./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.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_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/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_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/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_367f4492-b942-45b5-a219-1a1172b156c2/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 f5913f104892d2161c7fca45f1b4b94f25718ce08a5c1f24a1d3fced8b0f4ce5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:07:52,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:07:52,923 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:07:52,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:07:52,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:07:52,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:07:52,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:07:52,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:07:52,961 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:07:52,961 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:07:52,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:07:52,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:07:52,962 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:07:52,962 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:07:52,962 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:07:52,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:07:52,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:07:52,963 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:07:52,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:07:52,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:07:52,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:07:52,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:07:52,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:07:52,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:07:52,964 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:07:52,964 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:07:52,964 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:07:52,964 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:07:52,965 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:07:52,965 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:07:52,965 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:07:52,965 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:07:52,965 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:07:52,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:07:52,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:07:52,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:07:52,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:07:52,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:07:52,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:07:52,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:07:52,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:07:52,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:07:52,967 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:07:52,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:07:52,967 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:07:52,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:07:52,967 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:07:52,967 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:07:52,967 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:07:52,968 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:07:52,968 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_367f4492-b942-45b5-a219-1a1172b156c2/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 -> f5913f104892d2161c7fca45f1b4b94f25718ce08a5c1f24a1d3fced8b0f4ce5 [2024-11-27 20:07:53,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:07:53,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:07:53,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:07:53,345 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:07:53,345 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:07:53,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.c [2024-11-27 20:07:57,092 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/data/fb6c77000/f9c2582088744605a0461ca221375503/FLAGe9af51a05 [2024-11-27 20:07:57,464 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:07:57,465 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.c [2024-11-27 20:07:57,477 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/data/fb6c77000/f9c2582088744605a0461ca221375503/FLAGe9af51a05 [2024-11-27 20:07:57,497 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/data/fb6c77000/f9c2582088744605a0461ca221375503 [2024-11-27 20:07:57,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:07:57,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:07:57,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:07:57,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:07:57,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:07:57,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1437f1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57, skipping insertion in model container [2024-11-27 20:07:57,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,531 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:07:57,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:07:57,758 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:07:57,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:07:57,792 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:07:57,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57 WrapperNode [2024-11-27 20:07:57,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:07:57,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:07:57,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:07:57,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:07:57,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,849 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2024-11-27 20:07:57,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:07:57,854 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:07:57,854 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:07:57,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:07:57,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,873 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,903 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 20:07:57,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,911 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,916 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:07:57,936 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:07:57,936 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:07:57,936 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:07:57,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (1/1) ... [2024-11-27 20:07:57,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:07:57,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:57,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:07:57,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:07:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:07:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:07:58,029 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:07:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:07:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:07:58,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:07:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:07:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:07:58,117 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:07:58,119 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:07:58,487 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-27 20:07:58,487 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:07:58,507 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:07:58,507 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:07:58,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:07:58 BoogieIcfgContainer [2024-11-27 20:07:58,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:07:58,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:07:58,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:07:58,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:07:58,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:07:57" (1/3) ... [2024-11-27 20:07:58,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529ee071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:07:58, skipping insertion in model container [2024-11-27 20:07:58,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:57" (2/3) ... [2024-11-27 20:07:58,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529ee071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:07:58, skipping insertion in model container [2024-11-27 20:07:58,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:07:58" (3/3) ... [2024-11-27 20:07:58,521 INFO L128 eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound10.c [2024-11-27 20:07:58,542 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:07:58,544 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG geo1-u_valuebound10.c that has 3 procedures, 67 locations, 1 initial locations, 1 loop locations, and 22 error locations. [2024-11-27 20:07:58,614 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:07:58,635 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;@7bebf96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:07:58,635 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-27 20:07:58,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 38 states have (on average 1.7105263157894737) internal successors, (65), 60 states have internal predecessors, (65), 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 20:07:58,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 20:07:58,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:58,652 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:58,653 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:07:58,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:58,662 INFO L85 PathProgramCache]: Analyzing trace with hash 979589762, now seen corresponding path program 1 times [2024-11-27 20:07:58,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:58,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809012215] [2024-11-27 20:07:58,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:58,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:58,889 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:07:58,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:58,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809012215] [2024-11-27 20:07:58,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809012215] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:58,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861463551] [2024-11-27 20:07:58,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:58,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:58,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:58,899 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:58,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:07:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:58,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:07:58,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:58,988 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:07:58,988 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:07:58,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861463551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:58,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:58,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:07:58,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63945296] [2024-11-27 20:07:58,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:58,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:07:58,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:59,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:07:59,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:07:59,025 INFO L87 Difference]: Start difference. First operand has 67 states, 38 states have (on average 1.7105263157894737) internal successors, (65), 60 states have internal predecessors, (65), 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) 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:07:59,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:59,054 INFO L93 Difference]: Finished difference Result 130 states and 145 transitions. [2024-11-27 20:07:59,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:07:59,057 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-27 20:07:59,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:59,066 INFO L225 Difference]: With dead ends: 130 [2024-11-27 20:07:59,066 INFO L226 Difference]: Without dead ends: 60 [2024-11-27 20:07:59,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 20:07:59,082 INFO L435 NwaCegarLoop]: 68 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, 68 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 20:07:59,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:59,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-27 20:07:59,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-27 20:07:59,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 54 states have internal predecessors, (55), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:07:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2024-11-27 20:07:59,150 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 15 [2024-11-27 20:07:59,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:59,150 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2024-11-27 20:07:59,150 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:07:59,151 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2024-11-27 20:07:59,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 20:07:59,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:59,155 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:59,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:07:59,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:59,356 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:07:59,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:59,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1682501382, now seen corresponding path program 1 times [2024-11-27 20:07:59,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:59,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790136228] [2024-11-27 20:07:59,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:59,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:07:59,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363423578] [2024-11-27 20:07:59,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:59,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:59,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:59,394 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:59,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:07:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:59,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:59,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:07:59,515 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:07:59,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:59,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790136228] [2024-11-27 20:07:59,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:59,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363423578] [2024-11-27 20:07:59,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363423578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:59,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:59,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:07:59,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456790916] [2024-11-27 20:07:59,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:59,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:59,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:59,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:59,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:59,519 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:07:59,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:59,709 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2024-11-27 20:07:59,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:59,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-27 20:07:59,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:59,711 INFO L225 Difference]: With dead ends: 90 [2024-11-27 20:07:59,711 INFO L226 Difference]: Without dead ends: 80 [2024-11-27 20:07:59,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:59,712 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 18 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:59,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 67 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:07:59,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-27 20:07:59,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2024-11-27 20:07:59,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.58) internal successors, (79), 71 states have internal predecessors, (79), 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 20:07:59,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2024-11-27 20:07:59,732 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 15 [2024-11-27 20:07:59,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:59,733 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2024-11-27 20:07:59,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:07:59,734 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2024-11-27 20:07:59,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 20:07:59,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:59,735 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:59,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:07:59,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:59,939 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:07:59,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:59,940 INFO L85 PathProgramCache]: Analyzing trace with hash 681873418, now seen corresponding path program 1 times [2024-11-27 20:07:59,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:59,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032458246] [2024-11-27 20:07:59,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:59,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:07:59,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1926301546] [2024-11-27 20:07:59,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:59,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:59,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:59,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:59,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:08:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:00,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:08:00,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:00,188 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:08:00,188 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:08:00,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:00,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032458246] [2024-11-27 20:08:00,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:00,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926301546] [2024-11-27 20:08:00,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926301546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:00,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:00,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:08:00,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284808343] [2024-11-27 20:08:00,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:00,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:08:00,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:00,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:08:00,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:00,192 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:08:00,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:00,430 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2024-11-27 20:08:00,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:08:00,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-27 20:08:00,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:00,433 INFO L225 Difference]: With dead ends: 82 [2024-11-27 20:08:00,435 INFO L226 Difference]: Without dead ends: 80 [2024-11-27 20:08:00,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:00,436 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 14 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:00,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 65 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:08:00,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-27 20:08:00,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2024-11-27 20:08:00,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.54) internal successors, (77), 71 states have internal predecessors, (77), 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 20:08:00,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2024-11-27 20:08:00,458 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 19 [2024-11-27 20:08:00,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:00,458 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2024-11-27 20:08:00,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:08:00,459 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2024-11-27 20:08:00,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-27 20:08:00,459 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:00,459 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:00,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:08:00,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:00,665 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:00,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:00,666 INFO L85 PathProgramCache]: Analyzing trace with hash -336760466, now seen corresponding path program 1 times [2024-11-27 20:08:00,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:00,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093572683] [2024-11-27 20:08:00,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:00,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:00,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:08:00,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:00,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093572683] [2024-11-27 20:08:00,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093572683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:00,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:00,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:08:00,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248590564] [2024-11-27 20:08:00,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:00,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:08:00,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:00,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:08:00,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:08:00,893 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:08:01,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:01,055 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2024-11-27 20:08:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:08:01,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-27 20:08:01,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:01,057 INFO L225 Difference]: With dead ends: 82 [2024-11-27 20:08:01,057 INFO L226 Difference]: Without dead ends: 80 [2024-11-27 20:08:01,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 20:08:01,058 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 30 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:01,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 67 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:08:01,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-27 20:08:01,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2024-11-27 20:08:01,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.5) internal successors, (75), 71 states have internal predecessors, (75), 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 20:08:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2024-11-27 20:08:01,067 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 20 [2024-11-27 20:08:01,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:01,068 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2024-11-27 20:08:01,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:08:01,068 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2024-11-27 20:08:01,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-27 20:08:01,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:01,069 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:01,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:08:01,070 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:01,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:01,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2081576576, now seen corresponding path program 1 times [2024-11-27 20:08:01,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:01,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911485313] [2024-11-27 20:08:01,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:01,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:01,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:08:01,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:01,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911485313] [2024-11-27 20:08:01,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911485313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:01,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:01,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:08:01,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001746134] [2024-11-27 20:08:01,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:01,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:08:01,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:01,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:08:01,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:01,266 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:08:01,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:01,296 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2024-11-27 20:08:01,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:08:01,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2024-11-27 20:08:01,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:01,298 INFO L225 Difference]: With dead ends: 80 [2024-11-27 20:08:01,298 INFO L226 Difference]: Without dead ends: 78 [2024-11-27 20:08:01,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:01,299 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 1 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:01,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 110 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:08:01,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-27 20:08:01,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-27 20:08:01,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.46) internal successors, (73), 71 states have internal predecessors, (73), 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 20:08:01,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2024-11-27 20:08:01,319 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 29 [2024-11-27 20:08:01,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:01,319 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2024-11-27 20:08:01,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:08:01,319 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2024-11-27 20:08:01,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-27 20:08:01,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:01,324 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:01,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:08:01,325 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:01,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:01,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1059631927, now seen corresponding path program 1 times [2024-11-27 20:08:01,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:01,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912973888] [2024-11-27 20:08:01,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:01,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:01,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:08:01,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:01,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912973888] [2024-11-27 20:08:01,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912973888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:01,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:01,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:08:01,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711276223] [2024-11-27 20:08:01,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:01,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:08:01,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:01,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:08:01,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:08:01,500 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:08:01,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:01,945 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2024-11-27 20:08:01,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:08:01,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-11-27 20:08:01,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:01,947 INFO L225 Difference]: With dead ends: 78 [2024-11-27 20:08:01,947 INFO L226 Difference]: Without dead ends: 77 [2024-11-27 20:08:01,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 20:08:01,948 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 34 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:01,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 83 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:08:01,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-27 20:08:01,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-27 20:08:01,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 50 states have (on average 1.44) internal successors, (72), 70 states have internal predecessors, (72), 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 20:08:01,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2024-11-27 20:08:01,967 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 31 [2024-11-27 20:08:01,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:01,968 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2024-11-27 20:08:01,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:08:01,968 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2024-11-27 20:08:01,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 20:08:01,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:01,969 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:01,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:08:01,970 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:01,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:01,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1511148538, now seen corresponding path program 1 times [2024-11-27 20:08:01,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:01,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708340050] [2024-11-27 20:08:01,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:01,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:08:02,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059583843] [2024-11-27 20:08:02,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:02,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:02,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:02,036 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:02,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:08:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:02,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:08:02,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:02,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:08:02,306 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:08:02,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:02,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708340050] [2024-11-27 20:08:02,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:02,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059583843] [2024-11-27 20:08:02,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059583843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:02,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:02,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:08:02,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629304049] [2024-11-27 20:08:02,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:02,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:08:02,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:02,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:08:02,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:08:02,309 INFO L87 Difference]: Start difference. First operand 77 states and 80 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:08:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:02,468 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2024-11-27 20:08:02,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:08:02,469 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-11-27 20:08:02,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:02,470 INFO L225 Difference]: With dead ends: 82 [2024-11-27 20:08:02,471 INFO L226 Difference]: Without dead ends: 81 [2024-11-27 20:08:02,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 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 20:08:02,472 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 8 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:02,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 89 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:08:02,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-27 20:08:02,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2024-11-27 20:08:02,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 72 states have internal predecessors, (74), 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 20:08:02,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2024-11-27 20:08:02,483 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 32 [2024-11-27 20:08:02,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:02,483 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2024-11-27 20:08:02,483 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:08:02,483 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2024-11-27 20:08:02,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-27 20:08:02,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:02,484 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:08:02,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:08:02,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:02,689 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:02,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:02,690 INFO L85 PathProgramCache]: Analyzing trace with hash 399035673, now seen corresponding path program 1 times [2024-11-27 20:08:02,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:02,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923540773] [2024-11-27 20:08:02,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:02,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:08:02,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721605212] [2024-11-27 20:08:02,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:02,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:02,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:02,724 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:02,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:08:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:02,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:08:02,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:03,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:08:03,072 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:08:03,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:03,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923540773] [2024-11-27 20:08:03,072 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:03,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721605212] [2024-11-27 20:08:03,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721605212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:03,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:03,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:08:03,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131903415] [2024-11-27 20:08:03,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:03,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:08:03,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:03,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:08:03,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:08:03,075 INFO L87 Difference]: Start difference. First operand 79 states and 82 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:08:03,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:03,285 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2024-11-27 20:08:03,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:08:03,286 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-11-27 20:08:03,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:03,287 INFO L225 Difference]: With dead ends: 84 [2024-11-27 20:08:03,288 INFO L226 Difference]: Without dead ends: 83 [2024-11-27 20:08:03,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:08:03,289 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 8 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:03,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 77 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:08:03,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-27 20:08:03,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2024-11-27 20:08:03,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 73 states have internal predecessors, (75), 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 20:08:03,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2024-11-27 20:08:03,310 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 33 [2024-11-27 20:08:03,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:03,311 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2024-11-27 20:08:03,311 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:08:03,311 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2024-11-27 20:08:03,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-27 20:08:03,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:03,314 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:03,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 20:08:03,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:03,519 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:03,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:03,520 INFO L85 PathProgramCache]: Analyzing trace with hash -514795928, now seen corresponding path program 1 times [2024-11-27 20:08:03,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:03,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696506364] [2024-11-27 20:08:03,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:03,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:03,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:08:03,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:03,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696506364] [2024-11-27 20:08:03,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696506364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:03,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:03,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:08:03,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122382803] [2024-11-27 20:08:03,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:03,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:08:03,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:03,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:08:03,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:08:03,709 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:08:03,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:03,946 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2024-11-27 20:08:03,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:08:03,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-11-27 20:08:03,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:03,948 INFO L225 Difference]: With dead ends: 80 [2024-11-27 20:08:03,948 INFO L226 Difference]: Without dead ends: 72 [2024-11-27 20:08:03,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 20:08:03,949 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 46 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:03,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 67 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:08:03,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-27 20:08:03,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-27 20:08:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 65 states have internal predecessors, (66), 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 20:08:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2024-11-27 20:08:03,958 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 34 [2024-11-27 20:08:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:03,959 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2024-11-27 20:08:03,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:08:03,959 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2024-11-27 20:08:03,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-27 20:08:03,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:03,960 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:03,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:08:03,960 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:03,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash 883969356, now seen corresponding path program 1 times [2024-11-27 20:08:03,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:03,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031980637] [2024-11-27 20:08:03,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:03,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:08:03,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [98667509] [2024-11-27 20:08:03,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:03,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:03,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:03,985 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:03,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:08:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:04,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:08:04,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:04,380 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:08:04,380 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:04,735 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:08:04,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:04,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031980637] [2024-11-27 20:08:04,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:04,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98667509] [2024-11-27 20:08:04,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98667509] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:08:04,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:08:04,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 20:08:04,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30378913] [2024-11-27 20:08:04,737 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:04,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:08:04,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:04,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:08:04,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:08:04,740 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:08:05,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:05,204 INFO L93 Difference]: Finished difference Result 97 states and 116 transitions. [2024-11-27 20:08:05,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:08:05,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 36 [2024-11-27 20:08:05,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:05,206 INFO L225 Difference]: With dead ends: 97 [2024-11-27 20:08:05,207 INFO L226 Difference]: Without dead ends: 96 [2024-11-27 20:08:05,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:08:05,208 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 90 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:05,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 80 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:08:05,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-27 20:08:05,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2024-11-27 20:08:05,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 66 states have (on average 1.5151515151515151) internal successors, (100), 84 states have internal predecessors, (100), 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 20:08:05,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 110 transitions. [2024-11-27 20:08:05,225 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 110 transitions. Word has length 36 [2024-11-27 20:08:05,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:05,225 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 110 transitions. [2024-11-27 20:08:05,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:08:05,226 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 110 transitions. [2024-11-27 20:08:05,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-27 20:08:05,232 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:05,232 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:05,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:08:05,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 20:08:05,433 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:05,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:05,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1633246306, now seen corresponding path program 1 times [2024-11-27 20:08:05,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:05,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701808368] [2024-11-27 20:08:05,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:05,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:08:05,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1640380153] [2024-11-27 20:08:05,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:05,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:05,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:05,483 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:05,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:08:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:05,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:08:05,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:08:05,616 