./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound20.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_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/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_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/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_358d0364-b7f3-48e8-97e4-2554721d13e0/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 a95a21aef2f50b6142b75e9167422e223cf73e944019da3877f24b8f537b25b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:17:11,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:17:12,032 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:17:12,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:17:12,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:17:12,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:17:12,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:17:12,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:17:12,081 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:17:12,082 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:17:12,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:17:12,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:17:12,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:17:12,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:17:12,084 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:17:12,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:17:12,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:17:12,084 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:17:12,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:17:12,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:17:12,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:17:12,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:17:12,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:17:12,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:17:12,085 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:17:12,086 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:17:12,086 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:17:12,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:17:12,086 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:17:12,086 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:17:12,086 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:17:12,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:17:12,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:17:12,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:17:12,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:17:12,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:17:12,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:17:12,088 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:17:12,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:17:12,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:17:12,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:17:12,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:17:12,089 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:17:12,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:17:12,089 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:17:12,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:17:12,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:17:12,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:17:12,089 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:17:12,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:17:12,089 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_358d0364-b7f3-48e8-97e4-2554721d13e0/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 -> a95a21aef2f50b6142b75e9167422e223cf73e944019da3877f24b8f537b25b5 [2024-11-27 20:17:12,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:17:12,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:17:12,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:17:12,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:17:12,424 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:17:12,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound20.c [2024-11-27 20:17:15,648 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/data/283d6b31c/ba1428325ab34fd281708b7e85a00bc1/FLAG965ebdb9b [2024-11-27 20:17:15,946 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:17:15,947 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound20.c [2024-11-27 20:17:15,957 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/data/283d6b31c/ba1428325ab34fd281708b7e85a00bc1/FLAG965ebdb9b [2024-11-27 20:17:15,974 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/data/283d6b31c/ba1428325ab34fd281708b7e85a00bc1 [2024-11-27 20:17:15,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:17:15,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:17:15,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:17:15,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:17:15,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:17:15,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:17:15" (1/1) ... [2024-11-27 20:17:15,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@419090a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:15, skipping insertion in model container [2024-11-27 20:17:15,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:17:15" (1/1) ... [2024-11-27 20:17:16,003 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:17:16,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:17:16,202 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:17:16,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:17:16,238 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:17:16,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16 WrapperNode [2024-11-27 20:17:16,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:17:16,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:17:16,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:17:16,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:17:16,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,279 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2024-11-27 20:17:16,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:17:16,281 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:17:16,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:17:16,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:17:16,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,295 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,320 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]. [2024-11-27 20:17:16,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,327 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,336 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,338 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:17:16,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:17:16,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:17:16,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:17:16,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (1/1) ... [2024-11-27 20:17:16,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:17:16,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:16,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:17:16,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:17:16,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:17:16,420 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:17:16,420 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:17:16,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:17:16,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:17:16,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:17:16,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:17:16,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:17:16,482 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:17:16,484 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:17:16,777 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-27 20:17:16,777 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:17:16,792 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:17:16,792 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:17:16,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:17:16 BoogieIcfgContainer [2024-11-27 20:17:16,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:17:16,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:17:16,797 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:17:16,803 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:17:16,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:17:15" (1/3) ... [2024-11-27 20:17:16,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632f2386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:17:16, skipping insertion in model container [2024-11-27 20:17:16,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:16" (2/3) ... [2024-11-27 20:17:16,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632f2386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:17:16, skipping insertion in model container [2024-11-27 20:17:16,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:17:16" (3/3) ... [2024-11-27 20:17:16,807 INFO L128 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound20.c [2024-11-27 20:17:16,824 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:17:16,825 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prodbin-ll_valuebound20.c that has 3 procedures, 57 locations, 1 initial locations, 1 loop locations, and 16 error locations. [2024-11-27 20:17:16,896 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:17:16,910 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;@381c1a88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:17:16,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-27 20:17:16,914 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 49 states have internal predecessors, (55), 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) [2024-11-27 20:17:16,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-27 20:17:16,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:16,923 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:17:16,924 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:16,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:16,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1550676181, now seen corresponding path program 1 times [2024-11-27 20:17:16,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:16,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398175840] [2024-11-27 20:17:16,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:16,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:17,082 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:17:17,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:17,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398175840] [2024-11-27 20:17:17,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398175840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:17:17,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490795559] [2024-11-27 20:17:17,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:17,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:17,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:17,088 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:17,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:17:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:17,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:17:17,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:17:17,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:17:17,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490795559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:17,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:17:17,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:17:17,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236747941] [2024-11-27 20:17:17,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:17,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:17:17,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:17,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:17:17,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:17:17,219 INFO L87 Difference]: Start difference. First operand has 57 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 49 states have internal predecessors, (55), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:17:17,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:17,239 INFO L93 Difference]: Finished difference Result 110 states and 130 transitions. [2024-11-27 20:17:17,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:17:17,241 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2024-11-27 20:17:17,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:17,253 INFO L225 Difference]: With dead ends: 110 [2024-11-27 20:17:17,253 INFO L226 Difference]: Without dead ends: 50 [2024-11-27 20:17:17,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:17:17,262 INFO L435 NwaCegarLoop]: 60 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, 60 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 [2024-11-27 20:17:17,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:17:17,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-27 20:17:17,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-27 20:17:17,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 43 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 20:17:17,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2024-11-27 20:17:17,305 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 20 [2024-11-27 20:17:17,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:17,305 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2024-11-27 20:17:17,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:17:17,305 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2024-11-27 20:17:17,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-27 20:17:17,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:17,308 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:17:17,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:17:17,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:17:17,509 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:17,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:17,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1332042793, now