./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.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_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/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_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/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_49aea80a-cd3d-40d5-aff9-50554d300336/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 aefc568e9b7c922872a103ac050823e614044aea4bac2f22f2c586f3247176b4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:53:27,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:53:27,857 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:53:27,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:53:27,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:53:27,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:53:27,924 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:53:27,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:53:27,925 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:53:27,925 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:53:27,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:53:27,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:53:27,928 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:53:27,928 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:53:27,929 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:53:27,929 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:53:27,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:53:27,930 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:53:27,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:53:27,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:53:27,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:53:27,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:53:27,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:53:27,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:53:27,931 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:53:27,931 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:53:27,931 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:53:27,931 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:53:27,931 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:53:27,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:53:27,932 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:53:27,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:53:27,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:53:27,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:53:27,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:53:27,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:53:27,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:53:27,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:53:27,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:53:27,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:53:27,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:53:27,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:53:27,934 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:53:27,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:53:27,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:53:27,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:53:27,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:53:27,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:53:27,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:53:27,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:53:27,936 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_49aea80a-cd3d-40d5-aff9-50554d300336/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 -> aefc568e9b7c922872a103ac050823e614044aea4bac2f22f2c586f3247176b4 [2024-11-28 04:53:28,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:53:28,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:53:28,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:53:28,340 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:53:28,340 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:53:28,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c [2024-11-28 04:53:32,369 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/data/0027c3bea/d2e5423e510f44438a210d6562d86083/FLAGe69ee80c5 [2024-11-28 04:53:32,772 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:53:32,774 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c [2024-11-28 04:53:32,805 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/data/0027c3bea/d2e5423e510f44438a210d6562d86083/FLAGe69ee80c5 [2024-11-28 04:53:32,876 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/data/0027c3bea/d2e5423e510f44438a210d6562d86083 [2024-11-28 04:53:32,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:53:32,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:53:32,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:53:32,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:53:32,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:53:32,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:53:32" (1/1) ... [2024-11-28 04:53:32,916 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c4d8bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:32, skipping insertion in model container [2024-11-28 04:53:32,916 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:53:32" (1/1) ... [2024-11-28 04:53:32,940 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:53:33,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:53:33,230 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:53:33,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:53:33,298 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:53:33,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33 WrapperNode [2024-11-28 04:53:33,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:53:33,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:53:33,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:53:33,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:53:33,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,369 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2024-11-28 04:53:33,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:53:33,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:53:33,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:53:33,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:53:33,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,394 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,418 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 04:53:33,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,428 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,442 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:53:33,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:53:33,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:53:33,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:53:33,454 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (1/1) ... [2024-11-28 04:53:33,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:53:33,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:33,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:53:33,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:53:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:53:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:53:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:53:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:53:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:53:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:53:33,617 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:53:33,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:53:34,181 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-28 04:53:34,182 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:53:34,197 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:53:34,197 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:53:34,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:53:34 BoogieIcfgContainer [2024-11-28 04:53:34,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:53:34,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:53:34,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:53:34,209 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:53:34,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:53:32" (1/3) ... [2024-11-28 04:53:34,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fff4046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:53:34, skipping insertion in model container [2024-11-28 04:53:34,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:33" (2/3) ... [2024-11-28 04:53:34,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fff4046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:53:34, skipping insertion in model container [2024-11-28 04:53:34,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:53:34" (3/3) ... [2024-11-28 04:53:34,214 INFO L128 eAbstractionObserver]: Analyzing ICFG hard-ll_unwindbound50.c [2024-11-28 04:53:34,238 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:53:34,241 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard-ll_unwindbound50.c that has 2 procedures, 84 locations, 1 initial locations, 2 loop locations, and 28 error locations. [2024-11-28 04:53:34,327 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:53:34,352 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;@78406366, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:53:34,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-28 04:53:34,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 47 states have (on average 1.7872340425531914) internal successors, (84), 75 states have internal predecessors, (84), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 04:53:34,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 04:53:34,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:34,366 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:53:34,367 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:34,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:34,374 INFO L85 PathProgramCache]: Analyzing trace with hash 889508744, now seen corresponding path program 1 times [2024-11-28 04:53:34,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:34,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627838181] [2024-11-28 04:53:34,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:34,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:34,564 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 04:53:34,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:34,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627838181] [2024-11-28 04:53:34,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627838181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:34,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:34,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:53:34,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501775683] [2024-11-28 04:53:34,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:34,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:53:34,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:34,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:53:34,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:53:34,610 INFO L87 Difference]: Start difference. First operand has 84 states, 47 states have (on average 1.7872340425531914) internal successors, (84), 75 states have internal predecessors, (84), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) 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 04:53:34,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:34,660 INFO L93 Difference]: Finished difference Result 164 states and 198 transitions. [2024-11-28 04:53:34,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:53:34,663 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 04:53:34,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:34,671 INFO L225 Difference]: With dead ends: 164 [2024-11-28 04:53:34,672 INFO L226 Difference]: Without dead ends: 76 [2024-11-28 04:53:34,676 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 04:53:34,680 INFO L435 NwaCegarLoop]: 93 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, 93 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 04:53:34,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:34,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-28 04:53:34,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-28 04:53:34,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 42 states have (on average 1.7619047619047619) internal successors, (74), 69 states have internal predecessors, (74), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 04:53:34,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2024-11-28 04:53:34,737 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 6 [2024-11-28 04:53:34,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:34,737 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2024-11-28 04:53:34,738 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 04:53:34,738 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2024-11-28 04:53:34,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 04:53:34,739 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:34,739 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:53:34,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:53:34,739 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:34,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash 889568326, now seen corresponding path program 1 times [2024-11-28 04:53:34,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:34,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22710555] [2024-11-28 04:53:34,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:34,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:34,859 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 04:53:34,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:34,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22710555] [2024-11-28 04:53:34,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22710555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:34,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:34,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:53:34,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167642420] [2024-11-28 04:53:34,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:34,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:34,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:34,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:34,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:34,864 INFO L87 Difference]: Start difference. First operand 76 states and 84 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 04:53:34,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:34,971 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2024-11-28 04:53:34,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:53:34,971 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 04:53:34,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:34,973 INFO L225 Difference]: With dead ends: 85 [2024-11-28 04:53:34,973 INFO L226 Difference]: Without dead ends: 84 [2024-11-28 04:53:34,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:34,975 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 34 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 202 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 04:53:34,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 202 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:34,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-28 04:53:35,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 79. [2024-11-28 04:53:35,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 71 states have internal predecessors, (76), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 04:53:35,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2024-11-28 04:53:35,012 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 6 [2024-11-28 04:53:35,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:35,012 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2024-11-28 04:53:35,012 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 04:53:35,012 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2024-11-28 04:53:35,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 04:53:35,013 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:35,013 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:35,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:53:35,015 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:35,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:35,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1806814377, now seen corresponding path program 1 times [2024-11-28 04:53:35,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:35,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566899119] [2024-11-28 04:53:35,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:35,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:35,150 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 04:53:35,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:35,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566899119] [2024-11-28 04:53:35,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566899119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:35,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:35,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:53:35,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308895221] [2024-11-28 04:53:35,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:35,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:35,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:35,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:35,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:35,152 INFO L87 Difference]: Start difference. First operand 79 states and 86 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 04:53:35,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:35,236 INFO L93 Difference]: Finished difference Result 134 states and 145 transitions. [2024-11-28 04:53:35,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:53:35,237 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 04:53:35,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:35,239 INFO L225 Difference]: With dead ends: 134 [2024-11-28 04:53:35,239 INFO L226 Difference]: Without dead ends: 83 [2024-11-28 04:53:35,239 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 04:53:35,240 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 3 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:35,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 229 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:35,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-28 04:53:35,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-28 04:53:35,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 49 states have (on average 1.6326530612244898) internal successors, (80), 75 states have internal predecessors, (80), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 04:53:35,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2024-11-28 04:53:35,257 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 7 [2024-11-28 04:53:35,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:35,257 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2024-11-28 04:53:35,257 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 04:53:35,257 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2024-11-28 04:53:35,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 04:53:35,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:35,258 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:35,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:53:35,259 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:35,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:35,262 INFO L85 PathProgramCache]: Analyzing trace with hash -428529012, now seen corresponding path program 1 times [2024-11-28 04:53:35,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:35,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95345471] [2024-11-28 04:53:35,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:35,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:53:35,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250159237] [2024-11-28 04:53:35,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:35,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:35,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:35,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:35,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:53:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:35,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:53:35,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:53:35,467 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:53:35,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:35,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95345471] [2024-11-28 04:53:35,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:35,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250159237] [2024-11-28 04:53:35,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250159237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:35,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:35,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:53:35,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525540850] [2024-11-28 04:53:35,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:35,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:35,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:35,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:35,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:35,472 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:53:35,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:35,628 INFO L93 Difference]: Finished difference Result 176 states and 195 transitions. [2024-11-28 04:53:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:35,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-28 04:53:35,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:35,631 INFO L225 Difference]: With dead ends: 176 [2024-11-28 04:53:35,631 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 04:53:35,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:35,633 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 33 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:35,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 135 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:35,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 04:53:35,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 106. [2024-11-28 04:53:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 67 states have (on average 1.6119402985074627) internal successors, (108), 93 states have internal predecessors, (108), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:53:35,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 128 transitions. [2024-11-28 04:53:35,661 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 128 transitions. Word has length 19 [2024-11-28 04:53:35,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:35,661 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 128 transitions. [2024-11-28 04:53:35,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:53:35,662 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 128 transitions. [2024-11-28 04:53:35,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 04:53:35,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:35,663 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:35,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:35,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:35,864 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:35,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:35,864 INFO L85 PathProgramCache]: Analyzing trace with hash -889746394, now seen corresponding path program 1 times [2024-11-28 04:53:35,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:35,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578658855] [2024-11-28 04:53:35,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:35,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:53:36,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:36,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578658855] [2024-11-28 04:53:36,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578658855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:36,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:36,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:53:36,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327741612] [2024-11-28 04:53:36,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:36,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:36,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:36,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:36,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:36,069 INFO L87 Difference]: Start difference. First operand 106 states and 128 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:36,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:36,153 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2024-11-28 04:53:36,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:36,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-11-28 04:53:36,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:36,156 INFO L225 Difference]: With dead ends: 106 [2024-11-28 04:53:36,156 INFO L226 Difference]: Without dead ends: 104 [2024-11-28 04:53:36,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:36,158 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 47 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:36,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 70 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:36,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-28 04:53:36,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-28 04:53:36,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.5671641791044777) internal successors, (105), 91 states have internal predecessors, (105), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:53:36,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 125 transitions. [2024-11-28 04:53:36,172 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 125 transitions. Word has length 27 [2024-11-28 04:53:36,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:36,173 