11-28 04:30:54,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:54,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:30:54,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:54,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:30:54,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:30:54,830 INFO L87 Difference]: Start difference. First operand 92 states and 102 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:30:55,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:55,003 INFO L93 Difference]: Finished difference Result 251 states and 297 transitions. [2024-11-28 04:30:55,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:30:55,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2024-11-28 04:30:55,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:55,006 INFO L225 Difference]: With dead ends: 251 [2024-11-28 04:30:55,006 INFO L226 Difference]: Without dead ends: 250 [2024-11-28 04:30:55,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:30:55,006 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 137 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:55,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 93 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:55,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-28 04:30:55,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2024-11-28 04:30:55,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 230 states have (on average 1.1478260869565218) internal successors, (264), 235 states have internal predecessors, (264), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:30:55,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 288 transitions. [2024-11-28 04:30:55,035 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 288 transitions. Word has length 47 [2024-11-28 04:30:55,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:55,035 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 288 transitions. [2024-11-28 04:30:55,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:30:55,036 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 288 transitions. [2024-11-28 04:30:55,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 04:30:55,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:55,036 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:55,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:30:55,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 04:30:55,237 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:55,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:55,237 INFO L85 PathProgramCache]: Analyzing trace with hash 354404496, now seen corresponding path program 1 times [2024-11-28 04:30:55,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:55,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373274209] [2024-11-28 04:30:55,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:55,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:55,346 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:55,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:55,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373274209] [2024-11-28 04:30:55,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373274209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:55,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123974399] [2024-11-28 04:30:55,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:55,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:55,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:55,349 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:55,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:30:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:55,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:30:55,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:55,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:55,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:55,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123974399] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:55,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:30:55,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-28 04:30:55,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182860336] [2024-11-28 04:30:55,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:55,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:30:55,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:55,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:30:55,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:30:55,679 INFO L87 Difference]: Start difference. First operand 249 states and 288 transitions. Second operand has 13 states, 12 states have (on average 9.166666666666666) internal successors, (110), 13 states have internal predecessors, (110), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:30:55,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:55,899 INFO L93 Difference]: Finished difference Result 293 states and 342 transitions. [2024-11-28 04:30:55,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:30:55,899 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.166666666666666) internal successors, (110), 13 states have internal predecessors, (110), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 47 [2024-11-28 04:30:55,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:55,901 INFO L225 Difference]: With dead ends: 293 [2024-11-28 04:30:55,901 INFO L226 Difference]: Without dead ends: 292 [2024-11-28 04:30:55,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:30:55,902 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 145 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:55,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 154 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:55,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-28 04:30:55,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 286. [2024-11-28 04:30:55,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 265 states have (on average 1.1433962264150943) internal successors, (303), 270 states have internal predecessors, (303), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 04:30:55,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 331 transitions. [2024-11-28 04:30:55,929 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 331 transitions. Word has length 47 [2024-11-28 04:30:55,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:55,930 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 331 transitions. [2024-11-28 04:30:55,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.166666666666666) internal successors, (110), 13 states have internal predecessors, (110), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:30:55,930 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 331 transitions. [2024-11-28 04:30:55,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 04:30:55,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:55,931 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:55,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:30:56,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 04:30:56,131 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:56,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:56,132 INFO L85 PathProgramCache]: Analyzing trace with hash 319413212, now seen corresponding path program 1 times [2024-11-28 04:30:56,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:56,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753702581] [2024-11-28 04:30:56,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:56,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:56,221 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:56,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:56,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753702581] [2024-11-28 04:30:56,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753702581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:56,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4661366] [2024-11-28 04:30:56,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:56,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:56,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:56,225 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:56,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:30:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:56,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:30:56,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:56,348 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:56,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4661366] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:56,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:30:56,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 04:30:56,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552041477] [2024-11-28 04:30:56,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:56,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:30:56,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:56,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:30:56,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:30:56,440 INFO L87 Difference]: Start difference. First operand 286 states and 331 transitions. Second operand has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:30:56,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:56,594 INFO L93 Difference]: Finished difference Result 292 states and 338 transitions. [2024-11-28 04:30:56,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:30:56,594 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 48 [2024-11-28 04:30:56,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:56,596 