seen corresponding path program 1 times [2024-11-27 20:17:17,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:17,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429251784] [2024-11-27 20:17:17,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:17,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:17:17,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168766964] [2024-11-27 20:17:17,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:17,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:17,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:17,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:17,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:17:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:17,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:17:17,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 20:17:17,808 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:17:22,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:22,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429251784] [2024-11-27 20:17:22,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:17:22,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168766964] [2024-11-27 20:17:22,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168766964] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:17:22,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:17:22,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-27 20:17:22,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762083838] [2024-11-27 20:17:22,078 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:17:22,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:17:22,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:22,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:17:22,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2024-11-27 20:17:22,080 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:17:22,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:22,366 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2024-11-27 20:17:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:17:22,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2024-11-27 20:17:22,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:22,369 INFO L225 Difference]: With dead ends: 75 [2024-11-27 20:17:22,369 INFO L226 Difference]: Without dead ends: 66 [2024-11-27 20:17:22,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=31, Invalid=78, Unknown=1, NotChecked=0, Total=110 [2024-11-27 20:17:22,370 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 72 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:22,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 77 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:17:22,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-27 20:17:22,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2024-11-27 20:17:22,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 42 states have (on average 1.5476190476190477) internal successors, (65), 55 states have internal predecessors, (65), 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) [2024-11-27 20:17:22,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2024-11-27 20:17:22,385 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 20 [2024-11-27 20:17:22,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:22,386 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2024-11-27 20:17:22,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:17:22,387 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2024-11-27 20:17:22,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 20:17:22,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:22,387 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:17:22,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:17:22,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:22,594 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:22,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:22,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1656346328, now seen corresponding path program 1 times [2024-11-27 20:17:22,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:22,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717087305] [2024-11-27 20:17:22,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:22,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:17:22,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [458021489] [2024-11-27 20:17:22,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:22,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:22,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:22,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:22,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:17:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:22,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:17:22,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:22,850 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:17:22,851 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:17:22,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:22,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717087305] [2024-11-27 20:17:22,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:17:22,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458021489] [2024-11-27 20:17:22,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458021489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:22,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:22,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:17:22,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305802696] [2024-11-27 20:17:22,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:22,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:17:22,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:22,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:17:22,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:17:22,854 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:17:23,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:23,075 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2024-11-27 20:17:23,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:17:23,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2024-11-27 20:17:23,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:23,077 INFO L225 Difference]: With dead ends: 67 [2024-11-27 20:17:23,079 INFO L226 Difference]: Without dead ends: 60 [2024-11-27 20:17:23,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:17:23,080 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 165 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:23,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 85 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:17:23,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-27 20:17:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-27 20:17:23,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 52 states have internal predecessors, (59), 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) [2024-11-27 20:17:23,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2024-11-27 20:17:23,098 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 21 [2024-11-27 20:17:23,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:23,099 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2024-11-27 20:17:23,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:17:23,099 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2024-11-27 20:17:23,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-27 20:17:23,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:23,100 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:17:23,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:17:23,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:23,301 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:23,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:23,301 INFO L85 PathProgramCache]: Analyzing trace with hash 192871435, now seen corresponding path program 1 times [2024-11-27 20:17:23,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:23,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519472016] [2024-11-27 20:17:23,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:23,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:23,495 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:17:23,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:23,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519472016] [2024-11-27 20:17:23,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519472016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:23,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:23,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:23,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931212196] [2024-11-27 20:17:23,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:23,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:17:23,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:23,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:17:23,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:17:23,500 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-27 20:17:23,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:23,589 INFO L93 Difference]: Finished difference Result 82 states and 96 transitions. [2024-11-27 20:17:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:17:23,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 22 [2024-11-27 20:17:23,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:23,591 INFO L225 Difference]: With dead ends: 82 [2024-11-27 20:17:23,591 INFO L226 Difference]: Without dead ends: 81 [2024-11-27 20:17:23,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:17:23,592 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 27 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:23,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 71 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:17:23,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-27 20:17:23,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73. [2024-11-27 20:17:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.471698113207547) internal successors, (78), 64 states have internal predecessors, (78), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:17:23,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2024-11-27 20:17:23,612 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 22 [2024-11-27 20:17:23,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:23,612 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2024-11-27 20:17:23,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-27 20:17:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2024-11-27 20:17:23,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-27 20:17:23,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:23,615 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:17:23,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:17:23,615 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:23,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:23,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1684047242, now seen corresponding path program 1 times [2024-11-27 20:17:23,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:23,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528554969] [2024-11-27 20:17:23,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:23,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:23,775 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:17:23,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:23,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528554969] [2024-11-27 20:17:23,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528554969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:23,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:23,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:23,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143943582] [2024-11-27 20:17:23,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:23,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:17:23,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:23,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:17:23,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:17:23,778 INFO L87 Difference]: Start difference. First operand 73 states and 90 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-27 20:17:23,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:23,853 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2024-11-27 20:17:23,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:17:23,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 23 [2024-11-27 20:17:23,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:23,855 INFO L225 Difference]: With dead ends: 82 [2024-11-27 20:17:23,855 INFO L226 Difference]: Without dead ends: 81 [2024-11-27 20:17:23,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:17:23,856 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 25 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:23,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 74 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:17:23,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-27 20:17:23,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73. [2024-11-27 20:17:23,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.4339622641509433) internal successors, (76), 64 states have internal predecessors, (76), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:17:23,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2024-11-27 20:17:23,866 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 23 [2024-11-27 20:17:23,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:23,866 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2024-11-27 20:17:23,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-27 20:17:23,867 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2024-11-27 20:17:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-27 20:17:23,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:23,868 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] [2024-11-27 20:17:23,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:17:23,868 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:23,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:23,869 INFO