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 125 transitions. [2024-11-28 04:53:36,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:36,173 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 125 transitions. [2024-11-28 04:53:36,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:53:36,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:36,174 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:36,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:53:36,175 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:36,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:36,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1812335907, now seen corresponding path program 1 times [2024-11-28 04:53:36,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:36,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542954729] [2024-11-28 04:53:36,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:36,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:36,389 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:53:36,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:36,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542954729] [2024-11-28 04:53:36,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542954729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:36,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:36,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:53:36,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872871562] [2024-11-28 04:53:36,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:36,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:36,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:36,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:36,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:36,393 INFO L87 Difference]: Start difference. First operand 104 states and 125 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:36,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:36,530 INFO L93 Difference]: Finished difference Result 104 states and 125 transitions. [2024-11-28 04:53:36,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:53:36,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2024-11-28 04:53:36,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:36,532 INFO L225 Difference]: With dead ends: 104 [2024-11-28 04:53:36,532 INFO L226 Difference]: Without dead ends: 103 [2024-11-28 04:53:36,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:53:36,533 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 72 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:36,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 205 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:36,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-28 04:53:36,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-11-28 04:53:36,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 67 states have (on average 1.537313432835821) internal successors, (103), 90 states have internal predecessors, (103), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:53:36,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2024-11-28 04:53:36,558 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 28 [2024-11-28 04:53:36,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:36,559 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2024-11-28 04:53:36,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:36,559 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2024-11-28 04:53:36,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:53:36,560 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:36,560 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:36,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:53:36,561 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:36,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:36,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1812334369, now seen corresponding path program 1 times [2024-11-28 04:53:36,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:36,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29735588] [2024-11-28 04:53:36,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:36,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:36,761 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:53:36,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:36,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29735588] [2024-11-28 04:53:36,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29735588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:36,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:36,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:53:36,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165523063] [2024-11-28 04:53:36,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:36,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:36,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:36,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:36,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:36,764 INFO L87 Difference]: Start difference. First operand 103 states and 123 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:36,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:36,857 INFO L93 Difference]: Finished difference Result 113 states and 130 transitions. [2024-11-28 04:53:36,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:36,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2024-11-28 04:53:36,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:36,860 INFO L225 Difference]: With dead ends: 113 [2024-11-28 04:53:36,860 INFO L226 Difference]: Without dead ends: 112 [2024-11-28 04:53:36,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:36,862 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 21 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:36,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 126 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:36,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-28 04:53:36,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 103. [2024-11-28 04:53:36,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 90 states have internal predecessors, (102), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:53:36,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2024-11-28 04:53:36,893 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 28 [2024-11-28 04:53:36,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:36,897 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2024-11-28 04:53:36,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:36,897 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2024-11-28 04:53:36,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 04:53:36,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:36,898 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:36,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:53:36,899 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:36,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:36,900 INFO L85 PathProgramCache]: Analyzing trace with hash -347838186, now seen corresponding path program 1 times [2024-11-28 04:53:36,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:36,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345623023] [2024-11-28 04:53:36,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:36,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:37,066 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:53:37,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:37,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345623023] [2024-11-28 04:53:37,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345623023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:37,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:37,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:53:37,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141686688] [2024-11-28 04:53:37,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:37,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:37,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:37,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:37,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:37,068 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:37,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:37,209 INFO L93 Difference]: Finished difference Result 120 states and 136 transitions. [2024-11-28 04:53:37,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:53:37,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-28 04:53:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:37,214 INFO L225 Difference]: With dead ends: 120 [2024-11-28 04:53:37,214 INFO L226 Difference]: Without dead ends: 111 [2024-11-28 04:53:37,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:53:37,216 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 22 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:37,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 294 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:37,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-28 04:53:37,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 107. [2024-11-28 04:53:37,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 93 states have internal predecessors, (103), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:53:37,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 123 transitions. [2024-11-28 04:53:37,247 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 123 transitions. Word has length 29 [2024-11-28 04:53:37,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:37,248 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 123 transitions. [2024-11-28 04:53:37,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:37,249 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 123 transitions. [2024-11-28 04:53:37,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 04:53:37,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:37,250 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:37,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:53:37,252 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:37,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:37,253 INFO L85 PathProgramCache]: Analyzing trace with hash 734955099, now seen corresponding path program 1 times [2024-11-28 04:53:37,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:37,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359096421] [2024-11-28 04:53:37,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:37,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:53:37,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868121006] [2024-11-28 04:53:37,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:37,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:37,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:37,299 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:37,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:53:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:37,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:53:37,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:37,439 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:53:37,439 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:53:37,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:37,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359096421] [2024-11-28 04:53:37,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:37,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868121006] [2024-11-28 04:53:37,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868121006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:37,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:37,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:53:37,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111172961] [2024-11-28 04:53:37,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:37,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:37,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:37,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:37,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:37,443 INFO L87 Difference]: Start difference. First operand 107 states and 123 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:37,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:37,545 INFO L93 Difference]: Finished difference Result 145 states and 171 transitions. [2024-11-28 04:53:37,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:37,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-11-28 04:53:37,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:37,548 INFO L225 Difference]: With dead ends: 145 [2024-11-28 04:53:37,548 INFO L226 Difference]: Without dead ends: 141 [2024-11-28 04:53:37,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:37,550 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 41 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:37,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 102 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:37,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-28 04:53:37,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 127. [2024-11-28 04:53:37,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 88 states have (on average 1.4772727272727273) internal successors, (130), 111 states have internal predecessors, (130), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:53:37,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 154 transitions. [2024-11-28 04:53:37,585 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 154 transitions. Word has length 31 [2024-11-28 04:53:37,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:37,585 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 154 transitions. [2024-11-28 04:53:37,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:37,585 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 154 transitions. [2024-11-28 04:53:37,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 04:53:37,586 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:37,586 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:37,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:53:37,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:37,787 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:37,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:37,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1917216573, now seen corresponding path program 1 times [2024-11-28 04:53:37,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:37,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486568808] [2024-11-28 04:53:37,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:37,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:37,940 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:53:37,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:37,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486568808] [2024-11-28 04:53:37,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486568808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:37,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:37,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:37,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104729644] [2024-11-28 04:53:37,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:37,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:37,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:37,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:37,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:37,944 INFO L87 Difference]: Start difference. First operand 127 states and 154 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:38,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:38,385 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2024-11-28 04:53:38,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:53:38,386 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2024-11-28 04:53:38,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:38,387 INFO L225 Difference]: With dead ends: 151 [2024-11-28 04:53:38,388 INFO L226 Difference]: Without dead ends: 150 [2024-11-28 04:53:38,388 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 04:53:38,394 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:38,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 113 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:53:38,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-28 04:53:38,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 134. [2024-11-28 04:53:38,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 95 states have (on average 1.4631578947368422) internal successors, (139), 118 states have internal predecessors, (139), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:53:38,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 163 transitions. [2024-11-28 04:53:38,436 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 163 transitions. Word has length 33 [2024-11-28 04:53:38,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:38,440 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 163 transitions. [2024-11-28 04:53:38,440 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 163 transitions. [2024-11-28 04:53:38,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 04:53:38,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:38,441 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:38,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:53:38,442 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:38,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:38,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1307306644, now seen corresponding path program 1 times [2024-11-28 04:53:38,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:38,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772066421] [2024-11-28 04:53:38,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:38,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:38,600 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:53:38,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:38,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772066421] [2024-11-28 04:53:38,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772066421] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:38,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221080141] [2024-11-28 04:53:38,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:38,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:38,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:38,606 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:38,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:53:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:38,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:53:38,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:38,843 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:53:38,843 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:39,009 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:53:39,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221080141] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:39,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:39,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 9 [2024-11-28 04:53:39,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705459626] [2024-11-28 04:53:39,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:39,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:53:39,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:39,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:53:39,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:53:39,012 INFO L87 Difference]: Start difference. First operand 134 states and 163 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:53:39,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:39,329 INFO L93 Difference]: Finished difference Result 267 states and 325 transitions. [2024-11-28 04:53:39,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:53:39,330 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 33 [2024-11-28 04:53:39,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:39,333 INFO L225 Difference]: With dead ends: 267 [2024-11-28 04:53:39,333 INFO L226 Difference]: Without dead ends: 191 [2024-11-28 04:53:39,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:53:39,337 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 83 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:39,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 270 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:39,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-28 04:53:39,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 173. [2024-11-28 04:53:39,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 126 states have (on average 1.4523809523809523) internal successors, (183), 149 states have internal predecessors, (183), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:53:39,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 219 transitions. [2024-11-28 04:53:39,391 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 219 transitions. Word has length 33 [2024-11-28 04:53:39,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:39,392 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 219 transitions. [2024-11-28 04:53:39,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:53:39,392 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 219 transitions. [2024-11-28 04:53:39,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 04:53:39,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:39,394 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:39,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:39,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:39,595 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:39,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:39,596 INFO L85 PathProgramCache]: Analyzing trace with hash -695828284, now seen corresponding path program 1 times [2024-11-28 04:53:39,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:39,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660400405] [2024-11-28 04:53:39,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:39,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:53:39,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455724693] [2024-11-28 04:53:39,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:39,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:39,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:39,624 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:39,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:53:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:39,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:53:39,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:39,935 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:53:39,935 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:53:39,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:39,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660400405] [2024-11-28 04:53:39,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:39,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455724693] [2024-11-28 04:53:39,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455724693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:39,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:39,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:39,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448250068] [2024-11-28 04:53:39,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:39,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:39,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:39,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:39,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:39,938 INFO L87 Difference]: Start difference. First operand 173 states and 219 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:40,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:40,236 INFO L93 Difference]: Finished difference Result 179 states and 224 transitions. [2024-11-28 04:53:40,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:53:40,237 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-11-28 04:53:40,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:40,239 INFO L225 Difference]: With dead ends: 179 [2024-11-28 04:53:40,240 INFO L226 Difference]: Without dead ends: 176 [2024-11-28 04:53:40,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 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 04:53:40,241 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 24 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:40,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 139 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:53:40,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-28 04:53:40,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-28 04:53:40,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 129 states have (on average 1.434108527131783) internal successors, (185), 152 states have internal predecessors, (185), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:53:40,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 221 transitions. [2024-11-28 04:53:40,286 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 221 transitions. Word has length 34 [2024-11-28 04:53:40,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:40,287 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 221 transitions. [2024-11-28 04:53:40,287 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:53:40,287 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 221 transitions. [2024-11-28 04:53:40,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 04:53:40,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:40,290 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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 04:53:40,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:40,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:53:40,493 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:40,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:40,494 INFO L85 PathProgramCache]: Analyzing trace with hash 830039759, now seen corresponding path program 1 times [2024-11-28 04:53:40,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:40,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520493658] [2024-11-28 