INFO L225 Difference]: With dead ends: 292 [2024-11-28 04:30:56,596 INFO L226 Difference]: Without dead ends: 291 [2024-11-28 04:30:56,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:30:56,597 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 132 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:56,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 94 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:56,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-28 04:30:56,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 276. [2024-11-28 04:30:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 257 states have (on average 1.1245136186770428) internal successors, (289), 262 states have internal predecessors, (289), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:30:56,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 313 transitions. [2024-11-28 04:30:56,627 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 313 transitions. Word has length 48 [2024-11-28 04:30:56,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:56,627 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 313 transitions. [2024-11-28 04:30:56,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:30:56,627 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 313 transitions. [2024-11-28 04:30:56,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 04:30:56,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:56,628 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:56,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 04:30:56,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:30:56,829 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:56,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:56,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1898362434, now seen corresponding path program 1 times [2024-11-28 04:30:56,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:56,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810178130] [2024-11-28 04:30:56,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:56,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:56,926 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:56,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:56,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810178130] [2024-11-28 04:30:56,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810178130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:56,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957254753] [2024-11-28 04:30:56,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:56,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:56,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:56,929 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:56,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:30:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:56,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:30:56,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:57,122 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:57,122 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:57,215 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:57,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957254753] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:57,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:30:57,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-28 04:30:57,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125188829] [2024-11-28 04:30:57,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:57,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:30:57,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:57,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:30:57,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:30:57,217 INFO L87 Difference]: Start difference. First operand 276 states and 313 transitions. Second operand has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 13 states have internal predecessors, (113), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:30:57,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:57,433 INFO L93 Difference]: Finished difference Result 282 states and 319 transitions. [2024-11-28 04:30:57,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:30:57,434 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 13 states have internal predecessors, (113), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 48 [2024-11-28 04:30:57,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:57,435 INFO L225 Difference]: With dead ends: 282 [2024-11-28 04:30:57,435 INFO L226 Difference]: Without dead ends: 281 [2024-11-28 04:30:57,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:30:57,436 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 155 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:57,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 124 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:57,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-28 04:30:57,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 271. [2024-11-28 04:30:57,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 252 states have (on average 1.1150793650793651) internal successors, (281), 257 states have internal predecessors, (281), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:30:57,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 305 transitions. [2024-11-28 04:30:57,488 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 305 transitions. Word has length 48 [2024-11-28 04:30:57,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:57,489 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 305 transitions. [2024-11-28 04:30:57,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 13 states have internal predecessors, (113), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:30:57,489 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 305 transitions. [2024-11-28 04:30:57,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-28 04:30:57,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:57,490 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:57,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 04:30:57,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 04:30:57,690 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:30:57,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:57,691 INFO L85 PathProgramCache]: Analyzing trace with hash 708540266, now seen corresponding path program 1 times [2024-11-28 04:30:57,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:57,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300047177] [2024-11-28 04:30:57,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:57,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:57,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113207723] [2024-11-28 04:30:57,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:57,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:57,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:57,727 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:57,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:30:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:57,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:30:57,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:59,043 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:30:59,043 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:31:33,633 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 18 refuted. 2 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:31:33,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:33,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300047177] [2024-11-28 04:31:33,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:31:33,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113207723] [2024-11-28 04:31:33,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113207723] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:31:33,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:31:33,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2024-11-28 04:31:33,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421718506] [2024-11-28 04:31:33,635 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:31:33,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 04:31:33,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:33,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 04:31:33,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=551, Unknown=2, NotChecked=0, Total=702 [2024-11-28 04:31:33,636 INFO L87 Difference]: Start difference. First operand 271 states and 305 transitions. Second operand has 27 states, 26 states have (on average 3.8076923076923075) internal successors, (99), 26 states have internal predecessors, (99), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:31:43,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:31:55,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:32:06,150 WARN L286 SmtUtils]: Spent 7.43s on a formula simplification. DAG size of input: 99 DAG size of output: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:32:17,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:32:18,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:18,118 INFO L93 Difference]: Finished difference Result 298 states and 334 transitions. [2024-11-28 04:32:18,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-28 04:32:18,119 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.8076923076923075) internal successors, (99), 26 states have internal predecessors, (99), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 57 [2024-11-28 