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:05,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:05,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701808368] [2024-11-27 20:08:05,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:05,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640380153] [2024-11-27 20:08:05,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640380153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:05,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:08:05,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-27 20:08:05,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271948153] [2024-11-27 20:08:05,940 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:05,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:08:05,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:05,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:08:05,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:08:05,942 INFO L87 Difference]: Start difference. First operand 92 states and 110 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:08:06,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:06,118 INFO L93 Difference]: Finished difference Result 92 states and 110 transitions. [2024-11-27 20:08:06,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:08:06,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2024-11-27 20:08:06,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:06,120 INFO L225 Difference]: With dead ends: 92 [2024-11-27 20:08:06,120 INFO L226 Difference]: Without dead ends: 88 [2024-11-27 20:08:06,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:08:06,121 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 18 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:06,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 68 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:08:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-27 20:08:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-27 20:08:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 80 states have internal predecessors, (93), 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 20:08:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 103 transitions. [2024-11-27 20:08:06,138 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 103 transitions. Word has length 37 [2024-11-27 20:08:06,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:06,139 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 103 transitions. [2024-11-27 20:08:06,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:08:06,140 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 103 transitions. [2024-11-27 20:08:06,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 20:08:06,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:06,141 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:06,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 20:08:06,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:06,344 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:06,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:06,345 INFO L85 PathProgramCache]: Analyzing trace with hash -908972018, now seen corresponding path program 1 times [2024-11-27 20:08:06,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:06,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488469744] [2024-11-27 20:08:06,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:06,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:08:06,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780797862] [2024-11-27 20:08:06,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:06,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:06,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:06,382 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:06,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:08:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:06,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:08:06,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:06,719 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:08:06,720 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:06,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:06,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488469744] [2024-11-27 20:08:06,990 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:06,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780797862] [2024-11-27 20:08:06,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780797862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:06,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:08:06,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-27 20:08:06,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149762532] [2024-11-27 20:08:06,991 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:06,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:08:06,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:06,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:08:06,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:08:06,993 INFO L87 Difference]: Start difference. First operand 88 states and 103 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:08:07,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:07,268 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2024-11-27 20:08:07,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:08:07,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2024-11-27 20:08:07,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:07,270 INFO L225 Difference]: With dead ends: 96 [2024-11-27 20:08:07,272 INFO L226 Difference]: Without dead ends: 92 [2024-11-27 20:08:07,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:08:07,274 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 56 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:07,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 86 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:08:07,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-27 20:08:07,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2024-11-27 20:08:07,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 68 states have (on average 1.3529411764705883) internal successors, (92), 82 states have internal predecessors, (92), 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 20:08:07,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2024-11-27 20:08:07,294 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 38 [2024-11-27 20:08:07,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:07,295 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2024-11-27 20:08:07,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:08:07,295 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2024-11-27 20:08:07,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-27 20:08:07,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:07,296 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:07,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:08:07,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:07,501 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:07,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:07,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1886638564, now seen corresponding path program 1 times [2024-11-27 20:08:07,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:07,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941936122] [2024-11-27 20:08:07,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:07,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:08:07,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195983278] [2024-11-27 20:08:07,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:07,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:07,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:07,526 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:07,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:08:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:07,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:08:07,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:07,874 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:08:07,874 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:08,122 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:08:08,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:08,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941936122] [2024-11-27 20:08:08,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:08,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195983278] [2024-11-27 20:08:08,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195983278] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:08:08,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:08:08,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2024-11-27 20:08:08,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072482066] [2024-11-27 20:08:08,124 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:08,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:08:08,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:08,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:08:08,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:08:08,126 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-27 20:08:08,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:08,951 INFO L93 Difference]: Finished difference Result 122 states and 146 transitions. [2024-11-27 20:08:08,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:08:08,951 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 39 [2024-11-27 20:08:08,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:08,953 INFO L225 Difference]: With dead ends: 122 [2024-11-27 20:08:08,953 INFO L226 Difference]: Without dead ends: 120 [2024-11-27 20:08:08,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:08:08,954 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 126 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:08,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 112 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:08:08,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-27 20:08:08,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 111. [2024-11-27 20:08:08,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 102 states have internal predecessors, (123), 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 20:08:08,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 135 transitions. [2024-11-27 20:08:08,975 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 135 transitions. Word has length 39 [2024-11-27 20:08:08,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:08,975 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 135 transitions. [2024-11-27 20:08:08,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-27 20:08:08,976 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 135 transitions. [2024-11-27 20:08:08,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-27 20:08:08,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:08,978 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:08,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 20:08:09,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:09,179 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:09,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:09,180 INFO L85 PathProgramCache]: Analyzing trace with hash 583462758, now seen corresponding path program 1 times [2024-11-27 20:08:09,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:09,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546942358] [2024-11-27 20:08:09,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:09,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:08:09,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029409398] [2024-11-27 20:08:09,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:09,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:09,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:09,211 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:09,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:08:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:09,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:08:09,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:08:09,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:08:09,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:09,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546942358] [2024-11-27 20:08:09,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:09,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029409398] [2024-11-27 20:08:09,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029409398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:08:09,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:08:09,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-27 20:08:09,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119467711] [2024-11-27 20:08:09,804 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:09,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:08:09,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:09,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:08:09,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:08:09,805 INFO L87 Difference]: Start difference. First operand 111 states and 135 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 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 20:08:14,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:08:18,700 WARN L539 Checker$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 20:08:20,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:20,354 INFO L93 Difference]: Finished difference Result 116 states and 135 transitions. [2024-11-27 20:08:20,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:08:20,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 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 41 [2024-11-27 20:08:20,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:20,356 INFO L225 Difference]: With dead ends: 116 [2024-11-27 20:08:20,356 INFO L226 Difference]: Without dead ends: 112 [2024-11-27 20:08:20,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:08:20,357 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 48 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:20,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 114 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 186 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2024-11-27 20:08:20,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-27 20:08:20,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2024-11-27 20:08:20,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 101 states have internal predecessors, (116), 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 20:08:20,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2024-11-27 20:08:20,373 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 41 [2024-11-27 20:08:20,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:20,374 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2024-11-27 20:08:20,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 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 20:08:20,374 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2024-11-27 20:08:20,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 20:08:20,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:20,377 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:20,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 20:08:20,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:20,581 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:20,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:20,581 INFO L85 PathProgramCache]: Analyzing trace with hash 471172572, now seen corresponding path program 1 times [2024-11-27 20:08:20,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:20,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464542521] [2024-11-27 20:08:20,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:20,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:20,718 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:08:20,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:20,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464542521] [2024-11-27 20:08:20,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464542521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:20,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536015202] [2024-11-27 20:08:20,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:20,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:20,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:20,720 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:20,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:08:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:20,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:08:20,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:08:20,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:08:20,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536015202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:20,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:08:20,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-27 20:08:20,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122270700] [2024-11-27 20:08:20,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:20,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:08:20,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:20,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:08:20,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:08:20,830 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 20:08:20,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:20,859 INFO L93 Difference]: Finished difference Result 110 states and 128 transitions. [2024-11-27 20:08:20,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:08:20,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 51 [2024-11-27 20:08:20,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:20,861 INFO L225 Difference]: With dead ends: 110 [2024-11-27 20:08:20,862 INFO L226 Difference]: Without dead ends: 109 [2024-11-27 20:08:20,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 20:08:20,863 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 19 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:20,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 85 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:08:20,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-27 20:08:20,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-27 20:08:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.2840909090909092) internal successors, (113), 100 states have internal predecessors, (113), 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 20:08:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2024-11-27 20:08:20,877 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 51 [2024-11-27 20:08:20,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:20,878 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2024-11-27 20:08:20,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 20:08:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2024-11-27 20:08:20,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-27 20:08:20,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:20,881 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:20,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 20:08:21,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 20:08:21,082 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:21,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1721447914, now seen corresponding path program 1 times [2024-11-27 20:08:21,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:21,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292511616] [2024-11-27 20:08:21,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:21,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:21,212 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:08:21,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:21,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292511616] [2024-11-27 20:08:21,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292511616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:21,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537907217] [2024-11-27 20:08:21,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:21,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:21,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:21,215 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:21,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:08:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:21,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:08:21,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:21,321 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:08:21,322 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:21,415 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:08:21,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537907217] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:08:21,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:08:21,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-27 20:08:21,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751248989] [2024-11-27 20:08:21,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:21,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:08:21,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:21,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:08:21,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:08:21,419 INFO L87 Difference]: Start difference. First operand 109 states and 125 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-27 20:08:21,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:21,460 INFO L93 Difference]: Finished difference Result 113 states and 125 transitions. [2024-11-27 20:08:21,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:08:21,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 52 [2024-11-27 20:08:21,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:21,462 INFO L225 Difference]: With dead ends: 113 [2024-11-27 20:08:21,462 INFO L226 Difference]: Without dead ends: 112 [2024-11-27 20:08:21,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:08:21,464 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 23 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:21,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 146 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:08:21,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-27 20:08:21,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2024-11-27 20:08:21,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.25) internal successors, (110), 99 states have internal predecessors, (110), 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 20:08:21,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2024-11-27 20:08:21,478 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 52 [2024-11-27 20:08:21,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:21,479 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2024-11-27 20:08:21,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-27 20:08:21,479 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2024-11-27 20:08:21,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-27 20:08:21,481 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:21,481 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:21,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-27 