04:53:40,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:40,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:53:40,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869023935] [2024-11-28 04:53:40,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:40,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:40,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:40,528 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:40,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:53:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:40,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:53:40,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:53:40,689 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:53:40,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:40,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520493658] [2024-11-28 04:53:40,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:40,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869023935] [2024-11-28 04:53:40,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869023935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:40,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:40,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:40,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675709480] [2024-11-28 04:53:40,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:40,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:40,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:40,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:40,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:40,693 INFO L87 Difference]: Start difference. First operand 176 states and 221 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:40,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:40,839 INFO L93 Difference]: Finished difference Result 213 states and 261 transitions. [2024-11-28 04:53:40,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:53:40,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-11-28 04:53:40,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:40,842 INFO L225 Difference]: With dead ends: 213 [2024-11-28 04:53:40,842 INFO L226 Difference]: Without dead ends: 203 [2024-11-28 04:53:40,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 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 04:53:40,843 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 82 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:40,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 144 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:40,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-28 04:53:40,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 185. [2024-11-28 04:53:40,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 140 states have (on average 1.3571428571428572) internal successors, (190), 159 states have internal predecessors, (190), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 04:53:40,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 230 transitions. [2024-11-28 04:53:40,894 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 230 transitions. Word has length 45 [2024-11-28 04:53:40,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:40,895 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 230 transitions. [2024-11-28 04:53:40,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:40,896 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 230 transitions. [2024-11-28 04:53:40,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 04:53:40,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:40,899 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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 04:53:40,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:53:41,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:41,103 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:41,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:41,103 INFO L85 PathProgramCache]: Analyzing trace with hash -38571188, now seen corresponding path program 1 times [2024-11-28 04:53:41,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:41,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780732641] [2024-11-28 04:53:41,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:41,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:53:41,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1510463526] [2024-11-28 04:53:41,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:41,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:41,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:41,132 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:41,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:53:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:41,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:53:41,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:41,295 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:53:41,297 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:41,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:41,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780732641] [2024-11-28 04:53:41,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:41,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510463526] [2024-11-28 04:53:41,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510463526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:41,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:53:41,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-28 04:53:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85607341] [2024-11-28 04:53:41,445 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:41,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:41,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:41,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:41,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:41,448 INFO L87 Difference]: Start difference. First operand 185 states and 230 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:41,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:41,638 INFO L93 Difference]: Finished difference Result 281 states and 347 transitions. [2024-11-28 04:53:41,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:53:41,639 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-11-28 04:53:41,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:41,643 INFO L225 Difference]: With dead ends: 281 [2024-11-28 04:53:41,643 INFO L226 Difference]: Without dead ends: 277 [2024-11-28 04:53:41,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 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 04:53:41,645 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 67 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:41,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 186 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:41,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-28 04:53:41,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 245. [2024-11-28 04:53:41,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 194 states have (on average 1.3814432989690721) internal successors, (268), 213 states have internal predecessors, (268), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 04:53:41,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 320 transitions. [2024-11-28 04:53:41,706 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 320 transitions. Word has length 46 [2024-11-28 04:53:41,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:41,706 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 320 transitions. [2024-11-28 04:53:41,707 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:41,707 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 320 transitions. [2024-11-28 04:53:41,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 04:53:41,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:41,711 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:53:41,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:41,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:41,912 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:41,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:41,913 INFO L85 PathProgramCache]: Analyzing trace with hash 67151589, now seen corresponding path program 1 times [2024-11-28 04:53:41,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:41,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137551041] [2024-11-28 04:53:41,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:41,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:42,064 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:53:42,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:42,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137551041] [2024-11-28 04:53:42,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137551041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:42,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:42,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:42,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118402120] [2024-11-28 04:53:42,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:42,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:42,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:42,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:42,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:42,067 INFO L87 Difference]: Start difference. First operand 245 states and 320 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:53:42,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:42,309 INFO L93 Difference]: Finished difference Result 256 states and 331 transitions. [2024-11-28 04:53:42,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:53:42,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2024-11-28 04:53:42,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:42,313 INFO L225 Difference]: With dead ends: 256 [2024-11-28 04:53:42,313 INFO L226 Difference]: Without dead ends: 239 [2024-11-28 04:53:42,314 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 04:53:42,314 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 51 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:42,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 134 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:53:42,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-28 04:53:42,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 230. [2024-11-28 04:53:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 181 states have (on average 1.4033149171270718) internal successors, (254), 200 states have internal predecessors, (254), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:53:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 302 transitions. [2024-11-28 04:53:42,374 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 302 transitions. Word has length 50 [2024-11-28 04:53:42,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:42,375 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 302 transitions. [2024-11-28 04:53:42,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:53:42,376 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 302 transitions. [2024-11-28 04:53:42,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 04:53:42,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:42,377 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:42,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:53:42,378 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:42,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:42,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1825449988, now seen corresponding path program 1 times [2024-11-28 04:53:42,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:42,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244574177] [2024-11-28 04:53:42,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:42,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:42,565 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:53:42,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:42,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244574177] [2024-11-28 04:53:42,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244574177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:42,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318997438] [2024-11-28 04:53:42,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:42,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:42,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:42,569 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:42,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:53:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:42,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:53:42,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:53:42,748 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:42,884 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:53:42,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318997438] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:42,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:42,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-28 04:53:42,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075969157] [2024-11-28 04:53:42,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:42,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:42,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:42,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:42,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:42,887 INFO L87 Difference]: Start difference. First operand 230 states and 302 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:53:43,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:43,203 INFO L93 Difference]: Finished difference Result 364 states and 468 transitions. [2024-11-28 04:53:43,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:53:43,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 54 [2024-11-28 04:53:43,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:43,207 INFO L225 Difference]: With dead ends: 364 [2024-11-28 04:53:43,208 INFO L226 Difference]: Without dead ends: 362 [2024-11-28 04:53:43,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:43,209 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 150 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:43,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 256 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:53:43,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-28 04:53:43,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 299. [2024-11-28 04:53:43,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 241 states have (on average 1.4190871369294606) internal successors, (342), 260 states have internal predecessors, (342), 33 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:53:43,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 408 transitions. [2024-11-28 04:53:43,262 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 408 transitions. Word has length 54 [2024-11-28 04:53:43,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:43,262 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 408 transitions. [2024-11-28 04:53:43,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:53:43,263 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 408 transitions. [2024-11-28 04:53:43,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 04:53:43,264 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:43,264 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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 04:53:43,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:53:43,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:53:43,465 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:43,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:43,466 INFO L85 PathProgramCache]: Analyzing trace with hash -754422375, now seen corresponding path program 1 times [2024-11-28 04:53:43,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:43,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518364923] [2024-11-28 04:53:43,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:43,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:43,647 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:53:43,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:43,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518364923] [2024-11-28 04:53:43,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518364923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:43,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100658091] [2024-11-28 04:53:43,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:43,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:43,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:43,651 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:43,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:53:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:43,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:53:43,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:53:43,828 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:44,036 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:53:44,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100658091] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:44,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:44,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2024-11-28 04:53:44,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501268587] [2024-11-28 04:53:44,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:44,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:53:44,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:44,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:53:44,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:53:44,041 INFO L87 Difference]: Start difference. First operand 299 states and 408 transitions. Second operand has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 04:53:44,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:44,546 INFO L93 Difference]: Finished difference Result 346 states and 451 transitions. [2024-11-28 04:53:44,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:53:44,546 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 55 [2024-11-28 04:53:44,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:44,553 INFO L225 Difference]: With dead ends: 346 [2024-11-28 04:53:44,553 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 04:53:44,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:53:44,556 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 125 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:44,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 582 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:53:44,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 04:53:44,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 322. [2024-11-28 04:53:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 262 states have (on average 1.3931297709923665) internal successors, (365), 281 states have internal predecessors, (365), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:53:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 431 transitions. [2024-11-28 04:53:44,612 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 431 transitions. Word has length 55 [2024-11-28 04:53:44,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:44,613 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 431 transitions. [2024-11-28 04:53:44,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 04:53:44,613 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 431 transitions. [2024-11-28 04:53:44,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:53:44,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:44,614 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1] [2024-11-28 04:53:44,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:44,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:53:44,815 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:44,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:44,816 INFO L85 PathProgramCache]: Analyzing trace with hash -600844767, now seen corresponding path program 1 times [2024-11-28 04:53:44,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:44,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122071150] [2024-11-28 04:53:44,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:44,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:53:44,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990081809] [2024-11-28 04:53:44,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:44,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:44,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:44,855 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:44,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:53:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:44,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:53:44,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:45,276 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:53:45,277 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:45,540 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:53:45,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:45,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122071150] [2024-11-28 04:53:45,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:45,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990081809] [2024-11-28 04:53:45,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990081809] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:45,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:53:45,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-28 04:53:45,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702968166] [2024-11-28 04:53:45,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:45,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:53:45,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:45,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:53:45,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:53:45,543 INFO L87 Difference]: Start difference. First operand 322 states and 431 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:53:46,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:46,381 INFO L93 Difference]: Finished difference Result 367 states and 486 transitions. [2024-11-28 04:53:46,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:53:46,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 60 [2024-11-28 04:53:46,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:46,387 INFO L225 Difference]: With dead ends: 367 [2024-11-28 04:53:46,387 INFO L226 Difference]: Without dead ends: 361 [2024-11-28 04:53:46,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:53:46,388 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 257 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:46,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 201 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:53:46,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-28 04:53:46,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 325. [2024-11-28 04:53:46,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 265 states have (on average 1.3584905660377358) internal successors, (360), 284 states have internal predecessors, (360), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:53:46,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 426 transitions. [2024-11-28 04:53:46,446 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 426 transitions. Word has length 60 [2024-11-28 04:53:46,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:46,447 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 426 transitions. [2024-11-28 04:53:46,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:53:46,447 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 426 transitions. [2024-11-28 04:53:46,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 04:53:46,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:46,449 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1] [2024-11-28 04:53:46,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:46,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:53:46,654 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:46,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:46,655 INFO L85 PathProgramCache]: Analyzing trace with hash -670707024, now seen corresponding path program 1 times [2024-11-28 04:53:46,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:46,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010097750] [2024-11-28 04:53:46,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:46,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:53:46,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:46,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010097750] [2024-11-28 04:53:46,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010097750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:46,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47267237] [2024-11-28 04:53:46,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:46,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:46,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:46,844 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:46,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:53:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:46,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:53:46,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:47,044 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:53:47,044 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:53:47,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47267237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:47,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:47,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2024-11-28 04:53:47,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389666021] [2024-11-28 04:53:47,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:47,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:53:47,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:47,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:53:47,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:53:47,256 INFO L87 Difference]: Start difference. First operand 325 states and 426 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 04:53:47,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:47,706 INFO L93 Difference]: Finished difference Result 513 states and 670 transitions. [2024-11-28 04:53:47,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:53:47,707 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 68 [2024-11-28 04:53:47,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:47,710 INFO L225 Difference]: With dead ends: 513 [2024-11-28 04:53:47,711 INFO L226 Difference]: Without dead ends: 363 [2024-11-28 04:53:47,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:53:47,713 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 89 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:47,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 465 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:53:47,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-28 04:53:47,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 349. [2024-11-28 04:53:47,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 285 states have (on average 1.343859649122807) internal successors, (383), 304 states have internal predecessors, (383), 36 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:53:47,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 455 transitions. [2024-11-28 04:53:47,768 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 455 transitions. Word has length 68 [2024-11-28 04:53:47,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:47,769 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 455 transitions. [2024-11-28 04:53:47,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 04:53:47,769 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 455 transitions. [2024-11-28 04:53:47,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 04:53:47,770 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:47,771 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 04:53:47,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:53:47,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:47,971 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:47,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:47,972 INFO L85 PathProgramCache]: Analyzing trace with hash -190929623, now seen corresponding path program 2 times [2024-11-28 04:53:47,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:47,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295933377] [2024-11-28 04:53:47,972 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:47,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:47,999 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:53:47,999 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:53:48,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [723987883] [2024-11-28 04:53:48,000 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:48,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:48,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:48,007 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:48,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:53:48,077 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:53:48,078 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:48,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:53:48,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:53:48,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:48,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:48,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295933377] [2024-11-28 04:53:48,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:48,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723987883] [2024-11-28 04:53:48,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723987883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:48,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:53:48,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 04:53:48,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681942786] [2024-11-28 04:53:48,264 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:48,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:53:48,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:48,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:53:48,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:48,265 INFO L87 Difference]: Start difference. First operand 349 states and 455 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:53:48,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:48,488 INFO L93 Difference]: Finished difference Result 498 states and 639 transitions. [2024-11-28 04:53:48,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:53:48,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 72 [2024-11-28 04:53:48,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:48,493 INFO L225 Difference]: With dead ends: 498 [2024-11-28 04:53:48,493 INFO L226 Difference]: Without dead ends: 494 [2024-11-28 04:53:48,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:48,495 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 96 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:48,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 248 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:53:48,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-28 04:53:48,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 380. [2024-11-28 04:53:48,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 312 states have (on average 1.3237179487179487) internal successors, (413), 331 states have internal predecessors, (413), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 04:53:48,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 493 transitions. [2024-11-28 04:53:48,558 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 493 transitions. Word has length 72 [2024-11-28 04:53:48,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:48,559 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 493 transitions. [2024-11-28 04:53:48,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:53:48,559 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 493 transitions. [2024-11-28 04:53:48,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 04:53:48,560 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:48,560 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:48,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:53:48,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:48,762 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:48,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:48,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1195804399, now seen corresponding path program 1 times [2024-11-28 04:53:48,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:48,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216832292] [2024-11-28 04:53:48,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:48,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 04:53:48,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:48,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216832292] [2024-11-28 04:53:48,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216832292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:48,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:48,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:53:48,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062950155] [2024-11-28 04:53:48,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:48,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:48,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:48,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:48,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:48,864 INFO L87 Difference]: Start difference. First operand 380 states and 493 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:53:48,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:48,979 INFO L93 Difference]: Finished difference Result 380 states and 493 transitions. [2024-11-28 04:53:48,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:48,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2024-11-28 04:53:48,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:48,984 INFO L225 Difference]: With dead ends: 380 [2024-11-28 04:53:48,984 INFO L226 Difference]: Without dead ends: 379 [2024-11-28 04:53:48,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:48,986 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 2 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:48,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 118 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-28 04:53:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2024-11-28 04:53:49,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 312 states have (on average 1.310897435897436) internal successors, (409), 330 states have internal predecessors, (409), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 04:53:49,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 489 transitions. [2024-11-28 04:53:49,049 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 489 transitions. Word has length 79 [2024-11-28 04:53:49,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:49,049 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 489 transitions. [2024-11-28 04:53:49,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:53:49,050 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 489 transitions. [2024-11-28 04:53:49,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 04:53:49,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:49,051 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:49,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:53:49,052 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:49,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:49,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1584769172, now seen corresponding path program 1 times [2024-11-28 04:53:49,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:49,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765735173] [2024-11-28 04:53:49,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:49,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:49,330 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 04:53:49,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:49,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765735173] [2024-11-28 04:53:49,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765735173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:49,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:49,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:53:49,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035829116] [2024-11-28 04:53:49,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:49,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:49,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:49,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:49,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:49,334 INFO L87 Difference]: Start difference. First operand 379 states and 489 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:49,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:49,860 INFO L93 Difference]: Finished difference Result 579 states and 774 transitions. [2024-11-28 04:53:49,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:53:49,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-28 04:53:49,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:49,865 INFO L225 Difference]: With dead ends: 579 [2024-11-28 04:53:49,865 INFO L226 Difference]: Without dead ends: 578 [2024-11-28 04:53:49,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:53:49,868 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 126 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:49,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 221 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:53:49,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-11-28 04:53:49,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 517. [2024-11-28 04:53:49,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 436 states have (on average 1.3669724770642202) internal successors, (596), 454 states have internal predecessors, (596), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:53:49,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 704 transitions. [2024-11-28 04:53:49,949 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 704 transitions. Word has length 80 [2024-11-28 04:53:49,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:49,949 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 704 transitions. [2024-11-28 04:53:49,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:49,950 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 704 transitions. [2024-11-28 04:53:49,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:53:49,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:49,951 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:49,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:53:49,951 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:49,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:49,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1883203951, now seen corresponding path program 1 times [2024-11-28 04:53:49,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:49,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436337890] [2024-11-28 04:53:49,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:49,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:50,211 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:53:50,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:50,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436337890] [2024-11-28 04:53:50,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436337890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:50,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785305766] [2024-11-28 04:53:50,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:50,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:50,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:50,215 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:50,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:53:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:50,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:53:50,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:50,670 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 04:53:50,670 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:53:50,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785305766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:50,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:53:50,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-28 04:53:50,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752143237] [2024-11-28 04:53:50,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:50,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:53:50,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:50,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:53:50,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:53:50,672 INFO L87 Difference]: Start difference. First operand 517 states and 704 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:53:51,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:51,101 INFO L93 Difference]: Finished difference Result 562 states and 753 transitions. [2024-11-28 04:53:51,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:53:51,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 81 [2024-11-28 04:53:51,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:51,105 INFO L225 Difference]: With dead ends: 562 [2024-11-28 04:53:51,106 INFO L226 Difference]: Without dead ends: 561 [2024-11-28 04:53:51,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:53:51,108 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 73 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:51,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 172 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:53:51,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-28 04:53:51,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 529. [2024-11-28 04:53:51,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 448 states have (on average 1.3571428571428572) internal successors, (608), 466 states have internal predecessors, (608), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:53:51,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 716 transitions. [2024-11-28 04:53:51,210 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 716 transitions. Word has length 81 [2024-11-28 04:53:51,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:51,210 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 716 transitions. [2024-11-28 04:53:51,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:53:51,211 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 716 transitions. [2024-11-28 04:53:51,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-28 04:53:51,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:51,212 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:51,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:51,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 04:53:51,414 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:51,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:51,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1750219790, now seen corresponding path program 1 times [2024-11-28 04:53:51,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:51,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150907929] [2024-11-28 04:53:51,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:51,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:51,684 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:53:51,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:51,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150907929] [2024-11-28 04:53:51,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150907929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:51,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871624989] [2024-11-28 04:53:51,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:51,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:51,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:51,687 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:51,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:53:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:51,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:53:51,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:52,001 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 04:53:52,002 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:53:52,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871624989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:52,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:53:52,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-28 04:53:52,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334150875] [2024-11-28 04:53:52,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:52,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:52,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:52,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:52,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:52,004 INFO L87 Difference]: Start difference. First operand 529 states and 716 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:53:52,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:52,312 INFO L93 Difference]: Finished difference Result 544 states and 729 transitions. [2024-11-28 04:53:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:53:52,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 82 [2024-11-28 04:53:52,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:52,316 INFO L225 Difference]: With dead ends: 544 [2024-11-28 04:53:52,316 INFO L226 Difference]: Without dead ends: 542 [2024-11-28 04:53:52,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:52,318 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 43 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:52,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 119 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:53:52,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-28 04:53:52,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 533. [2024-11-28 04:53:52,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 452 states have (on average 1.345132743362832) internal successors, (608), 470 states have internal predecessors, (608), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 04:53:52,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 716 transitions. [2024-11-28 04:53:52,416 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 716 transitions. Word has length 82 [2024-11-28 04:53:52,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:52,416 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 716 transitions. [2024-11-28 04:53:52,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:53:52,417 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 716 transitions. [2024-11-28 04:53:52,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 04:53:52,418 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:52,418 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:52,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 04:53:52,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 04:53:52,619 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:52,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:52,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1842142016, now seen corresponding path program 1 times [2024-11-28 04:53:52,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:52,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275137521] [2024-11-28 04:53:52,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:52,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:53:52,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:52,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275137521] [2024-11-28 04:53:52,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275137521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:52,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125463898] [2024-11-28 04:53:52,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:52,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:52,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:52,865 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:52,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:53:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:52,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:53:52,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:53,115 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:53:53,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:53,385 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:53:53,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125463898] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:53,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:53,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 18 [2024-11-28 04:53:53,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83360526] [2024-11-28 04:53:53,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:53,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:53:53,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:53,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:53:53,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:53:53,389 INFO L87 Difference]: Start difference. First operand 533 states and 716 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-28 04:53:54,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:54,054 INFO L93 Difference]: Finished difference Result 600 states and 786 transitions. [2024-11-28 04:53:54,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 04:53:54,055 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) Word has length 86 [2024-11-28 04:53:54,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:54,059 INFO L225 Difference]: With dead ends: 600 [2024-11-28 04:53:54,059 INFO L226 Difference]: Without dead ends: 588 [2024-11-28 04:53:54,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=334, Invalid=998, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:53:54,062 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 136 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:54,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 738 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:53:54,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-28 04:53:54,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 561. [2024-11-28 04:53:54,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 475 states have (on average 1.3305263157894738) internal successors, (632), 493 states have internal predecessors, (632), 57 states have call successors, (57), 10 states have call predecessors, (57), 10 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-28 04:53:54,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 746 transitions. [2024-11-28 04:53:54,157 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 746 transitions. Word has length 86 [2024-11-28 04:53:54,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:54,157 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 746 transitions. [2024-11-28 04:53:54,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-28 04:53:54,158 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 746 transitions. [2024-11-28 04:53:54,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:53:54,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:54,159 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:54,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:54,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 04:53:54,361 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:54,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:54,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2048291304, now seen corresponding path program 1 times [2024-11-28 04:53:54,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:54,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851662968] [2024-11-28 04:53:54,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:54,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:53:54,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [694224605] [2024-11-28 04:53:54,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:54,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:54,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:54,437 