L85 PathProgramCache]: Analyzing trace with hash 47759200, now seen corresponding path program 1 times [2024-11-27 20:17:23,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:23,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518671036] [2024-11-27 20:17:23,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:23,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:17:24,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:24,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518671036] [2024-11-27 20:17:24,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518671036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:24,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:24,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:24,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612924777] [2024-11-27 20:17:24,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:24,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:17:24,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:24,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:17:24,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:17:24,012 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:17:24,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:24,112 INFO L93 Difference]: Finished difference Result 74 states and 88 transitions. [2024-11-27 20:17:24,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:17:24,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-11-27 20:17:24,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:24,115 INFO L225 Difference]: With dead ends: 74 [2024-11-27 20:17:24,115 INFO L226 Difference]: Without dead ends: 73 [2024-11-27 20:17:24,115 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 [2024-11-27 20:17:24,118 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 47 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:24,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 73 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:17:24,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-27 20:17:24,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-27 20:17:24,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 64 states have internal predecessors, (75), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:17:24,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 87 transitions. [2024-11-27 20:17:24,134 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 87 transitions. Word has length 33 [2024-11-27 20:17:24,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:24,137 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 87 transitions. [2024-11-27 20:17:24,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:17:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 87 transitions. [2024-11-27 20:17:24,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-27 20:17:24,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:24,138 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] [2024-11-27 20:17:24,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:17:24,139 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:24,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:24,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1480535270, now seen corresponding path program 1 times [2024-11-27 20:17:24,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:24,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917028357] [2024-11-27 20:17:24,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:24,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:24,228 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:17:24,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:24,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917028357] [2024-11-27 20:17:24,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917028357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:24,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:24,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:24,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592767681] [2024-11-27 20:17:24,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:24,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:17:24,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:24,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:17:24,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:17:24,231 INFO L87 Difference]: Start difference. First operand 73 states and 87 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:17:24,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:24,317 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2024-11-27 20:17:24,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:17:24,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-11-27 20:17:24,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:24,320 INFO L225 Difference]: With dead ends: 74 [2024-11-27 20:17:24,320 INFO L226 Difference]: Without dead ends: 73 [2024-11-27 20:17:24,320 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 [2024-11-27 20:17:24,322 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 45 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:24,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 74 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:17:24,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-27 20:17:24,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-27 20:17:24,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 64 states have internal predecessors, (74), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:17:24,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 86 transitions. [2024-11-27 20:17:24,337 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 86 transitions. Word has length 34 [2024-11-27 20:17:24,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:24,337 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 86 transitions. [2024-11-27 20:17:24,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:17:24,337 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 86 transitions. [2024-11-27 20:17:24,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-27 20:17:24,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:24,338 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, 1, 1] [2024-11-27 20:17:24,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:17:24,339 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:24,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:24,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1169795634, now seen corresponding path program 1 times [2024-11-27 20:17:24,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:24,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941651568] [2024-11-27 20:17:24,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:24,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:24,497 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:17:24,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:24,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941651568] [2024-11-27 20:17:24,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941651568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:24,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:24,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:17:24,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519813964] [2024-11-27 20:17:24,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:24,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:17:24,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:24,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:17:24,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:17:24,498 INFO L87 Difference]: Start difference. First operand 73 states and 86 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 20:17:24,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:24,571 INFO L93 Difference]: Finished difference Result 73 states and 86 transitions. [2024-11-27 20:17:24,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:17:24,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 36 [2024-11-27 20:17:24,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:24,578 INFO L225 Difference]: With dead ends: 73 [2024-11-27 20:17:24,578 INFO L226 Difference]: Without dead ends: 71 [2024-11-27 20:17:24,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:17:24,579 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 37 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:24,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 67 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:17:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-27 20:17:24,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2024-11-27 20:17:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 61 states have internal predecessors, (70), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:17:24,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2024-11-27 20:17:24,595 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 36 [2024-11-27 20:17:24,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:24,595 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2024-11-27 20:17:24,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 20:17:24,596 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2024-11-27 20:17:24,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-27 20:17:24,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:24,596 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, 1, 1, 1] [2024-11-27 20:17:24,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:17:24,597 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:24,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:24,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1607137511, now seen corresponding path program 1 times [2024-11-27 20:17:24,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:24,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673684027] [2024-11-27 20:17:24,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:24,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:24,705 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:17:24,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:24,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673684027] [2024-11-27 20:17:24,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673684027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:24,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:24,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:24,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669778342] [2024-11-27 20:17:24,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:24,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:17:24,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:24,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:17:24,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:17:24,708 INFO L87 Difference]: Start difference. First operand 70 states and 82 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:17:24,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:24,783 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2024-11-27 20:17:24,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:17:24,784 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2024-11-27 20:17:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:24,786 INFO L225 Difference]: With dead ends: 74 [2024-11-27 20:17:24,786 INFO L226 Difference]: Without dead ends: 73 [2024-11-27 20:17:24,786 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 [2024-11-27 20:17:24,787 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 46 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:24,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 69 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:17:24,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-27 20:17:24,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2024-11-27 20:17:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 63 states have internal predecessors, (72), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:17:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2024-11-27 20:17:24,801 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 37 [2024-11-27 20:17:24,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:24,801 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2024-11-27 20:17:24,801 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:17:24,801 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2024-11-27 20:17:24,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-27 20:17:24,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:24,802 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, 1, 1, 1] [2024-11-27 20:17:24,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:17:24,803 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:24,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:24,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1903926333, now seen corresponding path program 1 times [2024-11-27 20:17:24,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:24,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352281120] [2024-11-27 20:17:24,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:24,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:17:24,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [696739259] [2024-11-27 20:17:24,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:24,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:24,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:24,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:24,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:17:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:24,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:17:24,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:25,394 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 20:17:25,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:17:31,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:31,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352281120] [2024-11-27 20:17:31,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:17:31,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696739259] [2024-11-27 20:17:31,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696739259] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:17:31,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:17:31,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 