04:32:18,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:18,120 INFO L225 Difference]: With dead ends: 298 [2024-11-28 04:32:18,120 INFO L226 Difference]: Without dead ends: 297 [2024-11-28 04:32:18,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 50.6s TimeCoverageRelationStatistics Valid=412, Invalid=1391, Unknown=3, NotChecked=0, Total=1806 [2024-11-28 04:32:18,121 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 93 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:18,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 376 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 940 Invalid, 1 Unknown, 0 Unchecked, 15.9s Time] [2024-11-28 04:32:18,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-28 04:32:18,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 287. [2024-11-28 04:32:18,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 267 states have (on average 1.101123595505618) internal successors, (294), 272 states have internal predecessors, (294), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 04:32:18,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 320 transitions. [2024-11-28 04:32:18,155 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 320 transitions. Word has length 57 [2024-11-28 04:32:18,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:18,155 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 320 transitions. [2024-11-28 04:32:18,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.8076923076923075) internal successors, (99), 26 states have internal predecessors, (99), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:32:18,156 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 320 transitions. [2024-11-28 04:32:18,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:32:18,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:18,157 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:18,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:32:18,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 04:32:18,361 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:32:18,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:18,362 INFO L85 PathProgramCache]: Analyzing trace with hash 489911827, now seen corresponding path program 1 times [2024-11-28 04:32:18,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:18,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849883772] [2024-11-28 04:32:18,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:18,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:32:18,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510804808] [2024-11-28 04:32:18,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:18,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:18,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:18,386 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:18,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:32:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:18,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:32:18,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:19,641 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:32:19,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:54,733 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:32:54,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:54,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849883772] [2024-11-28 04:32:54,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:32:54,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510804808] [2024-11-28 04:32:54,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510804808] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:32:54,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:32:54,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2024-11-28 04:32:54,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713317535] [2024-11-28 04:32:54,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:54,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 04:32:54,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:54,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 04:32:54,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=552, Unknown=1, NotChecked=0, Total=702 [2024-11-28 04:32:54,736 INFO L87 Difference]: Start difference. First operand 287 states and 320 transitions. Second operand has 27 states, 26 states have (on average 3.8846153846153846) internal successors, (101), 26 states have internal predecessors, (101), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:32:59,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:33:25,510 WARN L286 SmtUtils]: Spent 9.78s on a formula simplification. DAG size of input: 99 DAG size of output: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:33:38,505 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 70 DAG size of output: 56 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:33:41,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:33:42,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:42,379 INFO L93 Difference]: Finished difference Result 295 states and 328 transitions. [2024-11-28 04:33:42,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 04:33:42,380 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.8846153846153846) internal successors, (101), 26 states have internal predecessors, (101), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 58 [2024-11-28 04:33:42,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:42,381 INFO L225 Difference]: With dead ends: 295 [2024-11-28 04:33:42,381 INFO L226 Difference]: Without dead ends: 294 [2024-11-28 04:33:42,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 49.1s TimeCoverageRelationStatistics Valid=371, Invalid=1268, Unknown=1, NotChecked=0, Total=1640 [2024-11-28 04:33:42,382 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 81 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:42,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 351 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2024-11-28 04:33:42,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-28 04:33:42,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2024-11-28 04:33:42,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 256 states have (on average 1.09375) internal successors, (280), 261 states have internal predecessors, (280), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 04:33:42,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 306 transitions. [2024-11-28 04:33:42,416 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 306 transitions. Word has length 58 [2024-11-28 04:33:42,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:42,416 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 306 transitions. [2024-11-28 04:33:42,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.8846153846153846) internal successors, (101), 26 states have internal predecessors, (101), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:33:42,416 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 306 transitions. [2024-11-28 04:33:42,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:33:42,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:42,417 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:42,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:33:42,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 04:33:42,621 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:33:42,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:42,622 INFO L85 PathProgramCache]: Analyzing trace with hash -147675652, now seen corresponding path program 1 times [2024-11-28 04:33:42,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:42,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969751560] [2024-11-28 04:33:42,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:42,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:33:42,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:42,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969751560] [2024-11-28 04:33:42,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969751560] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:42,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771678692] [2024-11-28 04:33:42,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:42,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:42,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:42,819 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:42,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:33:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:42,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:33:42,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:33:43,193 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:43,422 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:33:43,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771678692] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:33:43,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:33:43,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-28 04:33:43,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812605076] [2024-11-28 04:33:43,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:33:43,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:33:43,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:43,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:33:43,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:33:43,424 INFO L87 Difference]: Start difference. First operand 276 states and 306 transitions. Second operand has 19 states, 18 states have (on average 11.444444444444445) internal successors, (206), 19 states have internal