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:54,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:53:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:54,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:53:54,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:53:55,274 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:56,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:56,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851662968] [2024-11-28 04:53:56,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:56,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694224605] [2024-11-28 04:53:56,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694224605] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:56,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:53:56,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:53:56,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658334207] [2024-11-28 04:53:56,224 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:56,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:53:56,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:56,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:53:56,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:53:56,227 INFO L87 Difference]: Start difference. First operand 561 states and 746 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:53:57,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:57,099 INFO L93 Difference]: Finished difference Result 630 states and 838 transitions. [2024-11-28 04:53:57,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:53:57,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-11-28 04:53:57,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:57,105 INFO L225 Difference]: With dead ends: 630 [2024-11-28 04:53:57,105 INFO L226 Difference]: Without dead ends: 629 [2024-11-28 04:53:57,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:53:57,106 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 65 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:57,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 363 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:53:57,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-28 04:53:57,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 601. [2024-11-28 04:53:57,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 511 states have (on average 1.3268101761252447) internal successors, (678), 529 states have internal predecessors, (678), 61 states have call successors, (61), 10 states have call predecessors, (61), 10 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-28 04:53:57,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 800 transitions. [2024-11-28 04:53:57,207 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 800 transitions. Word has length 87 [2024-11-28 04:53:57,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:57,208 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 800 transitions. [2024-11-28 04:53:57,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:53:57,208 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 800 transitions. [2024-11-28 04:53:57,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:53:57,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:57,211 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:57,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:53:57,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:53:57,415 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:57,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:57,416 INFO L85 PathProgramCache]: Analyzing trace with hash -927478923, now seen corresponding path program 1 times [2024-11-28 04:53:57,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:57,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183267095] [2024-11-28 04:53:57,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:57,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:53:57,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204957041] [2024-11-28 04:53:57,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:57,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:57,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:57,450 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:57,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:53:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:57,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:53:57,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:58,247 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:53:58,249 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:58,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:58,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183267095] [2024-11-28 04:53:58,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:58,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204957041] [2024-11-28 04:53:58,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204957041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:58,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:53:58,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:53:58,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592600828] [2024-11-28 04:53:58,850 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:58,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:53:58,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:58,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:53:58,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:53:58,852 INFO L87 Difference]: Start difference. First operand 601 states and 800 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:53:59,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:59,463 INFO L93 Difference]: Finished difference Result 657 states and 878 transitions. [2024-11-28 04:53:59,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:53:59,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 88 [2024-11-28 04:53:59,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:59,468 INFO L225 Difference]: With dead ends: 657 [2024-11-28 04:53:59,468 INFO L226 Difference]: Without dead ends: 656 [2024-11-28 04:53:59,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:53:59,469 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 53 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:59,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 291 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:53:59,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-28 04:53:59,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 641. [2024-11-28 04:53:59,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 547 states have (on average 1.323583180987203) internal successors, (724), 565 states have internal predecessors, (724), 65 states have call successors, (65), 10 states have call predecessors, (65), 10 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 04:53:59,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 854 transitions. [2024-11-28 04:53:59,554 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 854 transitions. Word has length 88 [2024-11-28 04:53:59,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:59,555 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 854 transitions. [2024-11-28 04:53:59,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:53:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 854 transitions. [2024-11-28 04:53:59,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:53:59,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:59,557 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:59,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:59,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 04:53:59,761 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:59,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:59,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1312924554, now seen corresponding path program 1 times [2024-11-28 04:53:59,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:59,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847750496] [2024-11-28 04:53:59,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:59,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:59,912 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 04:53:59,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:59,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847750496] [2024-11-28 04:53:59,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847750496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:59,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:59,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:53:59,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613687550] [2024-11-28 04:53:59,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:59,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:53:59,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:59,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:53:59,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:59,916 INFO L87 Difference]: Start difference. First operand 641 states and 854 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:54:00,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:00,307 INFO L93 Difference]: Finished difference Result 646 states and 861 transitions. [2024-11-28 04:54:00,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:54:00,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 89 [2024-11-28 04:54:00,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:00,312 INFO L225 Difference]: With dead ends: 646 [2024-11-28 04:54:00,312 INFO L226 Difference]: Without dead ends: 645 [2024-11-28 04:54:00,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:54:00,313 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 89 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:00,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 112 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:54:00,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-28 04:54:00,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 640. [2024-11-28 04:54:00,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 547 states have (on average 1.3089579524680073) internal successors, (716), 564 states have internal predecessors, (716), 65 states have call successors, (65), 10 states have call predecessors, (65), 10 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 04:54:00,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 846 transitions. [2024-11-28 04:54:00,402 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 846 transitions. Word has length 89 [2024-11-28 04:54:00,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:00,402 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 846 transitions. [2024-11-28 04:54:00,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:54:00,403 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 846 transitions. [2024-11-28 04:54:00,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:54:00,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:00,407 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:00,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 04:54:00,408 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:00,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:00,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2045955607, now seen corresponding path program 1 times [2024-11-28 04:54:00,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:00,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532227237] [2024-11-28 04:54:00,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:00,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:54:00,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1790137896] [2024-11-28 04:54:00,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:00,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:00,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:00,453 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:00,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:54:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:00,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:54:00,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:54:01,889 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:06,481 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:54:06,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:06,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532227237] [2024-11-28 04:54:06,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:54:06,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790137896] [2024-11-28 04:54:06,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790137896] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:06,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:54:06,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-28 04:54:06,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625037499] [2024-11-28 04:54:06,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:06,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:54:06,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:06,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:54:06,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:54:06,485 INFO L87 Difference]: Start difference. First operand 640 states and 846 transitions. Second operand has 20 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 20 states have internal predecessors, (100), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:54:15,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:15,983 INFO L93 Difference]: Finished difference Result 809 states and 1078 transitions. [2024-11-28 04:54:15,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 04:54:15,984 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 20 states have internal predecessors, (100), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 90 [2024-11-28 04:54:15,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:15,992 INFO L225 Difference]: With dead ends: 809 [2024-11-28 04:54:15,992 INFO L226 Difference]: Without dead ends: 659 [2024-11-28 04:54:15,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=376, Invalid=814, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 04:54:15,994 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 329 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:15,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 375 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 04:54:15,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-28 04:54:16,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 595. [2024-11-28 04:54:16,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 508 states have (on average 1.3208661417322836) internal successors, (671), 525 states have internal predecessors, (671), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 04:54:16,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 789 transitions. [2024-11-28 04:54:16,091 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 789 transitions. Word has length 90 [2024-11-28 04:54:16,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:16,092 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 789 transitions. [2024-11-28 04:54:16,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 20 states have internal predecessors, (100), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:54:16,093 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 789 transitions. [2024-11-28 04:54:16,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 04:54:16,094 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:16,095 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-28 04:54:16,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:16,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 04:54:16,299 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:16,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:16,299 INFO L85 PathProgramCache]: Analyzing trace with hash -889582394, now seen corresponding path program 3 times [2024-11-28 04:54:16,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:16,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424243670] [2024-11-28 04:54:16,299 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:54:16,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:16,342 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:54:16,346 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:54:16,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738769018] [2024-11-28 04:54:16,347 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:54:16,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:16,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:16,351 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:16,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:54:16,485 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:54:16,486 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:16,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:54:16,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:16,747 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 26 proven. 38 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-28 04:54:16,747 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:17,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:17,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424243670] [2024-11-28 04:54:17,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:54:17,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738769018] [2024-11-28 04:54:17,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738769018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:17,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:54:17,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:54:17,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914274577] [2024-11-28 04:54:17,141 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:17,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:54:17,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:17,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:54:17,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:54:17,142 INFO L87 Difference]: Start difference. First operand 595 states and 789 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:54:18,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:54:20,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:20,360 INFO L93 Difference]: Finished difference Result 637 states and 826 transitions. [2024-11-28 04:54:20,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:54:20,360 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 98 [2024-11-28 04:54:20,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:20,363 INFO L225 Difference]: With dead ends: 637 [2024-11-28 04:54:20,363 INFO L226 Difference]: Without dead ends: 633 [2024-11-28 04:54:20,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:54:20,365 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 148 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:20,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 361 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 04:54:20,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-28 04:54:20,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 592. [2024-11-28 04:54:20,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 508 states have (on average 1.2834645669291338) internal successors, (652), 522 states have internal predecessors, (652), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 04:54:20,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 770 transitions. [2024-11-28 04:54:20,491 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 770 transitions. Word has length 98 [2024-11-28 04:54:20,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:20,491 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 770 transitions. [2024-11-28 04:54:20,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:54:20,492 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 770 transitions. [2024-11-28 04:54:20,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 04:54:20,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:20,494 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:20,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:54:20,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:20,699 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:20,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:20,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1088017770, now seen corresponding path program 1 times [2024-11-28 04:54:20,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:20,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672321347] [2024-11-28 04:54:20,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:20,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:54:20,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1544093893] [2024-11-28 04:54:20,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:20,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:20,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:20,745 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:20,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:54:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:20,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:54:20,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:21,585 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 04:54:21,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:22,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:22,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672321347] [2024-11-28 04:54:22,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:54:22,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544093893] [2024-11-28 04:54:22,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544093893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:22,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:54:22,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:54:22,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898768105] [2024-11-28 04:54:22,222 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:22,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:54:22,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:22,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:54:22,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:54:22,224 INFO L87 Difference]: Start difference. First operand 592 states and 770 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:54:22,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:22,801 INFO L93 Difference]: Finished difference Result 597 states and 777 transitions. [2024-11-28 04:54:22,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:54:22,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 104 [2024-11-28 04:54:22,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:22,805 INFO L225 Difference]: With dead ends: 597 [2024-11-28 04:54:22,805 INFO L226 Difference]: Without dead ends: 596 [2024-11-28 04:54:22,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:54:22,807 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 33 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:22,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 275 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:54:22,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-28 04:54:22,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 593. [2024-11-28 04:54:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 509 states have (on average 1.2829076620825148) internal successors, (653), 523 states have internal predecessors, (653), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 04:54:22,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 771 transitions. [2024-11-28 04:54:22,916 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 771 transitions. Word has length 104 [2024-11-28 04:54:22,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:22,917 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 771 transitions. [2024-11-28 04:54:22,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:54:22,918 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 771 transitions. [2024-11-28 04:54:22,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 04:54:22,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:22,920 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:22,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:23,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-28 04:54:23,123 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:23,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:23,124 INFO L85 PathProgramCache]: Analyzing trace with hash 631187635, now seen corresponding path program 1 times [2024-11-28 04:54:23,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:23,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555167348] [2024-11-28 04:54:23,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:23,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:54:23,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [533708350] [2024-11-28 04:54:23,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:23,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:23,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:23,168 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:23,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:54:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:23,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:54:23,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 04:54:24,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:25,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:25,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555167348] [2024-11-28 04:54:25,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:54:25,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533708350] [2024-11-28 04:54:25,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533708350] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:25,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:54:25,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:54:25,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885170361] [2024-11-28 04:54:25,423 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:25,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:54:25,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:25,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:54:25,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:54:25,425 