20:17:31,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200007550] [2024-11-27 20:17:31,030 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:17:31,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:17:31,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:31,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:17:31,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=173, Unknown=1, NotChecked=0, Total=240 [2024-11-27 20:17:31,031 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 11 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 20:17:31,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:31,604 INFO L93 Difference]: Finished difference Result 91 states and 117 transitions. [2024-11-27 20:17:31,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:17:31,605 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2024-11-27 20:17:31,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:31,606 INFO L225 Difference]: With dead ends: 91 [2024-11-27 20:17:31,607 INFO L226 Difference]: Without dead ends: 87 [2024-11-27 20:17:31,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=134, Invalid=285, Unknown=1, NotChecked=0, Total=420 [2024-11-27 20:17:31,608 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 61 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:31,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 82 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:17:31,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-27 20:17:31,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 64. [2024-11-27 20:17:31,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 50 states have (on average 1.22) internal successors, (61), 55 states have internal predecessors, (61), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:17:31,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2024-11-27 20:17:31,620 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 37 [2024-11-27 20:17:31,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:31,621 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2024-11-27 20:17:31,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 20:17:31,621 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2024-11-27 20:17:31,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 20:17:31,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:31,622 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, 1, 1, 1, 1] [2024-11-27 20:17:31,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:17:31,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 20:17:31,823 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:31,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:31,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1718344630, now seen corresponding path program 1 times [2024-11-27 20:17:31,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:31,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064875780] [2024-11-27 20:17:31,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:31,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:31,917 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:17:31,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:31,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064875780] [2024-11-27 20:17:31,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064875780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:31,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:31,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:31,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133035332] [2024-11-27 20:17:31,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:31,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:17:31,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:31,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:17:31,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:17:31,921 INFO L87 Difference]: Start difference. First operand 64 states and 73 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:17:31,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:31,995 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2024-11-27 20:17:31,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:17:31,996 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-11-27 20:17:31,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:31,997 INFO L225 Difference]: With dead ends: 69 [2024-11-27 20:17:31,997 INFO L226 Difference]: Without dead ends: 68 [2024-11-27 20:17:31,998 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 [2024-11-27 20:17:31,998 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 40 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:31,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 64 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:17:32,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-27 20:17:32,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-27 20:17:32,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 59 states have internal predecessors, (65), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:17:32,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2024-11-27 20:17:32,013 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 38 [2024-11-27 20:17:32,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:32,014 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2024-11-27 20:17:32,014 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:17:32,014 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2024-11-27 20:17:32,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 20:17:32,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:32,015 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:17:32,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:17:32,016 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:32,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:32,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1107825772, now seen corresponding path program 1 times [2024-11-27 20:17:32,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:32,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636880022] [2024-11-27 20:17:32,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:32,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:17:32,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [408991094] [2024-11-27 20:17:32,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:32,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:32,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:32,050 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:32,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:17:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:32,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:17:32,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:32,900 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 20:17:32,900 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:17:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:17:33,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:33,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636880022] [2024-11-27 20:17:33,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:17:33,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408991094] [2024-11-27 20:17:33,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408991094] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:17:33,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:17:33,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-27 20:17:33,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133579180] [2024-11-27 20:17:33,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:33,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:17:33,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:33,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:17:33,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:17:33,680 INFO L87 Difference]: Start difference. First operand 68 states and 77 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:17:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:33,850 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2024-11-27 20:17:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:17:33,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-11-27 20:17:33,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:33,852 INFO L225 Difference]: With dead ends: 75 [2024-11-27 20:17:33,853 INFO L226 Difference]: Without dead ends: 74 [2024-11-27 20:17:33,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:17:33,854 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 16 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:33,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 53 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:17:33,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-27 20:17:33,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-27 20:17:33,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 65 states have internal predecessors, (71), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:17:33,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2024-11-27 20:17:33,867 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 38 [2024-11-27 20:17:33,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:33,867 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2024-11-27 20:17:33,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:17:33,868 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2024-11-27 20:17:33,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 20:17:33,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:33,869 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:17:33,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:17:34,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:34,070 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:34,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:34,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1357123826, now seen corresponding path program 1 times [2024-11-27 20:17:34,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:34,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651213661] [2024-11-27 20:17:34,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:34,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:17:34,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975473720] [2024-11-27 20:17:34,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:34,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:34,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:34,100 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:34,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:17:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:34,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 20:17:34,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:34,997 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 20:17:34,997 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:17:37,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:37,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651213661] [2024-11-27 20:17:37,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:17:37,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975473720] [2024-11-27 20:17:37,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975473720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:17:37,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:17:37,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 20:17:37,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279912936] [2024-11-27 20:17:37,602 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:17:37,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:17:37,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:37,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:17:37,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=236, Unknown=1, NotChecked=0, Total=306 [2024-11-27 20:17:37,603 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 20:17:39,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:39,129 INFO L93 Difference]: Finished difference Result 90 states and 106 transitions. [2024-11-27 20:17:39,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:17:39,130 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 42 [2024-11-27 20:17:39,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:39,131 INFO L225 Difference]: With dead ends: 90 [2024-11-27 20:17:39,131 INFO L226 Difference]: Without dead ends: 86 [2024-11-27 20:17:39,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=229, Invalid=582, Unknown=1, NotChecked=0, Total=812 [2024-11-27 20:17:39,136 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 60 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:39,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 142 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:17:39,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-27 20:17:39,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 80. [2024-11-27 20:17:39,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 68 states have (on average 1.1470588235294117) internal successors, (78), 70 states have internal predecessors, (78), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 20:17:39,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 92 transitions. [2024-11-27 20:17:39,152 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 92 transitions. Word has length 42 [2024-11-27 20:17:39,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:39,152 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 92 transitions. [2024-11-27 20:17:39,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 20:17:39,153 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 92 transitions. [2024-11-27 20:17:39,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-27 20:17:39,153 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:39,153 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:17:39,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:17:39,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:39,354 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:39,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:39,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1474062832, now