predecessors, (206), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:33:43,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:43,985 INFO L93 Difference]: Finished difference Result 612 states and 704 transitions. [2024-11-28 04:33:43,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:33:43,986 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 11.444444444444445) internal successors, (206), 19 states have internal predecessors, (206), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 89 [2024-11-28 04:33:43,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:43,989 INFO L225 Difference]: With dead ends: 612 [2024-11-28 04:33:43,989 INFO L226 Difference]: Without dead ends: 611 [2024-11-28 04:33:43,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=279, Invalid=591, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:33:43,991 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 245 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:43,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 212 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:33:43,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-28 04:33:44,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 544. [2024-11-28 04:33:44,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 512 states have (on average 1.109375) internal successors, (568), 517 states have internal predecessors, (568), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:33:44,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 618 transitions. [2024-11-28 04:33:44,065 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 618 transitions. Word has length 89 [2024-11-28 04:33:44,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:44,066 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 618 transitions. [2024-11-28 04:33:44,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 11.444444444444445) internal successors, (206), 19 states have internal predecessors, (206), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:33:44,066 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 618 transitions. [2024-11-28 04:33:44,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:33:44,067 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:44,068 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:44,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:33:44,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:44,269 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:33:44,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:44,271 INFO L85 PathProgramCache]: Analyzing trace with hash -282977838, now seen corresponding path program 1 times [2024-11-28 04:33:44,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:44,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538141751] [2024-11-28 04:33:44,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:44,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:44,505 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:33:44,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:44,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538141751] [2024-11-28 04:33:44,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538141751] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:44,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984719073] [2024-11-28 04:33:44,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:44,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:44,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:44,508 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:44,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:33:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:44,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:33:44,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:44,979 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:33:44,980 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:33:45,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984719073] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:33:45,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:33:45,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-28 04:33:45,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760825354] [2024-11-28 04:33:45,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:33:45,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:33:45,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:45,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:33:45,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:33:45,273 INFO L87 Difference]: Start difference. First operand 544 states and 618 transitions. Second operand has 19 states, 18 states have (on average 11.61111111111111) internal successors, (209), 19 states have internal predecessors, (209), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:33:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:45,796 INFO L93 Difference]: Finished difference Result 614 states and 700 transitions. [2024-11-28 04:33:45,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:33:45,797 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 11.61111111111111) internal successors, (209), 19 states have internal predecessors, (209), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 90 [2024-11-28 04:33:45,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:45,799 INFO L225 Difference]: With dead ends: 614 [2024-11-28 04:33:45,799 INFO L226 Difference]: Without dead ends: 613 [2024-11-28 04:33:45,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=279, Invalid=591, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:33:45,801 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 416 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:45,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 234 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:33:45,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-11-28 04:33:45,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 516. [2024-11-28 04:33:45,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 485 states have (on average 1.1051546391752578) internal successors, (536), 490 states have internal predecessors, (536), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:33:45,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 584 transitions. [2024-11-28 04:33:45,856 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 584 transitions. Word has length 90 [2024-11-28 04:33:45,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:45,856 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 584 transitions. [2024-11-28 04:33:45,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 11.61111111111111) internal successors, (209), 19 states have internal predecessors, (209), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:33:45,857 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 584 transitions. [2024-11-28 04:33:45,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 04:33:45,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:45,858 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:45,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:33:46,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:46,062 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:33:46,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:46,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1553563094, now seen corresponding path program 2 times [2024-11-28 04:33:46,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:46,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474063227] [2024-11-28 04:33:46,063 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:33:46,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:46,112 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:33:46,113 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:33:46,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1580477809] [2024-11-28 04:33:46,115 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:33:46,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:46,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:46,117 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:46,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:33:46,186 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:33:46,186 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:33:46,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:33:46,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:57,057 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 2 proven. 137 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 04:33:57,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:19,747 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 45 proven. 92 refuted. 