20:08:21,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 20:08:21,685 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:21,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:21,685 INFO L85 PathProgramCache]: Analyzing trace with hash 747776554, now seen corresponding path program 1 times [2024-11-27 20:08:21,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:21,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128344853] [2024-11-27 20:08:21,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:21,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:08:21,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979964211] [2024-11-27 20:08:21,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:21,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:21,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:21,721 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:21,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:08:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:21,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:08:21,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 20:08:22,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:59,555 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 20:08:59,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:59,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128344853] [2024-11-27 20:08:59,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:59,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979964211] [2024-11-27 20:08:59,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979964211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:08:59,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:08:59,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-27 20:08:59,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872898985] [2024-11-27 20:08:59,556 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:59,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:08:59,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:59,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:08:59,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=117, Unknown=2, NotChecked=0, Total=156 [2024-11-27 20:08:59,558 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 13 states have internal predecessors, (77), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 20:09:03,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:09:07,630 WARN L539 Checker$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 20:09:11,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:09:15,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:09:19,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:09:24,091 WARN L539 Checker$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 20:09:28,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:09:32,170 WARN L539 Checker$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 20:09:34,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:09:38,827 WARN L539 Checker$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 20:09:41,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:09:45,301 WARN L539 Checker$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 20:09:49,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:09:54,482 WARN L539 Checker$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 20:09:57,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:10:01,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:10:01,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:01,348 INFO L93 Difference]: Finished difference Result 135 states and 156 transitions. [2024-11-27 20:10:01,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:10:01,349 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 13 states have internal predecessors, (77), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 54 [2024-11-27 20:10:01,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:01,350 INFO L225 Difference]: With dead ends: 135 [2024-11-27 20:10:01,350 INFO L226 Difference]: Without dead ends: 130 [2024-11-27 20:10:01,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=54, Invalid=154, Unknown=2, NotChecked=0, Total=210 [2024-11-27 20:10:01,352 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 158 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 14 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:01,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 134 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 317 Invalid, 14 Unknown, 0 Unchecked, 61.6s Time] [2024-11-27 20:10:01,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-27 20:10:01,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 117. [2024-11-27 20:10:01,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.25) internal successors, (120), 107 states have internal predecessors, (120), 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 20:10:01,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 134 transitions. [2024-11-27 20:10:01,364 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 134 transitions. Word has length 54 [2024-11-27 20:10:01,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:01,364 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 134 transitions. [2024-11-27 20:10:01,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 13 states have internal predecessors, (77), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 20:10:01,365 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 134 transitions. [2024-11-27 20:10:01,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-27 20:10:01,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:01,366 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:01,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:01,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 20:10:01,567 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:10:01,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:01,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1706236789, now seen corresponding path program 1 times [2024-11-27 20:10:01,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:01,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478160622] [2024-11-27 20:10:01,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:01,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:10:01,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525811738] [2024-11-27 20:10:01,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:01,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:01,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:01,597 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:01,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:10:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:01,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:10:01,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:10:07,700 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:17,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:17,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478160622] [2024-11-27 20:10:17,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:17,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525811738] [2024-11-27 20:10:17,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525811738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:17,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:10:17,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 20:10:17,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837830478] [2024-11-27 20:10:17,768 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:17,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:10:17,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:17,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:10:17,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=57, Unknown=1, NotChecked=0, Total=90 [2024-11-27 20:10:17,770 INFO L87 Difference]: Start difference. First operand 117 states and 134 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 20:10:21,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:10:25,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:10:29,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:10:33,933 WARN L539 Checker$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 20:10:34,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:34,591 INFO L93 Difference]: Finished difference Result 117 states and 134 transitions. [2024-11-27 20:10:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:10:34,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 55 [2024-11-27 20:10:34,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:34,593 INFO L225 Difference]: With dead ends: 117 [2024-11-27 20:10:34,593 INFO L226 Difference]: Without dead ends: 111 [2024-11-27 20:10:34,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=32, Invalid=57, Unknown=1, NotChecked=0, Total=90 [2024-11-27 20:10:34,594 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 20 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:34,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 77 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 4 Unknown, 0 Unchecked, 16.8s Time] [2024-11-27 20:10:34,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-27 20:10:34,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-27 20:10:34,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 101 states have internal predecessors, (111), 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 20:10:34,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 125 transitions. [2024-11-27 20:10:34,607 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 125 transitions. Word has length 55 [2024-11-27 20:10:34,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:34,607 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 125 transitions. [2024-11-27 20:10:34,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 20:10:34,607 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 125 transitions. [2024-11-27 20:10:34,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-27 20:10:34,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:34,608 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:34,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 20:10:34,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 20:10:34,809 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:10:34,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:34,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1519092492, now seen corresponding path program 1 times [2024-11-27 20:10:34,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:34,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734337895] [2024-11-27 20:10:34,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:34,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:10:34,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1607826412] [2024-11-27 20:10:34,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:34,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:34,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:34,845 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:34,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:10:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:34,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 20:10:34,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:36,063 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 29 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:10:36,064 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:36,257 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:10:36,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:36,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734337895] [2024-11-27 20:10:36,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:36,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607826412] [2024-11-27 20:10:36,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607826412] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:36,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:10:36,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2024-11-27 20:10:36,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601022550] [2024-11-27 20:10:36,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:36,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:10:36,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:36,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:10:36,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:10:36,260 INFO L87 Difference]: Start difference. First operand 111 states and 125 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 20:10:36,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:36,818 INFO L93 Difference]: Finished difference Result 111 states and 125 transitions. [2024-11-27 20:10:36,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:10:36,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 62 [2024-11-27 20:10:36,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:36,820 INFO L225 Difference]: With dead ends: 111 [2024-11-27 20:10:36,820 INFO L226 Difference]: Without dead ends: 110 [2024-11-27 20:10:36,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:10:36,822 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 14 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:36,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 48 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:10:36,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-27 20:10:36,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-27 20:10:36,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 91 states have (on average 1.1868131868131868) internal successors, (108), 100 states have internal predecessors, (108), 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 20:10:36,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 122 transitions. [2024-11-27 20:10:36,835 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 122 transitions. Word has length 62 [2024-11-27 20:10:36,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:36,835 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 122 transitions. [2024-11-27 20:10:36,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 20:10:36,835 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 122 transitions. [2024-11-27 20:10:36,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-27 20:10:36,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:36,836 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:36,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 20:10:37,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:37,041 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:10:37,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:37,041 INFO L85 PathProgramCache]: Analyzing trace with hash 440997558, now seen corresponding path program 1 times [2024-11-27 20:10:37,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:37,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723987883] [2024-11-27 20:10:37,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:37,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:10:37,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210265926] [2024-11-27 20:10:37,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:37,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:37,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:37,066 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:37,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 20:10:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:37,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 20:10:37,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:37,871 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:10:37,871 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 20:10:38,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:38,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723987883] [2024-11-27 20:10:38,359 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:38,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210265926] [2024-11-27 20:10:38,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210265926] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:38,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:10:38,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2024-11-27 20:10:38,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657487988] [2024-11-27 20:10:38,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:38,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:10:38,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:38,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:10:38,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:10:38,361 INFO L87 Difference]: Start difference. First operand 110 states and 122 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 20:10:39,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:39,487 INFO L93 Difference]: Finished difference Result 110 states and 122 transitions. [2024-11-27 20:10:39,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:10:39,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 64 [2024-11-27 20:10:39,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:39,489 INFO L225 Difference]: With dead ends: 110 [2024-11-27 20:10:39,490 INFO L226 Difference]: Without dead ends: 109 [2024-11-27 20:10:39,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:10:39,492 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 44 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:39,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 77 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:10:39,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-27 20:10:39,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-27 20:10:39,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 91 states have (on average 1.1538461538461537) internal successors, (105), 99 states have internal predecessors, (105), 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 20:10:39,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2024-11-27 20:10:39,517 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 64 [2024-11-27 20:10:39,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:39,518 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2024-11-27 20:10:39,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 20:10:39,518 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2024-11-27 20:10:39,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-27 20:10:39,519 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:39,519 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:39,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-27 20:10:39,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:39,720 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:10:39,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:39,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1403107208, now seen corresponding path program 1 times [2024-11-27 20:10:39,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:39,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505224801] [2024-11-27 20:10:39,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:39,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:10:39,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [132802957] [2024-11-27 20:10:39,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:39,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:39,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:39,744 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:39,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:10:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:39,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 20:10:39,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:40,588 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 37 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:10:40,589 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:41,101 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 20:10:41,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:41,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505224801] [2024-11-27 20:10:41,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:41,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132802957] [2024-11-27 20:10:41,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132802957] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:41,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:10:41,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-11-27 20:10:41,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294980871] [2024-11-27 20:10:41,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:41,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:10:41,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:41,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:10:41,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:10:41,104 INFO L87 Difference]: Start difference. First operand 109 states and 119 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 20:10:43,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:43,605 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2024-11-27 20:10:43,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:10:43,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 66 [2024-11-27 20:10:43,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:43,606 INFO L225 Difference]: With dead ends: 109 [2024-11-27 20:10:43,606 INFO L226 Difference]: Without dead ends: 108 [2024-11-27 20:10:43,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:10:43,608 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 61 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:43,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 77 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 20:10:43,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-27 20:10:43,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-27 20:10:43,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 91 states have (on average 1.120879120879121) internal successors, (102), 98 states have internal predecessors, (102), 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 20:10:43,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 116 transitions. [2024-11-27 20:10:43,623 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 116 transitions. Word has length 66 [2024-11-27 20:10:43,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:43,624 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 116 transitions. [2024-11-27 20:10:43,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 20:10:43,624 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 116 transitions. [2024-11-27 20:10:43,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-27 20:10:43,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:43,625 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:43,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:43,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:43,830 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:10:43,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:43,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2028495508, now seen corresponding path program 1 times [2024-11-27 20:10:43,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:43,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115412309] [2024-11-27 20:10:43,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:43,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:10:43,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743558778] [2024-11-27 20:10:43,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:43,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:43,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:43,857 