INFO L87 Difference]: Start difference. First operand 593 states and 771 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:54:26,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:26,178 INFO L93 Difference]: Finished difference Result 902 states and 1210 transitions. [2024-11-28 04:54:26,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:54:26,178 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 105 [2024-11-28 04:54:26,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:26,181 INFO L225 Difference]: With dead ends: 902 [2024-11-28 04:54:26,181 INFO L226 Difference]: Without dead ends: 590 [2024-11-28 04:54:26,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:54:26,183 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 55 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:26,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 412 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:54:26,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-28 04:54:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 576. [2024-11-28 04:54:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 492 states have (on average 1.2906504065040652) internal successors, (635), 506 states have internal predecessors, (635), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 04:54:26,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 753 transitions. [2024-11-28 04:54:26,305 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 753 transitions. Word has length 105 [2024-11-28 04:54:26,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:26,306 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 753 transitions. [2024-11-28 04:54:26,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:54:26,306 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 753 transitions. [2024-11-28 04:54:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 04:54:26,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:26,310 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:26,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:26,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:26,515 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:26,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:26,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1908019656, now seen corresponding path program 1 times [2024-11-28 04:54:26,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:26,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121895213] [2024-11-28 04:54:26,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:26,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 04:54:26,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:26,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121895213] [2024-11-28 04:54:26,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121895213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:26,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:26,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:54:26,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363896490] [2024-11-28 04:54:26,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:26,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:54:26,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:26,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:54:26,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:54:26,661 INFO L87 Difference]: Start difference. First operand 576 states and 753 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:54:26,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:26,963 INFO L93 Difference]: Finished difference Result 576 states and 753 transitions. [2024-11-28 04:54:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:54:26,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 106 [2024-11-28 04:54:26,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:26,971 INFO L225 Difference]: With dead ends: 576 [2024-11-28 04:54:26,974 INFO L226 Difference]: Without dead ends: 575 [2024-11-28 04:54:26,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:54:26,975 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 56 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:26,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 140 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:54:26,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-28 04:54:27,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2024-11-28 04:54:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 492 states have (on average 1.2886178861788617) internal successors, (634), 505 states have internal predecessors, (634), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 04:54:27,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 752 transitions. [2024-11-28 04:54:27,078 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 752 transitions. Word has length 106 [2024-11-28 04:54:27,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:27,079 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 752 transitions. [2024-11-28 04:54:27,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:54:27,079 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 752 transitions. [2024-11-28 04:54:27,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:54:27,081 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:27,081 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1] [2024-11-28 04:54:27,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 04:54:27,081 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:27,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:27,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1615570216, now seen corresponding path program 1 times [2024-11-28 04:54:27,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:27,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920786320] [2024-11-28 04:54:27,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:27,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:27,220 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:54:27,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:27,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920786320] [2024-11-28 04:54:27,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920786320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:27,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392539426] [2024-11-28 04:54:27,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:27,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:27,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:27,224 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:27,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:54:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:27,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:54:27,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:27,427 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:54:27,427 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:27,639 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:54:27,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392539426] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:27,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:27,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 04:54:27,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514542271] [2024-11-28 04:54:27,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:27,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:54:27,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:27,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:54:27,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:54:27,641 INFO L87 Difference]: Start difference. First operand 575 states and 752 transitions. Second operand has 11 states, 10 states have (on average 10.8) internal successors, (108), 11 states have internal predecessors, (108), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-28 04:54:28,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:28,186 INFO L93 Difference]: Finished difference Result 1040 states and 1333 transitions. [2024-11-28 04:54:28,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:54:28,187 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.8) internal successors, (108), 11 states have internal predecessors, (108), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 108 [2024-11-28 04:54:28,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:28,192 INFO L225 Difference]: With dead ends: 1040 [2024-11-28 04:54:28,192 INFO L226 Difference]: Without dead ends: 1038 [2024-11-28 04:54:28,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:54:28,194 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 374 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:28,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 458 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:54:28,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2024-11-28 04:54:28,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 661. [2024-11-28 04:54:28,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 568 states have (on average 1.2693661971830985) internal successors, (721), 581 states have internal predecessors, (721), 69 states have call successors, (69), 10 states have call predecessors, (69), 10 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 04:54:28,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 859 transitions. [2024-11-28 04:54:28,312 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 859 transitions. Word has length 108 [2024-11-28 04:54:28,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:28,313 INFO L471 AbstractCegarLoop]: Abstraction has 661 states and 859 transitions. [2024-11-28 04:54:28,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.8) internal successors, (108), 11 states have internal predecessors, (108), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-28 04:54:28,313 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 859 transitions. [2024-11-28 04:54:28,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 04:54:28,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:28,315 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:28,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:28,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:28,516 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:28,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:28,517 INFO L85 PathProgramCache]: Analyzing trace with hash 980932949, now seen corresponding path program 1 times [2024-11-28 04:54:28,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:28,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50043578] [2024-11-28 04:54:28,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:28,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:54:28,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1298039956] [2024-11-28 04:54:28,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:28,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:28,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:28,551 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:28,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:54:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:28,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:54:28,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:29,112 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 04:54:29,113 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:37,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:37,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50043578] [2024-11-28 04:54:37,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:54:37,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298039956] [2024-11-28 04:54:37,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298039956] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:37,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:54:37,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:54:37,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300602236] [2024-11-28 04:54:37,333 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:37,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:54:37,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:37,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:54:37,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=62, Unknown=2, NotChecked=0, Total=90 [2024-11-28 04:54:37,334 INFO L87 Difference]: Start difference. First operand 661 states and 859 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:54:37,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:37,829 INFO L93 Difference]: Finished difference Result 704 states and 921 transitions. [2024-11-28 04:54:37,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:54:37,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 107 [2024-11-28 04:54:37,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:37,835 INFO L225 Difference]: With dead ends: 704 [2024-11-28 04:54:37,835 INFO L226 Difference]: Without dead ends: 699 [2024-11-28 04:54:37,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=26, Invalid=62, Unknown=2, NotChecked=0, Total=90 [2024-11-28 04:54:37,836 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 11 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:37,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 198 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:54:37,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-28 04:54:37,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 687. [2024-11-28 04:54:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 590 states have (on average 1.2779661016949153) internal successors, (754), 603 states have internal predecessors, (754), 73 states have call successors, (73), 10 states have call predecessors, (73), 10 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 04:54:37,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 900 transitions. [2024-11-28 04:54:37,965 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 900 transitions. Word has length 107 [2024-11-28 04:54:37,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:37,965 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 900 transitions. [2024-11-28 04:54:37,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:54:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 900 transitions. [2024-11-28 04:54:37,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:54:37,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:37,967 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2024-11-28 04:54:37,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:54:38,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:38,168 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:38,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:38,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2049423458, now seen corresponding path program 1 times [2024-11-28 04:54:38,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:38,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111732192] [2024-11-28 04:54:38,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:38,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:38,541 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 04:54:38,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:38,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111732192] [2024-11-28 04:54:38,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111732192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:38,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400237454] [2024-11-28 04:54:38,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:38,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:38,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:38,545 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:38,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:54:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:38,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:54:38,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 04:54:38,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:39,018 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 04:54:39,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400237454] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:39,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:39,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2024-11-28 04:54:39,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940007011] [2024-11-28 04:54:39,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:39,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:54:39,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:39,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:54:39,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:54:39,020 INFO L87 Difference]: Start difference. First operand 687 states and 900 transitions. Second operand has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2024-11-28 04:54:40,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:40,297 INFO L93 Difference]: Finished difference Result 1123 states and 1512 transitions. [2024-11-28 04:54:40,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:54:40,298 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 110 [2024-11-28 04:54:40,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:40,302 INFO L225 Difference]: With dead ends: 1123 [2024-11-28 04:54:40,302 INFO L226 Difference]: Without dead ends: 957 [2024-11-28 04:54:40,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:54:40,304 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 243 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:40,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 509 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:54:40,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2024-11-28 04:54:40,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 675. [2024-11-28 04:54:40,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 579 states have (on average 1.309153713298791) internal successors, (758), 592 states have internal predecessors, (758), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 04:54:40,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 904 transitions. [2024-11-28 04:54:40,434 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 904 transitions. Word has length 110 [2024-11-28 04:54:40,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:40,435 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 904 transitions. [2024-11-28 04:54:40,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2024-11-28 04:54:40,435 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 904 transitions. [2024-11-28 04:54:40,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 04:54:40,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:40,451 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:40,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 04:54:40,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-28 04:54:40,652 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:40,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:40,653 INFO L85 PathProgramCache]: Analyzing trace with hash -921355093, now seen corresponding path program 2 times [2024-11-28 04:54:40,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:40,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039414721] [2024-11-28 04:54:40,653 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:54:40,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:40,686 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:54:40,687 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:54:40,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248109213] [2024-11-28 04:54:40,688 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:54:40,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:40,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:40,691 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:40,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:54:40,784 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:54:40,784 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:40,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:54:40,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:41,108 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 34 proven. 5 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 04:54:41,108 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:42,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:42,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039414721] [2024-11-28 04:54:42,064 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:54:42,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248109213] [2024-11-28 04:54:42,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248109213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:42,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:54:42,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:54:42,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252202693] [2024-11-28 04:54:42,064 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:42,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:54:42,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:42,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:54:42,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:54:42,066 INFO L87 Difference]: Start difference. First operand 675 states and 904 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 04:54:42,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:42,397 INFO L93 Difference]: Finished difference Result 687 states and 916 transitions. [2024-11-28 04:54:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:54:42,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 113 [2024-11-28 04:54:42,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:42,401 INFO L225 Difference]: With dead ends: 687 [2024-11-28 04:54:42,401 INFO L226 Difference]: Without dead ends: 680 [2024-11-28 04:54:42,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:54:42,403 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 83 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:42,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 240 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:54:42,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-11-28 04:54:42,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 670. [2024-11-28 04:54:42,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 576 states have (on average 1.2482638888888888) internal successors, (719), 587 states have internal predecessors, (719), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 04:54:42,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 865 transitions. [2024-11-28 04:54:42,531 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 865 transitions. Word has length 113 [2024-11-28 04:54:42,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:42,532 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 865 transitions. [2024-11-28 04:54:42,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 04:54:42,532 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 865 transitions. [2024-11-28 04:54:42,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-28 04:54:42,533 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:42,534 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:42,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 04:54:42,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:42,735 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:42,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:42,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1502763282, now seen corresponding path program 2 times [2024-11-28 04:54:42,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:42,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675297328] [2024-11-28 04:54:42,736 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:54:42,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:42,782 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:54:42,786 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:54:42,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2131471605] [2024-11-28 04:54:42,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:54:42,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:42,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:42,794 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:42,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:54:42,894 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:54:42,894 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:42,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:54:42,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:43,197 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 04:54:43,197 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:43,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:43,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675297328] [2024-11-28 04:54:43,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:54:43,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131471605] [2024-11-28 04:54:43,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131471605] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:43,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:54:43,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:54:43,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135451809] [2024-11-28 04:54:43,890 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:43,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:54:43,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:43,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:54:43,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:54:43,892 INFO L87 Difference]: Start difference. First operand 670 states and 865 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 04:54:44,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:44,208 INFO L93 Difference]: Finished difference Result 712 states and 919 transitions. [2024-11-28 04:54:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:54:44,208 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 114 [2024-11-28 04:54:44,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:44,212 INFO L225 Difference]: With dead ends: 712 [2024-11-28 04:54:44,212 INFO L226 Difference]: Without dead ends: 711 [2024-11-28 04:54:44,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:54:44,213 