2 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 04:35:19,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:19,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474063227] [2024-11-28 04:35:19,747 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:19,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580477809] [2024-11-28 04:35:19,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580477809] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:19,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:35:19,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 41 [2024-11-28 04:35:19,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693486138] [2024-11-28 04:35:19,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:19,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-28 04:35:19,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:19,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-28 04:35:19,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=1368, Unknown=3, NotChecked=0, Total=1722 [2024-11-28 04:35:19,750 INFO L87 Difference]: Start difference. First operand 516 states and 584 transitions. Second operand has 42 states, 41 states have (on average 4.024390243902439) internal successors, (165), 42 states have internal predecessors, (165), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:35:59,020 WARN L286 SmtUtils]: Spent 33.02s on a formula simplification. DAG size of input: 240 DAG size of output: 149 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:36:01,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:36:05,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:36:10,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:36:21,277 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 68 DAG size of output: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:36:24,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:36:45,629 WARN L286 SmtUtils]: Spent 9.22s on a formula simplification. DAG size of input: 160 DAG size of output: 121 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:37:14,558 WARN L286 SmtUtils]: Spent 23.38s on a formula simplification. DAG size of input: 291 DAG size of output: 185 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:37:36,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:18,371 WARN L286 SmtUtils]: Spent 31.56s on a formula simplification. DAG size of input: 217 DAG size of output: 124 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:38:34,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:43,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:24,019 WARN L286 SmtUtils]: Spent 35.68s on a formula simplification. DAG size of input: 324 DAG size of output: 121 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:39:57,212 WARN L286 SmtUtils]: Spent 27.06s on a formula simplification. DAG size of input: 128 DAG size of output: 64 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:40:00,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:00,978 INFO L93 Difference]: Finished difference Result 804 states and 934 transitions. [2024-11-28 04:40:00,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-28 04:40:00,979 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 4.024390243902439) internal successors, (165), 42 states have internal predecessors, (165), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 99 [2024-11-28 04:40:00,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:00,981 INFO L225 Difference]: With dead ends: 804 [2024-11-28 04:40:00,981 INFO L226 Difference]: Without dead ends: 801 [2024-11-28 04:40:00,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1508 ImplicationChecksByTransitivity, 288.0s TimeCoverageRelationStatistics Valid=1226, Invalid=5412, Unknown=4, NotChecked=0, Total=6642 [2024-11-28 04:40:00,983 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 250 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 72 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:00,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 620 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1984 Invalid, 1 Unknown, 0 Unchecked, 39.0s Time] [2024-11-28 04:40:00,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-28 04:40:01,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 769. [2024-11-28 04:40:01,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 724 states have (on average 1.1160220994475138) internal successors, (808), 729 states have internal predecessors, (808), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 04:40:01,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 884 transitions. [2024-11-28 04:40:01,097 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 884 transitions. Word has length 99 [2024-11-28 04:40:01,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:01,097 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 884 transitions. [2024-11-28 04:40:01,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 4.024390243902439) internal successors, (165), 42 states have internal predecessors, (165), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:40:01,098 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 884 transitions. [2024-11-28 04:40:01,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 04:40:01,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:01,099 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:01,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 04:40:01,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-28 04:40:01,300 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:40:01,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:01,300 INFO L85 PathProgramCache]: Analyzing trace with hash 915815719, now seen corresponding path program 2 times [2024-11-28 04:40:01,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:01,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301091930] [2024-11-28 04:40:01,301 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:40:01,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:01,335 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:40:01,335 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:40:01,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [954048382] [2024-11-28 04:40:01,337 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:40:01,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:01,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:01,341 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:01,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:40:01,410 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:40:01,411 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:40:01,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:40:01,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:07,035 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 141 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 04:40:07,035 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:40:55,130 WARN L286 SmtUtils]: Spent 7.54s on a formula simplification that was a NOOP. DAG size: 98 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:41:23,568 WARN L286 SmtUtils]: Spent 8.69s on a formula simplification that was a NOOP. DAG size: 100 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:41:49,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:49,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301091930] [2024-11-28 04:41:49,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:41:49,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954048382] [2024-11-28 04:41:49,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954048382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:49,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:41:49,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2024-11-28 04:41:49,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220947947] [2024-11-28 04:41:49,659 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:49,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 04:41:49,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:49,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 04:41:49,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=1291, Unknown=1, NotChecked=0, Total=1640 [2024-11-28 04:41:49,660 INFO L87 Difference]: Start difference. First operand 769 states and 884 transitions. Second operand has 24 states, 23 states have (on average 3.739130434782609) internal successors, (86), 24 states have internal predecessors, (86), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:41:57,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:57,288 INFO L93 Difference]: Finished difference Result 793 states and 909 transitions. [2024-11-28 04:41:57,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 04:41:57,289 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.739130434782609) internal successors, (86), 24 states have internal predecessors, (86), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 100 [2024-11-28 04:41:57,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:57,291 INFO L225 Difference]: With dead ends: 793 [2024-11-28 04:41:57,292 INFO L226 Difference]: Without dead ends: 790 [2024-11-28 04:41:57,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 141 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 50.4s TimeCoverageRelationStatistics Valid=685, Invalid=2736, Unknown=1, NotChecked=0, Total=3422 [2024-11-28 04:41:57,293 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 79 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:57,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 428 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 04:41:57,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2024-11-28 04:41:57,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 697. [2024-11-28 04:41:57,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 656 states have (on average 1.1097560975609757) internal successors, (728), 661 states have internal predecessors, (728), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:41:57,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 796 transitions. [2024-11-28 04:41:57,392 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 796 transitions. Word has length 100 [2024-11-28 04:41:57,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:57,392 INFO L471 AbstractCegarLoop]: Abstraction has 697 states and 796 transitions. [2024-11-28 04:41:57,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.739130434782609) internal successors, (86), 24 states have internal predecessors, (86), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:41:57,392 