seen corresponding path program 1 times [2024-11-27 20:17:39,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:39,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717774584] [2024-11-27 20:17:39,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:39,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:17:39,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295201825] [2024-11-27 20:17:39,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:39,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:39,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:39,387 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:39,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:17:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:39,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 20:17:39,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:40,100 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 20:17:40,101 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:17:42,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:42,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717774584] [2024-11-27 20:17:42,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:17:42,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295201825] [2024-11-27 20:17:42,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295201825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:17:42,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:17:42,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 20:17:42,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525300402] [2024-11-27 20:17:42,693 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:17:42,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:17:42,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:42,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:17:42,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:17:42,694 INFO L87 Difference]: Start difference. First operand 80 states and 92 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 20:17:43,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:43,397 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2024-11-27 20:17:43,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:17:43,398 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2024-11-27 20:17:43,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:43,399 INFO L225 Difference]: With dead ends: 97 [2024-11-27 20:17:43,399 INFO L226 Difference]: Without dead ends: 95 [2024-11-27 20:17:43,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=221, Invalid=649, Unknown=0, NotChecked=0, Total=870 [2024-11-27 20:17:43,401 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 89 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:43,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 135 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:17:43,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-27 20:17:43,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-11-27 20:17:43,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 80 states have (on average 1.1375) internal successors, (91), 82 states have internal predecessors, (91), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 20:17:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 107 transitions. [2024-11-27 20:17:43,411 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 107 transitions. Word has length 44 [2024-11-27 20:17:43,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:43,412 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 107 transitions. [2024-11-27 20:17:43,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 20:17:43,412 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2024-11-27 20:17:43,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 20:17:43,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:43,413 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-27 20:17:43,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 20:17:43,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-27 20:17:43,618 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:43,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:43,618 INFO L85 PathProgramCache]: Analyzing trace with hash -74860038, now seen corresponding path program 1 times [2024-11-27 20:17:43,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:43,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535735817] [2024-11-27 20:17:43,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:43,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:43,730 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 20:17:43,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:43,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535735817] [2024-11-27 20:17:43,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535735817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:43,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:43,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:43,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694069274] [2024-11-27 20:17:43,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:43,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:17:43,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:43,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:17:43,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:17:43,732 INFO L87 Difference]: Start difference. First operand 93 states and 107 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 20:17:43,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:43,792 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2024-11-27 20:17:43,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:17:43,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 51 [2024-11-27 20:17:43,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:43,794 INFO L225 Difference]: With dead ends: 97 [2024-11-27 20:17:43,794 INFO L226 Difference]: Without dead ends: 96 [2024-11-27 20:17:43,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:17:43,795 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 5 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:43,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 96 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:17:43,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-27 20:17:43,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 93. [2024-11-27 20:17:43,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 80 states have (on average 1.1375) internal successors, (91), 82 states have internal predecessors, (91), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 20:17:43,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 107 transitions. [2024-11-27 20:17:43,807 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 107 transitions. Word has length 51 [2024-11-27 20:17:43,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:43,808 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 107 transitions. [2024-11-27 20:17:43,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 20:17:43,808 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2024-11-27 20:17:43,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 20:17:43,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:43,810 INFO L218 NwaCegarLoop]: trace histogram [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, 1] [2024-11-27 20:17:43,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:17:43,811 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:43,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:43,811 INFO L85 PathProgramCache]: Analyzing trace with hash -74850076, now seen corresponding path program 1 times [2024-11-27 20:17:43,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:43,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437063009] [2024-11-27 20:17:43,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:43,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:43,918 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 20:17:43,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:43,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437063009] [2024-11-27 20:17:43,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437063009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:17:43,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275542801] [2024-11-27 20:17:43,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:43,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:43,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:43,921 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:43,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:17:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:43,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:17:43,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:44,040 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 20:17:44,040 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:17:44,165 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 20:17:44,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275542801] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:17:44,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:17:44,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-27 20:17:44,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975966934] [2024-11-27 20:17:44,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:17:44,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:17:44,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:44,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:17:44,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:17:44,167 INFO L87 Difference]: Start difference. First operand 93 states and 107 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-27 20:17:44,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:44,297 INFO L93 Difference]: Finished difference Result 209 states and 250 transitions. [2024-11-27 20:17:44,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:17:44,298 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 51 [2024-11-27 20:17:44,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:44,299 INFO L225 Difference]: With dead ends: 209 [2024-11-27 20:17:44,299 INFO L226 Difference]: Without dead ends: 208 [2024-11-27 20:17:44,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:17:44,300 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 133 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:44,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 91 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:17:44,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-27 20:17:44,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 176. [2024-11-27 20:17:44,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 158 states have (on average 1.1265822784810127) internal successors, (178), 160 states have internal predecessors, (178), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:17:44,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 204 transitions. [2024-11-27 20:17:44,318 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 204 transitions. Word has length 51 [2024-11-27 20:17:44,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:44,319 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 204 transitions. [2024-11-27 20:17:44,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-27 20:17:44,319 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 204 transitions. [2024-11-27 20:17:44,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-27 20:17:44,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:44,320 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:17:44,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:17:44,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 20:17:44,522 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:17:44,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:44,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1897140560, now seen corresponding path program 1 times [2024-11-27 20:17:44,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:44,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665605845] [2024-11-27 20:17:44,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:44,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:17:44,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914657747] [2024-11-27 20:17:44,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:44,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:44,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:44,551 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:44,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:17:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:44,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 20:17:44,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:45,738 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 20:17:45,738 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:18:16,223 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 20:18:16,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:16,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665605845] [2024-11-27 20:18:16,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:18:16,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914657747] [2024-11-27 20:18:16,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914657747] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:18:16,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:18:16,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2024-11-27 20:18:16,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608946064] [2024-11-27 20:18:16,224 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:18:16,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 20:18:16,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:16,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 20:18:16,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=552, Unknown=1, NotChecked=0, Total=702 [2024-11-27 20:18:16,228 INFO L87 Difference]: Start difference. First operand 176 states and 204 transitions. Second operand has 27 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-27 20:18:21,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:18:25,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:18:47,360 WARN L286 