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 49 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:44,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 197 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:54:44,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-28 04:54:44,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 698. [2024-11-28 04:54:44,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 600 states have (on average 1.245) internal successors, (747), 611 states have internal predecessors, (747), 77 states have call successors, (77), 9 states have call predecessors, (77), 9 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-28 04:54:44,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 901 transitions. [2024-11-28 04:54:44,355 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 901 transitions. Word has length 114 [2024-11-28 04:54:44,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:44,355 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 901 transitions. [2024-11-28 04:54:44,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 04:54:44,356 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 901 transitions. [2024-11-28 04:54:44,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:54:44,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:44,357 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:44,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:44,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:44,562 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:44,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:44,562 INFO L85 PathProgramCache]: Analyzing trace with hash -756030167, now seen corresponding path program 1 times [2024-11-28 04:54:44,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:44,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020897447] [2024-11-28 04:54:44,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:44,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:44,929 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:54:44,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:44,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020897447] [2024-11-28 04:54:44,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020897447] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:44,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464059129] [2024-11-28 04:54:44,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:44,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:44,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:44,932 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:44,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:54:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:45,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:54:45,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:45,295 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 387 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 04:54:45,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:45,761 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:54:45,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464059129] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:45,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:45,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 25 [2024-11-28 04:54:45,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574519160] [2024-11-28 04:54:45,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:45,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:54:45,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:45,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:54:45,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:54:45,764 INFO L87 Difference]: Start difference. First operand 698 states and 901 transitions. Second operand has 26 states, 25 states have (on average 6.08) internal successors, (152), 26 states have internal predecessors, (152), 10 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2024-11-28 04:54:46,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:46,876 INFO L93 Difference]: Finished difference Result 837 states and 1056 transitions. [2024-11-28 04:54:46,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-28 04:54:46,877 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.08) internal successors, (152), 26 states have internal predecessors, (152), 10 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) Word has length 137 [2024-11-28 04:54:46,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:46,881 INFO L225 Difference]: With dead ends: 837 [2024-11-28 04:54:46,882 INFO L226 Difference]: Without dead ends: 828 [2024-11-28 04:54:46,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=667, Invalid=2195, Unknown=0, NotChecked=0, Total=2862 [2024-11-28 04:54:46,884 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 286 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:46,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 558 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:54:46,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-11-28 04:54:47,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 798. [2024-11-28 04:54:47,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 689 states have (on average 1.2264150943396226) internal successors, (845), 700 states have internal predecessors, (845), 83 states have call successors, (83), 14 states have call predecessors, (83), 14 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-28 04:54:47,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1011 transitions. [2024-11-28 04:54:47,041 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1011 transitions. Word has length 137 [2024-11-28 04:54:47,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:47,041 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1011 transitions. [2024-11-28 04:54:47,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.08) internal successors, (152), 26 states have internal predecessors, (152), 10 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2024-11-28 04:54:47,042 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1011 transitions. [2024-11-28 04:54:47,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 04:54:47,043 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:47,043 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:54:47,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:47,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:47,249 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:47,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:47,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1576926753, now seen corresponding path program 1 times [2024-11-28 04:54:47,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:47,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951959491] [2024-11-28 04:54:47,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:47,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:47,707 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:54:47,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:47,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951959491] [2024-11-28 04:54:47,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951959491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:47,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473222708] [2024-11-28 04:54:47,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:47,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:47,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:47,711 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:47,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:54:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:47,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:54:47,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:54:48,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:51,171 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:54:51,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473222708] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:51,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:51,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-28 04:54:51,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382379989] [2024-11-28 04:54:51,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:51,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:54:51,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:51,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:54:51,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:54:51,175 INFO L87 Difference]: Start difference. First operand 798 states and 1011 transitions. Second operand has 22 states, 21 states have (on average 10.285714285714286) internal successors, (216), 22 states have internal predecessors, (216), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 04:54:53,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:53,181 INFO L93 Difference]: Finished difference Result 1112 states and 1418 transitions. [2024-11-28 04:54:53,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:54:53,182 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.285714285714286) internal successors, (216), 22 states have internal predecessors, (216), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 138 [2024-11-28 04:54:53,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:53,188 INFO L225 Difference]: With dead ends: 1112 [2024-11-28 04:54:53,188 INFO L226 Difference]: Without dead ends: 1111 [2024-11-28 04:54:53,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:54:53,189 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 489 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:53,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 727 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:54:53,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2024-11-28 04:54:53,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 988. [2024-11-28 04:54:53,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 863 states have (on average 1.2259559675550407) internal successors, (1058), 874 states have internal predecessors, (1058), 99 states have call successors, (99), 14 states have call predecessors, (99), 14 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-28 04:54:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1256 transitions. [2024-11-28 04:54:53,366 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1256 transitions. Word has length 138 [2024-11-28 04:54:53,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:53,367 INFO L471 AbstractCegarLoop]: Abstraction has 988 states and 1256 transitions. [2024-11-28 04:54:53,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.285714285714286) internal successors, (216), 22 states have internal predecessors, (216), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 04:54:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1256 transitions. [2024-11-28 04:54:53,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 04:54:53,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:53,369 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1] [2024-11-28 04:54:53,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 04:54:53,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:53,573 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:53,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:53,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1886300057, now seen corresponding path program 1 times [2024-11-28 04:54:53,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:53,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740408754] [2024-11-28 04:54:53,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:53,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:53,939 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:54:53,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:53,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740408754] [2024-11-28 04:54:53,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740408754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:53,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465144006] [2024-11-28 04:54:53,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:53,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:53,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:53,943 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:53,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:54:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:54,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:54:54,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:54,295 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 328 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:54:54,295 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:54,708 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:54:54,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465144006] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:54,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:54,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 26 [2024-11-28 04:54:54,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146821601] [2024-11-28 04:54:54,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:54,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:54:54,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:54,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:54:54,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=505, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:54:54,711 INFO L87 Difference]: Start difference. First operand 988 states and 1256 transitions. Second operand has 26 states, 26 states have (on average 6.346153846153846) internal successors, (165), 26 states have internal predecessors, (165), 10 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 10 states have call predecessors, (39), 10 states have call successors, (39) [2024-11-28 04:54:55,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:55,646 INFO L93 Difference]: Finished difference Result 1322 states and 1673 transitions. [2024-11-28 04:54:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-28 04:54:55,647 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.346153846153846) internal successors, (165), 26 states have internal predecessors, (165), 10 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 10 states have call predecessors, (39), 10 states have call successors, (39) Word has length 139 [2024-11-28 04:54:55,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:55,653 INFO L225 Difference]: With dead ends: 1322 [2024-11-28 04:54:55,653 INFO L226 Difference]: Without dead ends: 1314 [2024-11-28 04:54:55,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=608, Invalid=2044, Unknown=0, NotChecked=0, Total=2652 [2024-11-28 04:54:55,655 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 271 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:55,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 872 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:54:55,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2024-11-28 04:54:55,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1279. [2024-11-28 04:54:55,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1129 states have (on average 1.203720106288751) internal successors, (1359), 1140 states have internal predecessors, (1359), 119 states have call successors, (119), 19 states have call predecessors, (119), 19 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-28 04:54:55,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1597 transitions. [2024-11-28 04:54:55,828 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1597 transitions. Word has length 139 [2024-11-28 04:54:55,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:55,828 INFO L471 AbstractCegarLoop]: Abstraction has 1279 states and 1597 transitions. [2024-11-28 04:54:55,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.346153846153846) internal successors, (165), 26 states have internal predecessors, (165), 10 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 10 states have call predecessors, (39), 10 states have call successors, (39) [2024-11-28 04:54:55,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1597 transitions. [2024-11-28 04:54:55,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 04:54:55,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:55,830 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:55,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:56,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:56,030 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:56,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:56,031 INFO L85 PathProgramCache]: Analyzing trace with hash -86119313, now seen corresponding path program 3 times [2024-11-28 04:54:56,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:56,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908271775] [2024-11-28 04:54:56,031 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:54:56,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:56,077 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:54:56,077 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:54:56,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [501728533] [2024-11-28 04:54:56,078 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:54:56,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:56,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:56,083 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:56,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:54:56,168 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 04:54:56,168 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:56,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:54:56,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:29,230 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 73 proven. 6 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-11-28 04:55:29,231 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:55:30,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:55:30,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908271775] [2024-11-28 04:55:30,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:55:30,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501728533] [2024-11-28 04:55:30,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501728533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:55:30,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:55:30,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:55:30,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200289492] [2024-11-28 04:55:30,928 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:55:30,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:55:30,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:55:30,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:55:30,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:55:30,930 INFO L87 Difference]: Start difference. First operand 1279 states and 1597 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:55:35,228 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 [] [2024-11-28 04:55:39,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:55:43,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:55:47,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:55:51,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:56:03,435 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 [] [2024-11-28 04:56:05,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:05,389 INFO L93 Difference]: Finished difference Result 1445 states and 1811 transitions. [2024-11-28 04:56:05,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:56:05,390 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 140 [2024-11-28 04:56:05,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:05,396 INFO L225 Difference]: With dead ends: 1445 [2024-11-28 04:56:05,396 INFO L226 Difference]: Without dead ends: 1444 [2024-11-28 04:56:05,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=137, Invalid=368, Unknown=1, NotChecked=0, Total=506 [2024-11-28 04:56:05,398 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 72 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 16 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:05,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 233 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 346 Invalid, 6 Unknown, 0 Unchecked, 26.1s Time] [2024-11-28 04:56:05,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2024-11-28 04:56:05,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1378. [2024-11-28 04:56:05,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1218 states have (on average 1.206896551724138) internal successors, (1470), 1229 states have internal predecessors, (1470), 129 states have call successors, (129), 19 states have call predecessors, (129), 19 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-28 04:56:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1728 transitions. [2024-11-28 04:56:05,583 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1728 transitions. Word has length 140 [2024-11-28 04:56:05,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:05,583 INFO L471 AbstractCegarLoop]: Abstraction has 1378 states and 1728 transitions. [2024-11-28 04:56:05,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:56:05,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1728 transitions. [2024-11-28 04:56:05,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 04:56:05,585 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:05,585 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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 04:56:05,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:05,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-28 04:56:05,790 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:56:05,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:05,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1156278127, now seen corresponding path program 2 times [2024-11-28 04:56:05,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:05,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971200658] [2024-11-28 04:56:05,791 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:05,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:05,847 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:05,847 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:56:05,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812510888] [2024-11-28 04:56:05,849 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:05,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:05,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:05,853 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:05,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:56:05,965 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:05,965 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:05,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:56:05,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:56:07,240 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:08,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:08,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971200658] [2024-11-28 04:56:08,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:08,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812510888] [2024-11-28 04:56:08,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812510888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:08,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:08,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:56:08,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559837257] [2024-11-28 04:56:08,877 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:08,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:56:08,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:08,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:56:08,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:56:08,878 INFO L87 Difference]: Start difference. First operand 1378 states and 1728 transitions. Second operand has 13 states, 12 states have (on average 6.25) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 04:56:10,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:10,078 INFO L93 Difference]: Finished difference Result 1386 states and 1736 transitions. [2024-11-28 04:56:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:56:10,078 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.25) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 142 [2024-11-28 04:56:10,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:10,084 INFO L225 Difference]: With dead ends: 1386 [2024-11-28 04:56:10,084 INFO L226 Difference]: Without dead ends: 1385 [2024-11-28 04:56:10,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:56:10,086 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 48 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:10,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 496 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:56:10,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2024-11-28 04:56:10,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1378. [2024-11-28 04:56:10,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1218 states have (on average 1.2060755336617406) internal successors, (1469), 1229 states have internal predecessors, (1469), 129 states have call successors, (129), 19 states have call predecessors, (129), 19 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-28 04:56:10,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1727 transitions. [2024-11-28 04:56:10,266 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1727 transitions. Word has length 142 [2024-11-28 04:56:10,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:10,267 INFO L471 AbstractCegarLoop]: Abstraction has 1378 states and 1727 transitions. [2024-11-28 04:56:10,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.25) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 04:56:10,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1727 transitions. [2024-11-28 04:56:10,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 04:56:10,268 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:10,268 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:10,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-28 04:56:10,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:10,473 