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 796 transitions. [2024-11-28 04:41:57,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 04:41:57,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:57,394 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 04:41:57,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-28 04:41:57,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:57,598 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:41:57,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:57,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1295433363, now seen corresponding path program 3 times [2024-11-28 04:41:57,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:57,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287276265] [2024-11-28 04:41:57,599 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:41:57,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:57,662 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-28 04:41:57,662 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:41:57,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151222368] [2024-11-28 04:41:57,664 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:41:57,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:57,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:57,669 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:57,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:41:57,734 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 04:41:57,734 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:41:57,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:41:57,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:19,949 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 27 proven. 50 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-28 04:42:19,949 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:26,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:42:26,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287276265] [2024-11-28 04:42:26,455 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:42:26,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151222368] [2024-11-28 04:42:26,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151222368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:26,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:26,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:42:26,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592882291] [2024-11-28 04:42:26,456 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:26,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:42:26,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:42:26,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:42:26,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=310, Unknown=4, NotChecked=0, Total=380 [2024-11-28 04:42:26,457 INFO L87 Difference]: Start difference. First operand 697 states and 796 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:42:30,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:42:34,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:42:36,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:42:40,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:42:42,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:42:43,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:42:49,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:42:51,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:42:55,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:42:59,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:43:03,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:43:15,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:43:19,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:43:23,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:43:27,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:43:31,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:43:35,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:43:40,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:43:44,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:43:48,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:43:52,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:43:56,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:44:00,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:44:04,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:44:05,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:44:11,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:44:15,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:44:19,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:44:33,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:44:35,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:44:39,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:44:43,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:44:47,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:44:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:48,012 INFO L93 Difference]: Finished difference Result 709 states and 810 transitions. [2024-11-28 04:44:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:44:48,012 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 104 [2024-11-28 04:44:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:48,014 INFO L225 Difference]: With dead ends: 709 [2024-11-28 04:44:48,014 INFO L226 Difference]: Without dead ends: 708 [2024-11-28 04:44:48,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 46.9s TimeCoverageRelationStatistics Valid=139, Invalid=505, Unknown=6, NotChecked=0, Total=650 [2024-11-28 04:44:48,015 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 41 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 4 mSolverCounterUnsat, 28 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 119.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 28 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:48,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 114 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 312 Invalid, 28 Unknown, 0 Unchecked, 119.6s Time] [2024-11-28 04:44:48,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-28 04:44:48,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 676. [2024-11-28 04:44:48,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 636 states have (on average 1.1022012578616351) internal successors, (701), 640 states have internal predecessors, (701), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:44:48,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 769 transitions. [2024-11-28 04:44:48,120 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 769 transitions. Word has length 104 [2024-11-28 04:44:48,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:48,120 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 769 transitions. [2024-11-28 04:44:48,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:44:48,121 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 769 transitions. [2024-11-28 04:44:48,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:44:48,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:48,123 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:48,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 04:44:48,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-28 04:44:48,327 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:44:48,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:48,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1532389538, now seen corresponding path program 2 times [2024-11-28 04:44:48,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:48,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155475522] [2024-11-28 04:44:48,328 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:44:48,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:48,345 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:44:48,346 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:44:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:44:48,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:48,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155475522] [2024-11-28 04:44:48,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155475522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:44:48,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930725712] [2024-11-28 04:44:48,527 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:44:48,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:44:48,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:44:48,530 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:44:48,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:44:48,580 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:44:48,580 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:44:48,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:44:48,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:44:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-28 04:44:49,864 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:44:50,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930725712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:44:50,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:44:50,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2024-11-28 04:44:50,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597962206] [2024-11-28 04:44:50,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:44:50,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:44:50,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:50,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:44:50,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:44:50,045 INFO