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:43,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 20:10:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:43,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 20:10:43,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:44,716 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 57 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 20:10:44,716 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:46,715 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 57 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 20:10:46,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:46,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115412309] [2024-11-27 20:10:46,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:46,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743558778] [2024-11-27 20:10:46,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743558778] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:10:46,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:10:46,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-11-27 20:10:46,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318928473] [2024-11-27 20:10:46,716 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:46,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:10:46,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:46,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:10:46,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:10:46,718 INFO L87 Difference]: Start difference. First operand 108 states and 116 transitions. Second operand has 18 states, 17 states have (on average 7.294117647058823) internal successors, (124), 18 states have internal predecessors, (124), 9 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:10:52,561 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 20:10:54,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:54,638 INFO L93 Difference]: Finished difference Result 157 states and 185 transitions. [2024-11-27 20:10:54,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:10:54,639 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.294117647058823) internal successors, (124), 18 states have internal predecessors, (124), 9 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) Word has length 80 [2024-11-27 20:10:54,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:54,641 INFO L225 Difference]: With dead ends: 157 [2024-11-27 20:10:54,641 INFO L226 Difference]: Without dead ends: 156 [2024-11-27 20:10:54,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2024-11-27 20:10:54,644 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 208 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:54,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 235 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 666 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2024-11-27 20:10:54,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-27 20:10:54,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 152. [2024-11-27 20:10:54,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.1804511278195489) internal successors, (157), 140 states have internal predecessors, (157), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:10:54,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 175 transitions. [2024-11-27 20:10:54,666 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 175 transitions. Word has length 80 [2024-11-27 20:10:54,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:54,666 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 175 transitions. [2024-11-27 20:10:54,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.294117647058823) internal successors, (124), 18 states have internal predecessors, (124), 9 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:10:54,666 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 175 transitions. [2024-11-27 20:10:54,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-27 20:10:54,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:54,668 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:54,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-27 20:10:54,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:54,868 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:10:54,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:54,869 INFO L85 PathProgramCache]: Analyzing trace with hash -530967722, now seen corresponding path program 2 times [2024-11-27 20:10:54,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:54,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122711769] [2024-11-27 20:10:54,869 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:10:54,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:54,897 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:10:54,897 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:10:54,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455519607] [2024-11-27 20:10:54,898 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:10:54,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:54,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:54,901 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:54,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 20:10:54,985 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:10:54,985 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:10:54,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:10:54,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 20:10:55,879 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:56,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:56,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122711769] [2024-11-27 20:10:56,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:56,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455519607] [2024-11-27 20:10:56,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455519607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:56,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:10:56,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 20:10:56,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723417748] [2024-11-27 20:10:56,097 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:56,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:10:56,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:56,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:10:56,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:10:56,098 INFO L87 Difference]: Start difference. First operand 152 states and 175 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 9 states have internal predecessors, (66), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 20:10:57,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:57,233 INFO L93 Difference]: Finished difference Result 155 states and 175 transitions. [2024-11-27 20:10:57,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:10:57,234 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 9 states have internal predecessors, (66), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 82 [2024-11-27 20:10:57,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:57,235 INFO L225 Difference]: With dead ends: 155 [2024-11-27 20:10:57,235 INFO L226 Difference]: Without dead ends: 152 [2024-11-27 20:10:57,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:10:57,236 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 33 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:57,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 81 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:10:57,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-27 20:10:57,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-27 20:10:57,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.1578947368421053) internal successors, (154), 140 states have internal predecessors, (154), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:10:57,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 172 transitions. [2024-11-27 20:10:57,257 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 172 transitions. Word has length 82 [2024-11-27 20:10:57,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:57,258 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 172 transitions. [2024-11-27 20:10:57,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 9 states have internal predecessors, (66), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 20:10:57,258 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 172 transitions. [2024-11-27 20:10:57,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 20:10:57,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:57,259 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:57,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-27 20:10:57,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:57,460 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:10:57,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:57,460 INFO L85 PathProgramCache]: Analyzing trace with hash 305194782, now seen corresponding path program 2 times [2024-11-27 20:10:57,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:57,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753427939] [2024-11-27 20:10:57,461 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:10:57,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:57,485 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:10:57,485 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:10:57,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [235470001] [2024-11-27 20:10:57,486 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:10:57,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:57,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:57,491 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:57,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 20:10:57,564 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:10:57,564 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:10:57,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 20:10:57,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 20:10:58,022 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:58,323 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-27 20:10:58,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:58,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753427939] [2024-11-27 20:10:58,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:58,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235470001] [2024-11-27 20:10:58,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235470001] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:58,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:10:58,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-27 20:10:58,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847488811] [2024-11-27 20:10:58,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:58,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:10:58,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:58,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:10:58,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:10:58,325 INFO L87 Difference]: Start difference. First operand 152 states and 172 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 20:11:03,000 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 20:11:04,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:11:05,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:11:05,000 INFO L93 Difference]: Finished difference Result 152 states and 172 transitions. [2024-11-27 20:11:05,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:11:05,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 85 [2024-11-27 20:11:05,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:11:05,002 INFO L225 Difference]: With dead ends: 152 [2024-11-27 20:11:05,002 INFO L226 Difference]: Without dead ends: 151 [2024-11-27 20:11:05,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:11:05,003 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 26 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:11:05,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 94 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2024-11-27 20:11:05,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-27 20:11:05,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-27 20:11:05,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 133 states have (on average 1.1278195488721805) internal successors, (150), 139 states have internal predecessors, (150), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:11:05,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 168 transitions. [2024-11-27 20:11:05,023 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 168 transitions. Word has length 85 [2024-11-27 20:11:05,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:11:05,024 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 168 transitions. [2024-11-27 20:11:05,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 20:11:05,024 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 168 transitions. [2024-11-27 20:11:05,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 20:11:05,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:11:05,026 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:11:05,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-27 20:11:05,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 20:11:05,226 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:11:05,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:05,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1790625670, now seen corresponding path program 3 times [2024-11-27 20:11:05,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:05,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139187668] [2024-11-27 20:11:05,227 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:11:05,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:05,261 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 20:11:05,261 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:11:05,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1596846900] [2024-11-27 20:11:05,262 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:11:05,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:05,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:11:05,266 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:11:05,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 20:11:05,924 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 20:11:05,924 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:11:05,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:11:05,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:11:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 20:11:07,700 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:11:08,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:08,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139187668] [2024-11-27 20:11:08,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:11:08,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596846900] [2024-11-27 20:11:08,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596846900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:11:08,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:11:08,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 20:11:08,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805827678] [2024-11-27 20:11:08,424 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:11:08,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:11:08,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:08,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:11:08,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:11:08,426 INFO L87 Difference]: Start difference. First operand 151 states and 168 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:11:13,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:11:17,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:11:22,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:11:26,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:11:30,938 WARN L539 Checker$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 20:11:34,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:11:38,949 WARN L539 Checker$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 20:11:42,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:11:47,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:11:48,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:11:48,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:11:48,871 INFO L93 Difference]: Finished difference Result 157 states and 171 transitions. [2024-11-27 20:11:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:11:48,872 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 104 [2024-11-27 20:11:48,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:11:48,873 INFO L225 Difference]: With dead ends: 157 [2024-11-27 20:11:48,873 INFO L226 Difference]: Without dead ends: 153 [2024-11-27 20:11:48,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:11:48,874 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 50 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 5 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:11:48,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 158 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 363 Invalid, 8 Unknown, 0 Unchecked, 40.2s Time] [2024-11-27 20:11:48,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-27 20:11:48,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-27 20:11:48,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 135 states have (on average 1.1037037037037036) internal successors, (149), 141 states have internal predecessors, (149), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:11:48,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 167 transitions. [2024-11-27 20:11:48,899 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 167 transitions. Word has length 104 [2024-11-27 20:11:48,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:11:48,900 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 167 transitions. [2024-11-27 20:11:48,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:11:48,900 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 167 transitions. [2024-11-27 20:11:48,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-27 20:11:48,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:11:48,902 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:11:48,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-27 20:11:49,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 20:11:49,102 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:11:49,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:49,103 INFO L85 PathProgramCache]: Analyzing trace with hash 325179128, now seen corresponding path program 2 times [2024-11-27 20:11:49,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:49,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277352641] [2024-11-27 20:11:49,103 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:11:49,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:49,131 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:11:49,131 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:11:49,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1485601400] [2024-11-27 20:11:49,132 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:11:49,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:49,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:11:49,135 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:11:49,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 20:11:49,226 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:11:49,227 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:11:49,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:11:49,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:11:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-27 20:11:49,380 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:11:49,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:49,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277352641] [2024-11-27 20:11:49,380 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:11:49,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485601400] [2024-11-27 20:11:49,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485601400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:11:49,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:11:49,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:11:49,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839064701] [2024-11-27 20:11:49,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:11:49,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:11:49,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:49,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:11:49,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:11:49,384 INFO L87 Difference]: Start difference. First operand 153 states and 167 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 20:11:53,628 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 20:11:53,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:11:53,740 INFO L93 Difference]: Finished difference Result 153 states and 167 transitions. [2024-11-27 20:11:53,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:11:53,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 105 [2024-11-27 20:11:53,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:11:53,742 INFO L225 Difference]: With dead ends: 153 [2024-11-27 20:11:53,743 INFO L226 Difference]: Without dead ends: 152 [2024-11-27 20:11:53,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 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 20:11:53,743 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 14 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:11:53,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 48 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-27 20:11:53,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-27 20:11:53,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-27 20:11:53,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 135 states have (on average 1.0814814814814815) internal successors, (146), 140 states have internal predecessors, (146), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:11:53,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 164 transitions. [2024-11-27 20:11:53,768 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 164 transitions. Word has length 105 [2024-11-27 20:11:53,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:11:53,769 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 164 transitions. [2024-11-27 20:11:53,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 20:11:53,769 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 164 transitions. [2024-11-27 20:11:53,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 20:11:53,770 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:11:53,771 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:11:53,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-27 20:11:53,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 20:11:53,971 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:11:53,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:53,972 INFO L85 PathProgramCache]: Analyzing trace with hash 144628374, now seen corresponding path program 2 times [2024-11-27 20:11:53,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:53,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135711197] [2024-11-27 20:11:53,972 