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 99 DAG size of output: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:18:51,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:18:54,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:18:59,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:59,609 INFO L93 Difference]: Finished difference Result 226 states and 261 transitions. [2024-11-27 20:18:59,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-27 20:18:59,610 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 61 [2024-11-27 20:18:59,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:59,612 INFO L225 Difference]: With dead ends: 226 [2024-11-27 20:18:59,612 INFO L226 Difference]: Without dead ends: 224 [2024-11-27 20:18:59,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 40.3s TimeCoverageRelationStatistics Valid=371, Invalid=1268, Unknown=1, NotChecked=0, Total=1640 [2024-11-27 20:18:59,613 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 65 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:59,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 278 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 833 Invalid, 2 Unknown, 0 Unchecked, 18.3s Time] [2024-11-27 20:18:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-27 20:18:59,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 218. [2024-11-27 20:18:59,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 198 states have (on average 1.1111111111111112) internal successors, (220), 200 states have internal predecessors, (220), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:18:59,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 250 transitions. [2024-11-27 20:18:59,640 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 250 transitions. Word has length 61 [2024-11-27 20:18:59,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:59,641 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 250 transitions. [2024-11-27 20:18:59,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-27 20:18:59,641 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 250 transitions. [2024-11-27 20:18:59,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-27 20:18:59,642 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:59,642 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:18:59,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:18:59,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 20:18:59,843 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:18:59,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:59,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2130226692, now seen corresponding path program 2 times [2024-11-27 20:18:59,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:59,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797530611] [2024-11-27 20:18:59,844 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:18:59,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:59,873 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:18:59,873 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:18:59,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1692617008] [2024-11-27 20:18:59,875 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:18:59,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:18:59,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:18:59,879 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:18:59,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:18:59,941 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:18:59,941 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:18:59,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 20:18:59,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:01,619 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 20:19:01,619 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:19:03,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:03,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797530611] [2024-11-27 20:19:03,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:19:03,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692617008] [2024-11-27 20:19:03,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692617008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:19:03,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:19:03,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-27 20:19:03,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94964395] [2024-11-27 20:19:03,004 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:19:03,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:19:03,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:03,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:19:03,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:19:03,006 INFO L87 Difference]: Start difference. First operand 218 states and 250 transitions. Second operand has 16 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 20:19:05,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:19:10,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:19:15,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:19:15,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:15,134 INFO L93 Difference]: Finished difference Result 283 states and 326 transitions. [2024-11-27 20:19:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:19:15,134 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 61 [2024-11-27 20:19:15,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:15,136 INFO L225 Difference]: With dead ends: 283 [2024-11-27 20:19:15,136 INFO L226 Difference]: Without dead ends: 282 [2024-11-27 20:19:15,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=252, Invalid=870, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 20:19:15,137 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 59 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:15,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 172 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 611 Invalid, 3 Unknown, 0 Unchecked, 11.2s Time] [2024-11-27 20:19:15,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-27 20:19:15,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 248. [2024-11-27 20:19:15,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 228 states have (on average 1.1008771929824561) internal successors, (251), 230 states have internal predecessors, (251), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:19:15,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 281 transitions. [2024-11-27 20:19:15,163 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 281 transitions. Word has length 61 [2024-11-27 20:19:15,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:15,163 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 281 transitions. [2024-11-27 20:19:15,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 20:19:15,164 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 281 transitions. [2024-11-27 20:19:15,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-27 20:19:15,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:15,164 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:15,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 20:19:15,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 20:19:15,365 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:19:15,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:15,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1564516022, now seen corresponding path program 2 times [2024-11-27 20:19:15,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:15,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779318966] [2024-11-27 20:19:15,366 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:19:15,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:15,389 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:19:15,389 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:19:15,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1130362355] [2024-11-27 20:19:15,390 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:19:15,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:15,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:15,394 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:19:15,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:19:15,449 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:19:15,449 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:19:15,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-27 20:19:15,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 20:19:16,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:19:54,225 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 20:19:54,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:54,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779318966] [2024-11-27 20:19:54,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:19:54,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130362355] [2024-11-27 20:19:54,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130362355] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:19:54,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:19:54,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [17] total 30 [2024-11-27 20:19:54,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989648112] [2024-11-27 20:19:54,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:54,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:19:54,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:54,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:19:54,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=717, Unknown=0, NotChecked=0, Total=930 [2024-11-27 20:19:54,227 INFO L87 Difference]: Start difference. First operand 248 states and 281 transitions. Second operand has 16 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 20:20:08,248 WARN L286 SmtUtils]: Spent 6.18s on a formula simplification. DAG size of input: 73 DAG size of output: 63 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:20:19,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:21,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:22,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:22,480 INFO L93 Difference]: Finished difference Result 257 states and 289 transitions. [2024-11-27 20:20:22,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:20:22,481 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 65 [2024-11-27 20:20:22,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:22,482 INFO L225 Difference]: With dead ends: 257 [2024-11-27 20:20:22,482 INFO L226 Difference]: Without dead ends: 256 [2024-11-27 20:20:22,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 42.5s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2024-11-27 20:20:22,483 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 48 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:22,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 136 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-11-27 20:20:22,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-27 20:20:22,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 210. [2024-11-27 20:20:22,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 190 states have (on average 1.1) internal successors, (209), 192 states have internal predecessors, (209), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:20:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 239 transitions. [2024-11-27 20:20:22,526 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 239 transitions. Word has length 65 [2024-11-27 20:20:22,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:22,526 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 239 transitions. [2024-11-27 20:20:22,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 20:20:22,526 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 239 transitions. [2024-11-27 20:20:22,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-27 20:20:22,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:22,531 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:22,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-27 20:20:22,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:22,732 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:20:22,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:22,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1691954132, now seen corresponding path program 1 times [2024-11-27 20:20:22,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:22,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673932709] [2024-11-27 20:20:22,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:22,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:22,941 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:20:22,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:20:22,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673932709] [2024-11-27 20:20:22,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673932709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:20:22,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492349105] [2024-11-27 20:20:22,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:22,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:22,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:20:22,944 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:20:22,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:20:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:22,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:20:22,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:20:23,237 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:20:23,237 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:20:23,457 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:20:23,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492349105] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:20:23,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:20:23,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-27 20:20:23,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214220771] [2024-11-27 20:20:23,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:20:23,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:20:23,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:20:23,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:20:23,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:20:23,460 INFO L87 Difference]: Start difference. First operand 210 states and 239 transitions. Second operand has 16 states, 15 states have (on average 8.533333333333333) internal successors, (128), 16 states have internal predecessors, (128), 11 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2024-11-27 20:20:23,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:23,819 INFO L93 Difference]: Finished difference Result 363 states and 419 transitions. [2024-11-27 20:20:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:20:23,820 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.533333333333333) internal successors, (128), 16 states have internal predecessors, (128), 11 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) Word has length 72 [2024-11-27 20:20:23,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:23,822 INFO L225 Difference]: With dead ends: 363 [2024-11-27 20:20:23,822 INFO L226 Difference]: Without dead ends: 362 [2024-11-27 20:20:23,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:20:23,823 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 177 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:23,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 186 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:20:23,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-27 20:20:23,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 321. [2024-11-27 20:20:23,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 294 states have (on average 1.0952380952380953) internal successors, (322), 296 states have internal predecessors, (322), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:20:23,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 366 transitions. [2024-11-27 20:20:23,896 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 366 transitions. Word has length 72 [2024-11-27 20:20:23,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:23,896 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 366 transitions. [2024-11-27 20:20:23,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.533333333333333) internal successors, (128), 16 states have internal predecessors, (128), 11 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2024-11-27 20:20:23,897 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 366 transitions. [2024-11-27 20:20:23,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-27 20:20:23,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:23,898 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:23,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 20:20:24,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:24,099 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:20:24,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:24,100 INFO L85 PathProgramCache]: Analyzing trace with hash -370256636, now seen corresponding path program 3 times [2024-11-27 20:20:24,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:20:24,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283743814] [2024-11-27 20:20:24,101 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:20:24,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:20:24,173 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 20:20:24,175 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:20:24,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132666831] [2024-11-27 20:20:24,177 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:20:24,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:24,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:20:24,179 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:20:24,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:20:24,492 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 20:20:24,492 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:20:24,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-27 20:20:24,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:20:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 45 proven. 34 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-27 20:20:57,933 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:21:54,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:54,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283743814] [2024-11-27 20:21:54,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:21:54,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132666831] [2024-11-27 20:21:54,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132666831] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:21:54,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:21:54,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-27 20:21:54,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681716250] [2024-11-27 20:21:54,227 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:21:54,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:21:54,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:21:54,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:21:54,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=607, Unknown=7, NotChecked=0, Total=756 [2024-11-27 20:21:54,228 INFO L87 Difference]: Start difference. First operand 321 states and 366 transitions. Second operand has 18 states, 16 states have (on average 3.25) internal successors, (52), 17 states have internal predecessors, (52), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:21:59,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:22:04,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:22:06,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:22:08,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:22:12,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:22:16,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:22:20,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:22:24,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:22:34,889 WARN L286 SmtUtils]: Spent 8.92s on a formula simplification. DAG size of input: 78 DAG size of output: 97 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:22:37,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:22:45,773 WARN L286 SmtUtils]: Spent 7.19s on a formula simplification. DAG size of input: 83 DAG size of output: 101 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:22:48,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:22:52,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:23:10,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:23:16,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:23:30,056 WARN L286 SmtUtils]: Spent 7.81s on a formula simplification. DAG size of input: 231 DAG size of output: 298 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:23:31,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:23:35,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:23:54,207 WARN L286 SmtUtils]: Spent 7.65s on a formula simplification. DAG size of input: 235 DAG size of output: 298 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:23:55,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:23:56,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:24:00,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:24:04,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:24:08,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:24:08,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:08,288 INFO L93 Difference]: Finished difference Result 362 states and 412 transitions. [2024-11-27 20:24:08,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:24:08,289 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.25) internal successors, (52), 17 states have internal predecessors, (52), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 95 [2024-11-27 20:24:08,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:08,292 INFO L225 Difference]: With dead ends: 362 [2024-11-27 20:24:08,292 INFO L226 Difference]: Without dead ends: 361 [2024-11-27 20:24:08,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 127.8s TimeCoverageRelationStatistics Valid=226, Invalid=887, Unknown=9, NotChecked=0, Total=1122 [2024-11-27 20:24:08,293 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:08,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 137 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 585 Invalid, 11 Unknown, 0 Unchecked, 72.8s Time] [2024-11-27 20:24:08,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-27 20:24:08,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 293. [2024-11-27 20:24:08,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 268 states have (on average 1.0895522388059702) internal successors, (292), 269 states have internal predecessors, (292), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:24:08,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 334 transitions. [2024-11-27 20:24:08,407 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 334 transitions. Word has length 95 [2024-11-27 20:24:08,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:08,407 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 334 transitions. [2024-11-27 20:24:08,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.25) internal successors, (52), 17 states have internal predecessors, (52), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:24:08,407 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 334 transitions. [2024-11-27 20:24:08,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-27 20:24:08,409 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:08,409 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:08,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 20:24:08,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:08,610 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:24:08,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:08,610 INFO L85 PathProgramCache]: Analyzing trace with hash -2077275952, now seen corresponding path program 2 times [2024-11-27 20:24:08,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:08,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552755434] [2024-11-27 20:24:08,610 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:08,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:08,626 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:08,626 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-27 20:24:10,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:10,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552755434] [2024-11-27 20:24:10,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552755434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:10,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641470525] [2024-11-27 20:24:10,055 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:10,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:10,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:10,059 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:10,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:24:10,124 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:10,124 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:10,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:24:10,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:12,445 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-27 20:24:12,445 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:15,422 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-27 20:24:15,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641470525] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:15,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:15,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-27 20:24:15,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124511289] [2024-11-27 20:24:15,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:15,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:24:15,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:15,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:24:15,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:24:15,425 INFO L87 Difference]: Start difference. First operand 293 states and 334 transitions. Second operand has 22 states, 21 states have (on average 9.19047619047619) internal successors, (193), 22 states have internal predecessors, (193), 19 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 18 states have call predecessors, (24), 19 states have call successors, (24) [2024-11-27 20:24:20,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:20,846 INFO L93 Difference]: Finished difference Result 824 states and 976 transitions. [2024-11-27 20:24:20,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 20:24:20,847 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.19047619047619) internal successors, (193), 22 states have internal predecessors, (193), 19 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 18 states have call predecessors, (24), 19 states have call successors, (24) Word has length 102 [2024-11-27 20:24:20,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:20,854 INFO L225 Difference]: With dead ends: 824 [2024-11-27 20:24:20,854 INFO L226 Difference]: Without dead ends: 823 [2024-11-27 20:24:20,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=449, Invalid=883, Unknown=0, NotChecked=0, Total=1332 [2024-11-27 20:24:20,859 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 493 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:20,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 213 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 20:24:20,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-11-27 20:24:21,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 630. [2024-11-27 20:24:21,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 584 states have (on average 1.0924657534246576) internal successors, (638), 585 states have internal predecessors, (638), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 20:24:21,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 722 transitions. [2024-11-27 20:24:21,122 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 722 transitions. Word has length 102 [2024-11-27 20:24:21,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:21,122 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 722 transitions. [2024-11-27 20:24:21,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.19047619047619) internal successors, (193), 22 states have internal predecessors, (193), 19 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 18 states have call predecessors, (24), 19 states have call successors, (24) [2024-11-27 20:24:21,123 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 722 transitions. [2024-11-27 20:24:21,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 20:24:21,124 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:21,124 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:21,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 20:24:21,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 20:24:21,325 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:24:21,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:21,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1398557786, now seen corresponding path program 2 times [2024-11-27 20:24:21,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:21,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706351727] [2024-11-27 20:24:21,326 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:21,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:21,345 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:21,345 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:22,800 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-27 20:24:22,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:22,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706351727] [2024-11-27 20:24:22,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706351727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:22,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540851507] [2024-11-27 20:24:22,800 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:22,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:22,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:22,803 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:22,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:24:22,875 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:22,876 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:22,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:24:22,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:26,809 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-27 20:24:26,809 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-27 20:24:30,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540851507] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:30,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:30,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-27 20:24:30,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560140978] [2024-11-27 20:24:30,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:30,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 20:24:30,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:30,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 20:24:30,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:24:30,206 INFO L87 Difference]: Start difference. First operand 630 states and 722 transitions. Second operand has 25 states, 24 states have (on average 8.833333333333334) internal successors, (212), 25 states have internal predecessors, (212), 17 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) [2024-11-27 20:24:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:37,481 INFO L93 Difference]: Finished difference Result 996 states and 1145 transitions. [2024-11-27 20:24:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:24:37,482 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 8.833333333333334) internal successors, (212), 25 states have internal predecessors, (212), 17 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) Word has length 110 [2024-11-27 20:24:37,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:37,486 INFO L225 Difference]: With dead ends: 996 [2024-11-27 20:24:37,486 INFO L226 Difference]: Without dead ends: 995 [2024-11-27 20:24:37,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=517, Invalid=1205, Unknown=0, NotChecked=0, Total=1722 [2024-11-27 20:24:37,488 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 432 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:37,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 324 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-27 20:24:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-27 20:24:37,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 776. [2024-11-27 20:24:37,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 720 states have (on average 1.086111111111111) internal successors, (782), 721 states have internal predecessors, (782), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-27 20:24:37,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 886 transitions. [2024-11-27 20:24:37,896 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 886 transitions. Word has length 110 [2024-11-27 20:24:37,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:37,897 INFO L471 AbstractCegarLoop]: Abstraction has 776 states and 886 transitions. [2024-11-27 20:24:37,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 8.833333333333334) internal successors, (212), 25 states have internal predecessors, (212), 17 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) [2024-11-27 20:24:37,897 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 886 transitions. [2024-11-27 20:24:37,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-27 20:24:37,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:37,900 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:37,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 20:24:38,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-27 20:24:38,100 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:24:38,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:38,101 INFO L85 PathProgramCache]: Analyzing trace with hash 947160282, now seen corresponding path program 3 times [2024-11-27 20:24:38,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:38,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944290501] [2024-11-27 20:24:38,101 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:24:38,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:38,157 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-27 20:24:38,157 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:40,438 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 263 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-27 20:24:40,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:40,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944290501] [2024-11-27 20:24:40,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944290501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:40,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678690402] [2024-11-27 20:24:40,439 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:24:40,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:40,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:40,441 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:40,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 20:24:40,506 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 20:24:40,506 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:40,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:24:40,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:24:42,266 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:42,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678690402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:42,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:42,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2024-11-27 20:24:42,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173371004] [2024-11-27 20:24:42,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:42,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:24:42,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:42,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:24:42,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:24:42,268 INFO L87 Difference]: Start difference. First operand 776 states and 886 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-27 20:24:43,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:43,477 INFO L93 Difference]: Finished difference Result 812 states and 922 transitions. [2024-11-27 20:24:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:24:43,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 144 [2024-11-27 20:24:43,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:43,481 INFO L225 Difference]: With dead ends: 812 [2024-11-27 20:24:43,481 INFO L226 Difference]: Without dead ends: 811 [2024-11-27 20:24:43,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:24:43,482 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 6 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:43,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 64 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:24:43,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-11-27 20:24:43,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 301. [2024-11-27 20:24:43,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 278 states have (on average 1.0683453237410072) internal successors, (297), 278 states have internal predecessors, (297), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:24:43,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 337 transitions. [2024-11-27 20:24:43,695 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 337 transitions. Word has length 144 [2024-11-27 20:24:43,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:43,695 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 337 transitions. [2024-11-27 20:24:43,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-27 20:24:43,696 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 337 transitions. [2024-11-27 20:24:43,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-27 20:24:43,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:43,698 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:43,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-27 20:24:43,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 20:24:43,899 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:24:43,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:43,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1468016484, now seen corresponding path program 3 times [2024-11-27 20:24:43,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:43,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810901734] [2024-11-27 20:24:43,899 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:24:43,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:44,188 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-11-27 20:24:44,189 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:48,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 0 proven. 1536 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-11-27 20:24:48,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:48,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810901734] [2024-11-27 20:24:48,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810901734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:48,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671277977] [2024-11-27 20:24:48,639 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:24:48,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:48,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:48,641 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:48,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358d0364-b7f3-48e8-97e4-2554721d13e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:24:48,706 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 20:24:48,706 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:48,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 20:24:48,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:15,591 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|ULTIMATE.start_main_~b~0#1| Int)) (and (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 20) (exists ((|ULTIMATE.start_main_~a~0#1| Int)) (and (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse0 (* |c_ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) .cse0) (<= (+ |ULTIMATE.start_main_~y~0#1| 1) 0) (<= .cse0 9223372036854775807)))) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|))))) (exists ((|ULTIMATE.start_main_~b~0#1| Int)) (and (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 20) (exists ((|ULTIMATE.start_main_~a~0#1| Int)) (and (exists ((v_z_85 Int) (v_y_85 Int)) (let ((.cse1 (+ (* (* |c_ULTIMATE.start_main_~x~0#1| v_y_85) 2) (* |c_ULTIMATE.start_main_~x~0#1| v_z_85)))) (and (<= .cse1 9223372036854775807) (<= 0 v_z_85) (not (= (+ v_z_85 (* v_y_85 2)) 0)) (<= v_z_85 1) (not (= v_z_85 1)) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) .cse1)))) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|)))))) is different from true [2024-11-27 20:25:15,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 120 proven. 36 refuted. 0 times theorem prover too weak. 1836 trivial. 30 not checked. [2024-11-27 20:25:15,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:25:22,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671277977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:25:22,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:25:22,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12] total 29 [2024-11-27 20:25:22,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761127239] [2024-11-27 20:25:22,697 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:25:22,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-27 20:25:22,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:22,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-27 20:25:22,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=913, Unknown=1, NotChecked=66, Total=1260 [2024-11-27 20:25:22,700 INFO L87 Difference]: Start difference. First operand 301 states and 337 transitions. Second operand has 30 states, 29 states have (on average 7.896551724137931) internal successors, (229), 28 states have internal predecessors, (229), 22 states have call successors, (23), 1 states have call predecessors, (23), 3 states have return successors, (24), 21 states have call predecessors, (24), 22 states have call successors, (24)