L87 Difference]: Start difference. First operand 676 states and 769 transitions. Second operand has 16 states, 15 states have (on average 7.8) internal successors, (117), 15 states have internal predecessors, (117), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 04:44:53,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:44:53,729 INFO L93 Difference]: Finished difference Result 1005 states and 1161 transitions. [2024-11-28 04:44:53,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 04:44:53,730 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.8) internal successors, (117), 15 states have internal predecessors, (117), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) Word has length 110 [2024-11-28 04:44:53,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:44:53,733 INFO L225 Difference]: With dead ends: 1005 [2024-11-28 04:44:53,733 INFO L226 Difference]: Without dead ends: 1004 [2024-11-28 04:44:53,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=641, Invalid=1711, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 04:44:53,735 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 310 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:44:53,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 173 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:44:53,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2024-11-28 04:44:53,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 976. [2024-11-28 04:44:53,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 920 states have (on average 1.0923913043478262) internal successors, (1005), 924 states have internal predecessors, (1005), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 04:44:53,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1105 transitions. [2024-11-28 04:44:53,923 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1105 transitions. Word has length 110 [2024-11-28 04:44:53,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:44:53,924 INFO L471 AbstractCegarLoop]: Abstraction has 976 states and 1105 transitions. [2024-11-28 04:44:53,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.8) internal successors, (117), 15 states have internal predecessors, (117), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 04:44:53,924 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1105 transitions. [2024-11-28 04:44:53,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 04:44:53,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:44:53,926 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:53,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:44:54,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:44:54,130 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:44:54,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:54,131 INFO L85 PathProgramCache]: Analyzing trace with hash -259435333, now seen corresponding path program 2 times [2024-11-28 04:44:54,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:54,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517818111] [2024-11-28 04:44:54,131 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:44:54,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:54,147 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:44:54,147 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:44:54,314 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:44:54,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:54,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517818111] [2024-11-28 04:44:54,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517818111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:44:54,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230033247] [2024-11-28 04:44:54,315 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:44:54,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:44:54,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:44:54,317 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:44:54,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:44:54,367 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:44:54,367 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:44:54,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:44:54,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:44:55,517 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-28 04:44:55,517 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:44:59,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230033247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:44:59,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:44:59,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2024-11-28 04:44:59,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110198375] [2024-11-28 04:44:59,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:44:59,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:44:59,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:59,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:44:59,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:44:59,697 INFO L87 Difference]: Start difference. First operand 976 states and 1105 transitions. Second operand has 16 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 04:45:03,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:03,292 INFO L93 Difference]: Finished difference Result 1005 states and 1139 transitions. [2024-11-28 04:45:03,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 04:45:03,292 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) Word has length 111 [2024-11-28 04:45:03,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:03,295 INFO L225 Difference]: With dead ends: 1005 [2024-11-28 04:45:03,295 INFO L226 Difference]: Without dead ends: 1004 [2024-11-28 04:45:03,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=641, Invalid=1711, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 04:45:03,297 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 247 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:03,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 177 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:45:03,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2024-11-28 04:45:03,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 980. [2024-11-28 04:45:03,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 924 states have (on average 1.08008658008658) internal successors, (998), 928 states have internal predecessors, (998), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 04:45:03,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1098 transitions. [2024-11-28 04:45:03,484 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1098 transitions. Word has length 111 [2024-11-28 04:45:03,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:03,485 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1098 transitions. [2024-11-28 04:45:03,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 04:45:03,485 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1098 transitions. [2024-11-28 04:45:03,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 04:45:03,487 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:03,487 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:03,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-28 04:45:03,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:03,691 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:45:03,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:03,692 INFO L85 PathProgramCache]: Analyzing trace with hash 67566737, now seen corresponding path program 2 times [2024-11-28 04:45:03,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:03,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555755091] [2024-11-28 04:45:03,692 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:45:03,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:03,709 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:45:03,709 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:45:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:45:04,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:04,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555755091] [2024-11-28 04:45:04,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555755091] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:04,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100820531] [2024-11-28 04:45:04,017 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:45:04,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:04,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:04,019 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:04,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:45:04,112 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:45:04,113 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:45:04,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:45:04,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:04,731 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:45:04,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:05,145 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:45:05,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100820531] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:45:05,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:45:05,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2024-11-28 04:45:05,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310569471] [2024-11-28 04:45:05,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:05,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:45:05,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:05,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:45:05,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=555, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:45:05,148 INFO L87 Difference]: Start difference. First operand 980 states and 1098 transitions. Second operand has 28 states, 27 states have (on average 10.296296296296296) internal successors, (278), 28 states have internal predecessors, (278), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 04:45:06,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:06,404 INFO L93 Difference]: Finished difference Result 1603 states and 1827 transitions. [2024-11-28 04:45:06,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:45:06,404 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 10.296296296296296) internal successors, (278), 28 states have internal predecessors, (278), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 118 [2024-11-28 04:45:06,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:06,408 INFO L225 Difference]: With dead ends: 1603 [2024-11-28 04:45:06,408 INFO L226 Difference]: Without dead ends: 1602 [2024-11-28 04:45:06,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=572, Invalid=1408, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 04:45:06,409 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 717 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:06,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 328 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:45:06,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2024-11-28 04:45:06,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1494. [2024-11-28 04:45:06,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1412 states have (on average 1.089943342776204) internal successors, (1539), 1416 states have internal predecessors, (1539), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-28 04:45:06,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 1691 transitions. [2024-11-28 04:45:06,671 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 1691 transitions. Word has length 118 [2024-11-28 04:45:06,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:06,671 INFO L471 AbstractCegarLoop]: Abstraction has 1494 states and 1691 transitions. [2024-11-28 04:45:06,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 10.296296296296296) internal successors, (278), 28 states have internal predecessors, (278), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 04:45:06,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 1691 transitions. [2024-11-28 04:45:06,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:45:06,673 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:06,673 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:06,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 04:45:06,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 04:45:06,874 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:45:06,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:06,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2094568925, now seen corresponding path program 2 times [2024-11-28 04:45:06,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:06,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623524705] [2024-11-28 04:45:06,874 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:45:06,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:06,894 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:45:06,894 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:45:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:45:07,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:07,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623524705] [2024-11-28 04:45:07,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623524705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:07,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334285758] [2024-11-28 04:45:07,171 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:45:07,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:07,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:07,173 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:07,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:45:07,251 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:45:07,252 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:45:07,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:45:07,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:07,873 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:45:07,873 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:45:08,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334285758] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:45:08,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:45:08,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2024-11-28 04:45:08,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431460076] [2024-11-28 04:45:08,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:08,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:45:08,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:08,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:45:08,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=555, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:45:08,259 INFO L87 Difference]: Start difference. First operand 1494 states and 1691 transitions. Second operand has 28 states, 27 states have (on average 10.407407407407407) internal successors, (281), 28 states have internal predecessors, (281), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 04:45:09,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:09,284 INFO L93 Difference]: Finished difference Result 1604 states and 1818 transitions. [2024-11-28 04:45:09,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:45:09,284 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 10.407407407407407) internal successors, (281), 28 states have internal predecessors, (281), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 119 [2024-11-28 04:45:09,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:09,287 INFO L225 Difference]: With dead ends: 1604 [2024-11-28 04:45:09,287 INFO L226 Difference]: Without dead ends: 1603 [2024-11-28 04:45:09,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=572, Invalid=1408, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 04:45:09,289 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 459 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:09,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 321 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:45:09,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2024-11-28 04:45:09,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1148. [2024-11-28 04:45:09,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1084 states have (on average 1.0913284132841328) internal successors, (1183), 1088 states have internal predecessors, (1183), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-28 04:45:09,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1299 transitions. [2024-11-28 04:45:09,488 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1299 transitions. Word has length 119 [2024-11-28 04:45:09,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:09,488 INFO L471 AbstractCegarLoop]: Abstraction has 1148 states and 1299 transitions. [2024-11-28 04:45:09,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 10.407407407407407) internal successors, (281), 28 states have internal predecessors, (281), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 04:45:09,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1299 transitions. [2024-11-28 04:45:09,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-28 04:45:09,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:09,491 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:09,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 04:45:09,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 04:45:09,695 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-28 04:45:09,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:09,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1494005321, now seen corresponding path program 3 times [2024-11-28 04:45:09,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:09,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930848753] [2024-11-28 04:45:09,696 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:45:09,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:09,758 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:45:09,758 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:45:10,199 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 200 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:45:10,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:10,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930848753] [2024-11-28 04:45:10,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930848753] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:10,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144058633] [2024-11-28 04:45:10,200 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:45:10,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:10,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:10,202 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:10,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203586c7-5272-4714-9ebd-af887ad73c88/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:45:10,258 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 04:45:10,258 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:45:10,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:45:10,264 INFO L279 TraceCheckSpWp]: Computing forward predicates...