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:11:53,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:54,015 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:11:54,015 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:11:54,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [897675421] [2024-11-27 20:11:54,017 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:11:54,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:54,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:11:54,021 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:11:54,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 20:11:54,149 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:11:54,149 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:11:54,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:11:54,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:11:54,356 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-27 20:11:54,357 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:11:54,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:54,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135711197] [2024-11-27 20:11:54,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:11:54,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897675421] [2024-11-27 20:11:54,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897675421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:11:54,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:11:54,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:11:54,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227442830] [2024-11-27 20:11:54,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:11:54,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:11:54,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:54,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:11:54,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:11:54,359 INFO L87 Difference]: Start difference. First operand 152 states and 164 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 20:11:54,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:11:54,573 INFO L93 Difference]: Finished difference Result 152 states and 164 transitions. [2024-11-27 20:11:54,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:11:54,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 120 [2024-11-27 20:11:54,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:11:54,574 INFO L225 Difference]: With dead ends: 152 [2024-11-27 20:11:54,575 INFO L226 Difference]: Without dead ends: 146 [2024-11-27 20:11:54,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 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 20:11:54,575 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:11:54,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 57 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:11:54,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-27 20:11:54,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-27 20:11:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 131 states have (on average 1.0534351145038168) internal successors, (138), 134 states have internal predecessors, (138), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:11:54,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 156 transitions. [2024-11-27 20:11:54,602 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 156 transitions. Word has length 120 [2024-11-27 20:11:54,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:11:54,603 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 156 transitions. [2024-11-27 20:11:54,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 20:11:54,603 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 156 transitions. [2024-11-27 20:11:54,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-27 20:11:54,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:11:54,604 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:11:54,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-27 20:11:54,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-27 20:11:54,805 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:11:54,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:54,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1844434274, now seen corresponding path program 4 times [2024-11-27 20:11:54,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:54,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8271022] [2024-11-27 20:11:54,806 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:11:54,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:54,839 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:11:54,839 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:11:54,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363950687] [2024-11-27 20:11:54,841 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:11:54,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:54,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:11:54,844 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:11:54,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-27 20:11:54,954 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:11:54,954 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:11:54,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-27 20:11:54,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:11:56,851 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 9 proven. 202 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-27 20:11:56,851 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:11:59,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:59,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8271022] [2024-11-27 20:11:59,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:11:59,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363950687] [2024-11-27 20:11:59,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363950687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:11:59,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:11:59,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-27 20:11:59,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072061474] [2024-11-27 20:11:59,984 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:11:59,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:11:59,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:59,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:11:59,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=574, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:11:59,987 INFO L87 Difference]: Start difference. First operand 146 states and 156 transitions. Second operand has 18 states, 17 states have (on average 6.0588235294117645) internal successors, (103), 18 states have internal predecessors, (103), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 20:12:03,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:03,101 INFO L93 Difference]: Finished difference Result 153 states and 160 transitions. [2024-11-27 20:12:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:12:03,102 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.0588235294117645) internal successors, (103), 18 states have internal predecessors, (103), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Word has length 126 [2024-11-27 20:12:03,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:03,103 INFO L225 Difference]: With dead ends: 153 [2024-11-27 20:12:03,103 INFO L226 Difference]: Without dead ends: 148 [2024-11-27 20:12:03,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 176 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2024-11-27 20:12:03,104 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 65 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:03,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 449 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 20:12:03,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-27 20:12:03,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2024-11-27 20:12:03,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 131 states have (on average 1.0305343511450382) internal successors, (135), 134 states have internal predecessors, (135), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:12:03,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 153 transitions. [2024-11-27 20:12:03,123 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 153 transitions. Word has length 126 [2024-11-27 20:12:03,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:03,123 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 153 transitions. [2024-11-27 20:12:03,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.0588235294117645) internal successors, (103), 18 states have internal predecessors, (103), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 20:12:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 153 transitions. [2024-11-27 20:12:03,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-27 20:12:03,124 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:03,124 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:03,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-27 20:12:03,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 20:12:03,325 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:12:03,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:03,326 INFO L85 PathProgramCache]: Analyzing trace with hash -852284990, now seen corresponding path program 5 times [2024-11-27 20:12:03,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:03,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710428369] [2024-11-27 20:12:03,326 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:12:03,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:03,388 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-27 20:12:03,388 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:12:03,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854255584] [2024-11-27 20:12:03,389 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:12:03,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:12:03,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:03,395 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:12:03,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 20:12:03,510 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-27 20:12:03,511 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:12:03,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:12:03,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:37,256 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 281 refuted. 4 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-27 20:12:37,256 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:12:37,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710428369] [2024-11-27 20:12:37,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:12:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854255584] [2024-11-27 20:12:37,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854255584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:12:37,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:12:37,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 20:12:37,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423054629] [2024-11-27 20:12:37,489 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:12:37,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:12:37,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:37,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:12:37,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=113, Unknown=3, NotChecked=0, Total=182 [2024-11-27 20:12:37,491 INFO L87 Difference]: Start difference. First operand 146 states and 153 transitions. Second operand has 12 states, 11 states have (on average 10.636363636363637) internal successors, (117), 12 states have internal predecessors, (117), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 20:12:45,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:47,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:51,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:53,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:56,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:00,846 WARN L539 Checker$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 20:13:04,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:08,884 WARN L539 Checker$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 20:13:12,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:49,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:53,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:57,112 WARN L539 Checker$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 20:13:58,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:02,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:07,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:12,214 WARN L539 Checker$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 20:14:16,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:21,830 WARN L539 Checker$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 20:14:25,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:26,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:30,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:34,938 WARN L539 Checker$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 20:14:39,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:44,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:47,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:51,984 WARN L539 Checker$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 20:14:55,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:00,442 WARN L539 Checker$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 20:15:04,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:09,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:13,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:17,636 WARN L539 Checker$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 20:15:21,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:26,297 WARN L539 Checker$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 20:15:30,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:35,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:39,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:44,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:47,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:52,663 WARN L539 Checker$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 20:15:56,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:02,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:04,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:08,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:12,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:17,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:21,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:26,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:30,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:34,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:38,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:42,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:46,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:51,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:55,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:59,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:03,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:07,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:11,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:16,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:20,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:24,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:28,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:32,527 WARN L539 Checker$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 20:17:36,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:41,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:46,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:50,337 WARN L539 Checker$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 20:17:54,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:59,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:18:00,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:00,764 INFO L93 Difference]: Finished difference Result 167 states and 175 transitions. [2024-11-27 20:18:00,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:18:00,764 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.636363636363637) internal successors, (117), 12 states have internal predecessors, (117), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 148 [2024-11-27 20:18:00,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:00,766 INFO L225 Difference]: With dead ends: 167 [2024-11-27 20:18:00,766 INFO L226 Difference]: Without dead ends: 162 [2024-11-27 20:18:00,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 70.9s TimeCoverageRelationStatistics Valid=87, Invalid=142, Unknown=11, NotChecked=0, Total=240 [2024-11-27 20:18:00,767 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 57 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 3 mSolverCounterUnsat, 59 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 279.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 59 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 282.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:00,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 107 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 225 Invalid, 59 Unknown, 0 Unchecked, 282.7s Time] [2024-11-27 20:18:00,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-27 20:18:00,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-11-27 20:18:00,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 146 states have (on average 1.0273972602739727) internal successors, (150), 149 states have internal predecessors, (150), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:18:00,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 170 transitions. [2024-11-27 20:18:00,801 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 170 transitions. Word has length 148 [2024-11-27 20:18:00,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:00,802 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 170 transitions. [2024-11-27 20:18:00,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.636363636363637) internal successors, (117), 12 states have internal predecessors, (117), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 20:18:00,802 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 170 transitions. [2024-11-27 20:18:00,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-27 20:18:00,804 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:00,804 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:18:00,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-27 20:18:01,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 20:18:01,011 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:18:01,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:01,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2145134884, now seen corresponding path program 2 times [2024-11-27 20:18:01,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:01,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905645777] [2024-11-27 20:18:01,012 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:18:01,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:01,101 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:18:01,105 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:18:01,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661016760] [2024-11-27 20:18:01,107 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:18:01,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:18:01,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:18:01,113 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:18:01,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-27 20:18:01,285 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:18:01,285 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:18:01,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 20:18:01,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:02,916 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 24 proven. 382 refuted. 11 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-27 20:19:02,917 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:19:06,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:06,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905645777] [2024-11-27 20:19:06,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:19:06,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661016760] [2024-11-27 20:19:06,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661016760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:19:06,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:19:06,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-27 20:19:06,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902905082] [2024-11-27 20:19:06,025 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:19:06,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:19:06,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:06,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:19:06,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=402, Unknown=11, NotChecked=0, Total=552 [2024-11-27 20:19:06,027 INFO L87 Difference]: Start difference. First operand 162 states and 170 transitions. Second operand has 18 states, 17 states have (on average 7.9411764705882355) internal successors, (135), 18 states have internal predecessors, (135), 9 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:19:09,795 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-27 20:19:09,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-11-27 20:19:09,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 60.7s TimeCoverageRelationStatistics Valid=161, Invalid=478, Unknown=11, NotChecked=0, Total=650 [2024-11-27 20:19:09,797 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:09,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 78 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:19:09,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-27 20:19:09,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:09,998 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:388) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:447) at java.base/java.io.OutputStream.write(OutputStream.java:167) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125) at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412) at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262) at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2024-11-27 20:19:10,005 INFO L158 Benchmark]: Toolchain (without parser) took 672503.73ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 100.7MB in the beginning and 262.2MB in the end (delta: -161.4MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2024-11-27 20:19:10,005 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:19:10,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.47ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 89.7MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:19:10,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.65ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 87.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:19:10,006 INFO L158 Benchmark]: Boogie Preprocessor took 81.38ms. Allocated memory is still 142.6MB. Free memory was 87.9MB in the beginning and 86.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:19:10,006 INFO L158 Benchmark]: RCFGBuilder took 572.04ms. Allocated memory is still 142.6MB. Free memory was 86.6MB in the beginning and 71.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:19:10,006 INFO L158 Benchmark]: TraceAbstraction took 671493.51ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 70.5MB in the beginning and 262.2MB in the end (delta: -191.6MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2024-11-27 20:19:10,008 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.47ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 89.7MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.65ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 87.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 81.38ms. Allocated memory is still 142.6MB. Free memory was 87.9MB in the beginning and 86.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 572.04ms. Allocated memory is still 142.6MB. Free memory was 86.6MB in the beginning and 71.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 671493.51ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 70.5MB in the beginning and 262.2MB in the end (delta: -191.6MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/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_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/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 f5913f104892d2161c7fca45f1b4b94f25718ce08a5c1f24a1d3fced8b0f4ce5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:19:13,014 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:19:13,149 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-11-27 20:19:13,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:19:13,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:19:13,225 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:19:13,226 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:19:13,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:19:13,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:19:13,227 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:19:13,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:19:13,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:19:13,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:19:13,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:19:13,228 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:19:13,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:19:13,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:19:13,229 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:19:13,229 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:19:13,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:19:13,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:19:13,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:19:13,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:19:13,230 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:19:13,230 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 20:19:13,230 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:19:13,230 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 20:19:13,230 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:19:13,231 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:19:13,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:19:13,231 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:19:13,231 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:19:13,231 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:19:13,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:19:13,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:19:13,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:19:13,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:19:13,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:19:13,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:19:13,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:19:13,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:19:13,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:19:13,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:19:13,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:19:13,234 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:19:13,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:19:13,234 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 20:19:13,234 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 20:19:13,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:19:13,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:19:13,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:19:13,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:19:13,235 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_367f4492-b942-45b5-a219-1a1172b156c2/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 -> f5913f104892d2161c7fca45f1b4b94f25718ce08a5c1f24a1d3fced8b0f4ce5 [2024-11-27 20:19:13,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:19:13,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:19:13,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:19:13,651 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:19:13,652 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:19:13,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.c [2024-11-27 20:19:17,388 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/data/7fe04c4a4/4d1fe2671e9f48ee9af56ba376c02cc2/FLAG296425e73 [2024-11-27 20:19:17,808 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:19:17,808 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound10.c [2024-11-27 20:19:17,825 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/data/7fe04c4a4/4d1fe2671e9f48ee9af56ba376c02cc2/FLAG296425e73 [2024-11-27 20:19:17,854 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/data/7fe04c4a4/4d1fe2671e9f48ee9af56ba376c02cc2 [2024-11-27 20:19:17,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:19:17,862 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:19:17,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:19:17,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:19:17,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:19:17,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:19:17" (1/1) ... [2024-11-27 20:19:17,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6411ac73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:17, skipping insertion in model container [2024-11-27 20:19:17,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:19:17" (1/1) ... [2024-11-27 20:19:17,894 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:19:18,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:19:18,144 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:19:18,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:19:18,220 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:19:18,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18 WrapperNode [2024-11-27 20:19:18,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:19:18,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:19:18,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:19:18,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:19:18,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,293 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2024-11-27 20:19:18,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:19:18,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:19:18,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:19:18,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:19:18,311 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,339 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 20:19:18,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,351 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,356 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:19:18,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:19:18,378 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:19:18,378 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:19:18,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (1/1) ... [2024-11-27 20:19:18,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:19:18,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:18,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:19:18,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:19:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:19:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 20:19:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:19:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:19:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:19:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:19:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:19:18,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:19:18,537 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:19:18,539 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:19:26,224 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-27 20:19:26,226 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:19:26,248 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:19:26,250 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:19:26,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:19:26 BoogieIcfgContainer [2024-11-27 20:19:26,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:19:26,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:19:26,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:19:26,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:19:26,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:19:17" (1/3) ... [2024-11-27 20:19:26,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44955ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:19:26, skipping insertion in model container [2024-11-27 20:19:26,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:19:18" (2/3) ... [2024-11-27 20:19:26,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44955ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:19:26, skipping insertion in model container [2024-11-27 20:19:26,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:19:26" (3/3) ... [2024-11-27 20:19:26,274 INFO L128 eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound10.c [2024-11-27 20:19:26,308 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:19:26,312 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG geo1-u_valuebound10.c that has 3 procedures, 67 locations, 1 initial locations, 1 loop locations, and 22 error locations. [2024-11-27 20:19:26,396 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:19:26,417 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;@1ad621ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:19:26,417 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-27 20:19:26,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 38 states have (on average 1.7105263157894737) internal successors, (65), 60 states have internal predecessors, (65), 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 20:19:26,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 20:19:26,435 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:26,436 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:26,437 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:19:26,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:26,445 INFO L85 PathProgramCache]: Analyzing trace with hash 979589762, now seen corresponding path program 1 times [2024-11-27 20:19:26,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:19:26,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51760804] [2024-11-27 20:19:26,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:26,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:26,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:26,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:19:26,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:19:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:26,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:19:26,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:19:26,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:19:26,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:19:26,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51760804] [2024-11-27 20:19:26,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51760804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:26,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:26,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:19:26,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713215015] [2024-11-27 20:19:26,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:26,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:19:26,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:19:26,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:19:26,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:19:26,729 INFO L87 Difference]: Start difference. First operand has 67 states, 38 states have (on average 1.7105263157894737) internal successors, (65), 60 states have internal predecessors, (65), 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) 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:19:26,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:26,764 INFO L93 Difference]: Finished difference Result 126 states and 145 transitions. [2024-11-27 20:19:26,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:19:26,767 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-27 20:19:26,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:26,779 INFO L225 Difference]: With dead ends: 126 [2024-11-27 20:19:26,780 INFO L226 Difference]: Without dead ends: 56 [2024-11-27 20:19:26,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 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 20:19:26,790 INFO L435 NwaCegarLoop]: 64 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, 64 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 20:19:26,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:19:26,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-27 20:19:26,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-27 20:19:26,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 50 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:19:26,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2024-11-27 20:19:26,843 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 15 [2024-11-27 20:19:26,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:26,844 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2024-11-27 20:19:26,844 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:19:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2024-11-27 20:19:26,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 20:19:26,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:26,846 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:26,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:19:27,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:27,051 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:19:27,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:27,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1682501382, now seen corresponding path program 1 times [2024-11-27 20:19:27,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:19:27,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422353307] [2024-11-27 20:19:27,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:27,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:27,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:27,055 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:19:27,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:19:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:27,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:19:27,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:27,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:19:27,219 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:19:27,219 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:19:27,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422353307] [2024-11-27 20:19:27,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422353307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:27,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:27,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:19:27,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168937245] [2024-11-27 20:19:27,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:27,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:27,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:19:27,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:27,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:27,224 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:19:31,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:19:32,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:32,766 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2024-11-27 20:19:32,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:32,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-27 20:19:32,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:32,773 INFO L225 Difference]: With dead ends: 85 [2024-11-27 20:19:32,773 INFO L226 Difference]: Without dead ends: 75 [2024-11-27 20:19:32,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:32,774 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 17 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:32,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 64 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-27 20:19:32,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-27 20:19:32,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2024-11-27 20:19:32,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 50 states have (on average 1.44) internal successors, (72), 67 states have internal predecessors, (72), 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 20:19:32,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2024-11-27 20:19:32,787 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 15 [2024-11-27 20:19:32,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:32,788 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2024-11-27 20:19:32,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:19:32,789 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2024-11-27 20:19:32,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-27 20:19:32,790 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:32,790 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:32,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:19:32,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:32,991 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:19:32,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:32,991 INFO L85 PathProgramCache]: Analyzing trace with hash -336760466, now seen corresponding path program 1 times [2024-11-27 20:19:32,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:19:32,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48765258] [2024-11-27 20:19:32,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:32,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:32,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:32,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:19:32,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:19:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:33,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:19:33,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:33,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:19:33,352 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:19:33,352 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:19:33,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48765258] [2024-11-27 20:19:33,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48765258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:33,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:33,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:19:33,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755976015] [2024-11-27 20:19:33,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:33,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:33,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:19:33,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:33,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:33,355 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:19:36,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:19:40,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:19:43,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:43,045 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2024-11-27 20:19:43,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:43,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-27 20:19:43,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:43,052 INFO L225 Difference]: With dead ends: 77 [2024-11-27 20:19:43,052 INFO L226 Difference]: Without dead ends: 75 [2024-11-27 20:19:43,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:43,054 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 12 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:43,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 62 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-27 20:19:43,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-27 20:19:43,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2024-11-27 20:19:43,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 50 states have (on average 1.4) internal successors, (70), 67 states have internal predecessors, (70), 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 20:19:43,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2024-11-27 20:19:43,072 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 20 [2024-11-27 20:19:43,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:43,072 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2024-11-27 20:19:43,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:19:43,073 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2024-11-27 20:19:43,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-27 20:19:43,074 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:43,074 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:43,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:19:43,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:43,275 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:19:43,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash -104364346, now seen corresponding path program 1 times [2024-11-27 20:19:43,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:19:43,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [591912892] [2024-11-27 20:19:43,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:43,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:43,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:43,281 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:19:43,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:19:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:43,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:19:43,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:43,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:19:43,558 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:19:43,558 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:19:43,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591912892] [2024-11-27 20:19:43,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591912892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:43,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:43,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:19:43,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612781419] [2024-11-27 20:19:43,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:43,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:43,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:19:43,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:43,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:43,561 INFO L87 Difference]: Start difference. First operand 74 states and 78 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:19:43,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:43,614 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2024-11-27 20:19:43,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:43,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-11-27 20:19:43,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:43,616 INFO L225 Difference]: With dead ends: 75 [2024-11-27 20:19:43,617 INFO L226 Difference]: Without dead ends: 74 [2024-11-27 20:19:43,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:43,618 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:43,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:19:43,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-27 20:19:43,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-27 20:19:43,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 50 states have (on average 1.38) internal successors, (69), 67 states have internal predecessors, (69), 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 20:19:43,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2024-11-27 20:19:43,627 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 30 [2024-11-27 20:19:43,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:43,628 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2024-11-27 20:19:43,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:19:43,628 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2024-11-27 20:19:43,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 20:19:43,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:43,629 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:43,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:19:43,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:43,830 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:19:43,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:43,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1511148538, now seen corresponding path program 1 times [2024-11-27 20:19:43,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:19:43,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [362345607] [2024-11-27 20:19:43,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:43,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:43,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:43,835 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:19:43,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:19:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:44,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:19:44,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:44,223 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:19:44,224 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:19:44,224 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:19:44,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362345607] [2024-11-27 20:19:44,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362345607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:44,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:44,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:44,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184483548] [2024-11-27 20:19:44,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:44,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:19:44,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:19:44,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:19:44,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:19:44,226 INFO L87 Difference]: Start difference. First operand 74 states and 77 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:19:48,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:48,707 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2024-11-27 20:19:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:19:48,713 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-11-27 20:19:48,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:48,714 INFO L225 Difference]: With dead ends: 80 [2024-11-27 20:19:48,714 INFO L226 Difference]: Without dead ends: 78 [2024-11-27 20:19:48,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 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 20:19:48,715 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 14 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:48,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 62 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-27 20:19:48,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-27 20:19:48,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 77. [2024-11-27 20:19:48,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 70 states have internal predecessors, (72), 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 20:19:48,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2024-11-27 20:19:48,725 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 32 [2024-11-27 20:19:48,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:48,726 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2024-11-27 20:19:48,726 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:19:48,726 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2024-11-27 20:19:48,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-27 20:19:48,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:48,728 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:48,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:19:48,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:48,929 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:19:48,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:48,929 INFO L85 PathProgramCache]: Analyzing trace with hash -514795928, now seen corresponding path program 1 times [2024-11-27 20:19:48,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:19:48,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [992152213] [2024-11-27 20:19:48,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:48,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:48,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:48,933 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:19:48,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:19:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:49,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:19:49,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:49,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:19:49,664 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:19:49,664 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:19:49,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992152213] [2024-11-27 20:19:49,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992152213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:49,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:49,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:49,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621061637] [2024-11-27 20:19:49,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:49,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:19:49,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:19:49,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:19:49,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:19:49,666 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:19:52,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:19:57,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:57,064 INFO L93 Difference]: Finished difference Result 79 states and 81 transitions. [2024-11-27 20:19:57,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:19:57,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-11-27 20:19:57,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:57,071 INFO L225 Difference]: With dead ends: 79 [2024-11-27 20:19:57,071 INFO L226 Difference]: Without dead ends: 72 [2024-11-27 20:19:57,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:19:57,073 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 6 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:57,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 77 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-11-27 20:19:57,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-27 20:19:57,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-27 20:19:57,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 48 states have (on average 1.375) internal successors, (66), 65 states have internal predecessors, (66), 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 20:19:57,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2024-11-27 20:19:57,086 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 34 [2024-11-27 20:19:57,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:57,086 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2024-11-27 20:19:57,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:19:57,087 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2024-11-27 20:19:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-27 20:19:57,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:57,088 INFO L218 NwaCegarLoop]: trace histogram [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 20:19:57,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:19:57,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:57,289 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:19:57,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:57,290 INFO L85 PathProgramCache]: Analyzing trace with hash 167062470, now seen corresponding path program 1 times [2024-11-27 20:19:57,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:19:57,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1764355387] [2024-11-27 20:19:57,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:57,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:57,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:57,293 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:19:57,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:19:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:57,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:19:57,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:57,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:19:57,663 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:19:57,664 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:19:57,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764355387] [2024-11-27 20:19:57,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764355387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:57,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:57,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:19:57,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385502009] [2024-11-27 20:19:57,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:57,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:57,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:19:57,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:57,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:57,665 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:20:04,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:04,207 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2024-11-27 20:20:04,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:20:04,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-11-27 20:20:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:04,222 INFO L225 Difference]: With dead ends: 75 [2024-11-27 20:20:04,222 INFO L226 Difference]: Without dead ends: 74 [2024-11-27 20:20:04,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:20:04,223 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:04,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 64 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-27 20:20:04,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-27 20:20:04,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2024-11-27 20:20:04,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 66 states have internal predecessors, (67), 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 20:20:04,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2024-11-27 20:20:04,232 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 35 [2024-11-27 20:20:04,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:20:04,233 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2024-11-27 20:20:04,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:20:04,233 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2024-11-27 20:20:04,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-27 20:20:04,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:20:04,234 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:20:04,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:20:04,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:04,435 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:20:04,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:20:04,436 INFO L85 PathProgramCache]: Analyzing trace with hash 883969356, now seen corresponding path program 1 times [2024-11-27 20:20:04,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:20:04,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1028784455] [2024-11-27 20:20:04,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:20:04,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:20:04,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:20:04,440 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:20:04,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:20:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:20:04,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:20:04,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:20:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:20:05,135 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:20:29,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:20:29,492 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:20:29,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028784455] [2024-11-27 20:20:29,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028784455] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:20:29,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:20:29,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 20:20:29,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058246857] [2024-11-27 20:20:29,492 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:20:29,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:20:29,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:20:29,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:20:29,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:20:29,494 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:20:37,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:20:39,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:20:43,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:20:51,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:20:55,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:20:59,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:01,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:06,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:11,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:21:11,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:21:11,713 INFO L93 Difference]: Finished difference Result 96 states and 114 transitions. [2024-11-27 20:21:11,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:21:11,726 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 36 [2024-11-27 20:21:11,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:21:11,727 INFO L225 Difference]: With dead ends: 96 [2024-11-27 20:21:11,727 INFO L226 Difference]: Without dead ends: 95 [2024-11-27 20:21:11,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:21:11,728 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 85 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:21:11,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 100 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 40.1s Time] [2024-11-27 20:21:11,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-27 20:21:11,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2024-11-27 20:21:11,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.462686567164179) internal successors, (98), 84 states have internal predecessors, (98), 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 20:21:11,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 108 transitions. [2024-11-27 20:21:11,741 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 108 transitions. Word has length 36 [2024-11-27 20:21:11,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:21:11,741 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 108 transitions. [2024-11-27 20:21:11,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:21:11,742 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 108 transitions. [2024-11-27 20:21:11,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-27 20:21:11,743 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:21:11,743 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:21:11,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:21:11,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:21:11,944 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:21:11,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:11,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1633246306, now seen corresponding path program 1 times [2024-11-27 20:21:11,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:21:11,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1171333688] [2024-11-27 20:21:11,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:11,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:21:11,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:21:11,948 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:21:11,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:21:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:12,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:21:12,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:21:13,197 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:21:13,197 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:21:42,853 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:21:42,853 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:21:42,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171333688] [2024-11-27 20:21:42,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171333688] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:21:42,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:21:42,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2024-11-27 20:21:42,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327380062] [2024-11-27 20:21:42,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:21:42,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:21:42,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:21:42,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:21:42,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:21:42,856 INFO L87 Difference]: Start difference. First operand 92 states and 108 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-27 20:22:00,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:07,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:08,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:09,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:12,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:14,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:23,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 20:22:28,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:28,562 INFO L93 Difference]: Finished difference Result 130 states and 157 transitions. [2024-11-27 20:22:28,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:22:28,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 37 [2024-11-27 20:22:28,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:28,577 INFO L225 Difference]: With dead ends: 130 [2024-11-27 20:22:28,577 INFO L226 Difference]: Without dead ends: 120 [2024-11-27 20:22:28,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:22:28,578 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 123 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:28,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 106 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 41.2s Time] [2024-11-27 20:22:28,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-27 20:22:28,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 112. [2024-11-27 20:22:28,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 87 states have (on average 1.3908045977011494) internal successors, (121), 103 states have internal predecessors, (121), 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 20:22:28,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 133 transitions. [2024-11-27 20:22:28,591 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 133 transitions. Word has length 37 [2024-11-27 20:22:28,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:28,591 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 133 transitions. [2024-11-27 20:22:28,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-27 20:22:28,591 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 133 transitions. [2024-11-27 20:22:28,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 20:22:28,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:28,593 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:28,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 20:22:28,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:28,794 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:22:28,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:28,794 INFO L85 PathProgramCache]: Analyzing trace with hash 907476370, now seen corresponding path program 1 times [2024-11-27 20:22:28,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:22:28,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137836907] [2024-11-27 20:22:28,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:28,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:28,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:28,797 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:28,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:22:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:29,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:22:29,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:30,675 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:22:30,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:22:40,722 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:22:40,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137836907] [2024-11-27 20:22:40,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137836907] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:40,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1256916281] [2024-11-27 20:22:40,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:40,723 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:22:40,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:22:40,730 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:22:40,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4492-b942-45b5-a219-1a1172b156c2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-27 20:22:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:41,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:22:41,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:22:44,483 INFO L312 TraceCheckSpWp]: Computing backward predicates...