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:56:10,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:10,473 INFO L85 PathProgramCache]: Analyzing trace with hash -132091064, now seen corresponding path program 4 times [2024-11-28 04:56:10,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:10,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968085800] [2024-11-28 04:56:10,473 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:56:10,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:10,515 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:56:10,515 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:56:10,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736581629] [2024-11-28 04:56:10,517 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:56:10,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:10,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:10,519 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:10,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:56:10,631 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:56:10,631 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:10,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:56:10,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:11,735 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:56:11,735 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:12,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:12,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968085800] [2024-11-28 04:56:12,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:12,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736581629] [2024-11-28 04:56:12,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736581629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:12,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:12,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:56:12,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541853696] [2024-11-28 04:56:12,179 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:12,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:56:12,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:12,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:56:12,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:56:12,181 INFO L87 Difference]: Start difference. First operand 1378 states and 1727 transitions. Second operand has 13 states, 12 states have (on average 6.833333333333333) internal successors, (82), 13 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:56:13,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:13,337 INFO L93 Difference]: Finished difference Result 1416 states and 1773 transitions. [2024-11-28 04:56:13,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:56:13,338 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.833333333333333) internal successors, (82), 13 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 144 [2024-11-28 04:56:13,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:13,344 INFO L225 Difference]: With dead ends: 1416 [2024-11-28 04:56:13,345 INFO L226 Difference]: Without dead ends: 1415 [2024-11-28 04:56:13,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:56:13,346 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 71 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:13,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 616 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:56:13,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2024-11-28 04:56:13,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1382. [2024-11-28 04:56:13,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1222 states have (on average 1.1988543371522096) internal successors, (1465), 1233 states have internal predecessors, (1465), 129 states have call successors, (129), 19 states have call predecessors, (129), 19 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-28 04:56:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1723 transitions. [2024-11-28 04:56:13,599 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1723 transitions. Word has length 144 [2024-11-28 04:56:13,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:13,600 INFO L471 AbstractCegarLoop]: Abstraction has 1382 states and 1723 transitions. [2024-11-28 04:56:13,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.833333333333333) internal successors, (82), 13 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:56:13,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1723 transitions. [2024-11-28 04:56:13,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 04:56:13,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:13,602 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:13,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:13,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:13,806 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:56:13,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:13,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1909509418, now seen corresponding path program 3 times [2024-11-28 04:56:13,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:13,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908592067] [2024-11-28 04:56:13,807 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:13,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:13,879 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:56:13,879 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:56:13,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1246668898] [2024-11-28 04:56:13,881 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:13,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:13,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:13,886 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:13,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:56:13,983 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:56:13,983 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:13,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 04:56:13,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:16,029 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:56:16,029 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:59,996 WARN L286 SmtUtils]: Spent 7.93s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:57:28,574 WARN L286 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 04:57:50,826 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:57:50,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:50,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908592067] [2024-11-28 04:57:50,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:57:50,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246668898] [2024-11-28 04:57:50,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246668898] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:57:50,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:57:50,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2024-11-28 04:57:50,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294223617] [2024-11-28 04:57:50,827 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:50,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:57:50,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:50,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:57:50,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:57:50,829 INFO L87 Difference]: Start difference. First operand 1382 states and 1723 transitions. Second operand has 28 states, 27 states have (on average 6.074074074074074) internal successors, (164), 28 states have internal predecessors, (164), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2024-11-28 04:57:59,174 WARN L286 SmtUtils]: Spent 7.76s on a formula simplification. DAG size of input: 200 DAG size of output: 72 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:58:07,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:58:31,929 WARN L286 SmtUtils]: Spent 9.83s on a formula simplification. DAG size of input: 203 DAG size of output: 76 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:58:33,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:58:46,043 WARN L286 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 75 DAG size of output: 71 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:58:53,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:58:58,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:59:25,779 WARN L286 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 200 DAG size of output: 77 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:59:27,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:27,319 INFO L93 Difference]: Finished difference Result 1693 states and 2116 transitions. [2024-11-28 04:59:27,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 04:59:27,320 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.074074074074074) internal successors, (164), 28 states have internal predecessors, (164), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 146 [2024-11-28 04:59:27,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:27,325 INFO L225 Difference]: With dead ends: 1693 [2024-11-28 04:59:27,325 INFO L226 Difference]: Without dead ends: 1276 [2024-11-28 04:59:27,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 264 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 68.7s TimeCoverageRelationStatistics Valid=669, Invalid=1781, Unknown=0, NotChecked=0, Total=2450 [2024-11-28 04:59:27,326 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 639 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 129 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:27,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1027 Invalid, 2365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 2235 Invalid, 1 Unknown, 0 Unchecked, 30.8s Time] [2024-11-28 04:59:27,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2024-11-28 04:59:27,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1207. [2024-11-28 04:59:27,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1061 states have (on average 1.1950989632422244) internal successors, (1268), 1072 states have internal predecessors, (1268), 115 states have call successors, (115), 19 states have call predecessors, (115), 19 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-28 04:59:27,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1498 transitions. [2024-11-28 04:59:27,505 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1498 transitions. Word has length 146 [2024-11-28 04:59:27,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:27,506 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1498 transitions. [2024-11-28 04:59:27,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.074074074074074) internal successors, (164), 28 states have internal predecessors, (164), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2024-11-28 04:59:27,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1498 transitions. [2024-11-28 04:59:27,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 04:59:27,508 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:27,508 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:59:27,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:27,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-28 04:59:27,713 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:59:27,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:27,713 INFO L85 PathProgramCache]: Analyzing trace with hash -65778641, now seen corresponding path program 1 times [2024-11-28 04:59:27,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:27,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126981625] [2024-11-28 04:59:27,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:27,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:59:27,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193885201] [2024-11-28 04:59:27,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:27,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:27,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:27,765 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:27,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:59:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:27,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:59:27,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 42 proven. 78 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-28 04:59:28,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:29,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:29,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126981625] [2024-11-28 04:59:29,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:59:29,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193885201] [2024-11-28 04:59:29,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193885201] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:29,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:59:29,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 04:59:29,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147617314] [2024-11-28 04:59:29,058 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:59:29,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:59:29,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:29,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:59:29,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:59:29,059 INFO L87 Difference]: Start difference. First operand 1207 states and 1498 transitions. Second operand has 17 states, 16 states have (on average 5.4375) internal successors, (87), 16 states have internal predecessors, (87), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 7 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:59:30,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:30,128 INFO L93 Difference]: Finished difference Result 1323 states and 1646 transitions. [2024-11-28 04:59:30,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:59:30,129 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.4375) internal successors, (87), 16 states have internal predecessors, (87), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 7 states have call predecessors, (15), 6 states have call successors, (15) Word has length 156 [2024-11-28 04:59:30,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:30,133 INFO L225 Difference]: With dead ends: 1323 [2024-11-28 04:59:30,133 INFO L226 Difference]: Without dead ends: 1012 [2024-11-28 04:59:30,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=648, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:59:30,135 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 72 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:30,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 626 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:59:30,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-11-28 04:59:30,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1009. [2024-11-28 04:59:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 878 states have (on average 1.1958997722095672) internal successors, (1050), 889 states have internal predecessors, (1050), 101 states have call successors, (101), 18 states have call predecessors, (101), 18 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-28 04:59:30,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1252 transitions. [2024-11-28 04:59:30,309 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1252 transitions. Word has length 156 [2024-11-28 04:59:30,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:30,309 INFO L471 AbstractCegarLoop]: Abstraction has 1009 states and 1252 transitions. [2024-11-28 04:59:30,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.4375) internal successors, (87), 16 states have internal predecessors, (87), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 7 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:59:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1252 transitions. [2024-11-28 04:59:30,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:59:30,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:30,310 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:59:30,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:30,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-28 04:59:30,511 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:59:30,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:30,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2039137734, now seen corresponding path program 1 times [2024-11-28 04:59:30,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:30,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107690941] [2024-11-28 04:59:30,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:30,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:59:30,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252875898] [2024-11-28 04:59:30,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:30,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:30,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:30,549 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:30,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:59:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:30,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:59:30,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:32,693 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 42 proven. 78 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-28 04:59:32,693 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:35,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:35,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107690941] [2024-11-28 04:59:35,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:59:35,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252875898] [2024-11-28 04:59:35,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252875898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:35,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:59:35,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-28 04:59:35,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775186839] [2024-11-28 04:59:35,714 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:59:35,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:59:35,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:35,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:59:35,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:59:35,716 INFO L87 Difference]: Start difference. First operand 1009 states and 1252 transitions. Second operand has 19 states, 18 states have (on average 4.888888888888889) internal successors, (88), 18 states have internal predecessors, (88), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 7 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:59:37,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:37,469 INFO L93 Difference]: Finished difference Result 1021 states and 1264 transitions. [2024-11-28 04:59:37,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:59:37,469 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.888888888888889) internal successors, (88), 18 states have internal predecessors, (88), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 7 states have call predecessors, (15), 6 states have call successors, (15) Word has length 157 [2024-11-28 04:59:37,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:37,474 INFO L225 Difference]: With dead ends: 1021 [2024-11-28 04:59:37,474 INFO L226 Difference]: Without dead ends: 1020 [2024-11-28 04:59:37,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=268, Invalid=854, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:59:37,476 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 39 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:37,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 702 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:59:37,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-28 04:59:37,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1010. [2024-11-28 04:59:37,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 879 states have (on average 1.1956769055745164) internal successors, (1051), 890 states have internal predecessors, (1051), 101 states have call successors, (101), 18 states have call predecessors, (101), 18 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-28 04:59:37,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1253 transitions. [2024-11-28 04:59:37,612 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1253 transitions. Word has length 157 [2024-11-28 04:59:37,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:37,612 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1253 transitions. [2024-11-28 04:59:37,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.888888888888889) internal successors, (88), 18 states have internal predecessors, (88), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 7 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:59:37,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1253 transitions. [2024-11-28 04:59:37,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:59:37,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:37,614 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2024-11-28 04:59:37,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:37,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-28 04:59:37,814 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:59:37,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:37,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1106270948, now seen corresponding path program 1 times [2024-11-28 04:59:37,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:37,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132457732] [2024-11-28 04:59:37,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:37,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:59:37,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [106342878] [2024-11-28 04:59:37,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:37,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:37,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:37,858 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:37,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49aea80a-cd3d-40d5-aff9-50554d300336/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:59:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:37,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 04:59:37,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:59:40,242 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:00,078 WARN L286 SmtUtils]: Spent 9.09s 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 05:00:10,615 WARN L286 SmtUtils]: Spent 7.46s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:00:28,296 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:01:26,867 WARN L286 SmtUtils]: Spent 6.89s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:01:52,168 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 05:01:52,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:01:52,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132457732] [2024-11-28 05:01:52,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:01:52,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106342878] [2024-11-28 05:01:52,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106342878] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:01:52,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:01:52,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-28 05:01:52,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101938841] [2024-11-28 05:01:52,169 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:01:52,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 05:01:52,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:01:52,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 05:01:52,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=459, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:01:52,172 INFO L87 Difference]: Start difference. First operand 1010 states and 1253 transitions. Second operand has 26 states, 25 states have (on average 6.72) internal successors, (168), 26 states have internal predecessors, (168), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2024-11-28 05:03:32,494 WARN L286 SmtUtils]: Spent 1.65m on a formula simplification. DAG size of input: 181 DAG size of output: 176 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 05:03:34,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:03:43,744 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification. DAG size of input: 94 DAG size of output: 83 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 05:03:45,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:03:46,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:04:54,399 WARN L286 SmtUtils]: Spent 1.05m on a formula simplification. DAG size of input: 170 DAG size of output: 166 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 05:05:19,345 WARN L286 SmtUtils]: Spent 23.97s on a formula simplification. DAG size of input: 100 DAG size of output: 89 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 05:05:23,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:05:27,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:05:32,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:05:37,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:05:41,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:06:25,176 WARN L286 SmtUtils]: Spent 31.09s on a formula simplification. DAG size of input: 102 DAG size of output: 97 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 05:06:29,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:06:32,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:06:36,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:06:40,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:07:19,110 WARN L286 SmtUtils]: Spent 26.62s on a formula simplification that was a NOOP. DAG size: 168 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 05:07:23,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:07:32,388 WARN L286 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 05:08:00,454 WARN L286 SmtUtils]: Spent 21.45s on a formula simplification that was a NOOP. DAG size: 87 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 05:08:03,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:08:04,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:08:08,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []