./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/standard_find_ground-1.i --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_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/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_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/standard_find_ground-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/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_01fb59c1-5464-4564-8294-80f7589d3132/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 104899a801011b0e3641a72d1ef00a1787a9f1724318580031d49da34b73c0d4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:24:44,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:24:45,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:24:45,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:24:45,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:24:45,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:24:45,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:24:45,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:24:45,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:24:45,061 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:24:45,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:24:45,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:24:45,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:24:45,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:24:45,064 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:24:45,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:24:45,064 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:24:45,064 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:24:45,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:24:45,065 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:24:45,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:24:45,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:24:45,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:24:45,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:24:45,067 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:24:45,067 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:24:45,067 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:24:45,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:24:45,067 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:24:45,067 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:24:45,068 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:24:45,068 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:24:45,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:24:45,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:24:45,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:24:45,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:24:45,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:24:45,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:24:45,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:24:45,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:24:45,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:24:45,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:24:45,071 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:24:45,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:24:45,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:24:45,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:24:45,071 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:24:45,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:24:45,072 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:24:45,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:24:45,072 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_01fb59c1-5464-4564-8294-80f7589d3132/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 -> 104899a801011b0e3641a72d1ef00a1787a9f1724318580031d49da34b73c0d4 [2024-11-27 20:24:45,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:24:45,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:24:45,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:24:45,497 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:24:45,497 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:24:45,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/array-examples/standard_find_ground-1.i [2024-11-27 20:24:49,115 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/data/b1a9fe5ff/78c3d786a18a4c90bd1f32f6f0088434/FLAG4078bc66f [2024-11-27 20:24:49,506 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:24:49,507 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/sv-benchmarks/c/array-examples/standard_find_ground-1.i [2024-11-27 20:24:49,514 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/data/b1a9fe5ff/78c3d786a18a4c90bd1f32f6f0088434/FLAG4078bc66f [2024-11-27 20:24:49,534 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/data/b1a9fe5ff/78c3d786a18a4c90bd1f32f6f0088434 [2024-11-27 20:24:49,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:24:49,538 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:24:49,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:24:49,540 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:24:49,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:24:49,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75bfa5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49, skipping insertion in model container [2024-11-27 20:24:49,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:24:49,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:24:49,773 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:24:49,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:24:49,822 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:24:49,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49 WrapperNode [2024-11-27 20:24:49,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:24:49,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:24:49,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:24:49,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:24:49,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,856 INFO L138 Inliner]: procedures = 16, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-11-27 20:24:49,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:24:49,858 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:24:49,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:24:49,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:24:49,868 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,870 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,884 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-27 20:24:49,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,890 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:24:49,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:24:49,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:24:49,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:24:49,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (1/1) ... [2024-11-27 20:24:49,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:24:49,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:49,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:24:49,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:24:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:24:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:24:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:24:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:24:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:24:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:24:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:24:50,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:24:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:24:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:24:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:24:50,101 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:24:50,104 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:24:50,318 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-27 20:24:50,318 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:24:50,336 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:24:50,338 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-27 20:24:50,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:24:50 BoogieIcfgContainer [2024-11-27 20:24:50,339 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:24:50,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:24:50,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:24:50,349 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:24:50,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:24:49" (1/3) ... [2024-11-27 20:24:50,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d636312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:24:50, skipping insertion in model container [2024-11-27 20:24:50,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:49" (2/3) ... [2024-11-27 20:24:50,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d636312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:24:50, skipping insertion in model container [2024-11-27 20:24:50,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:24:50" (3/3) ... [2024-11-27 20:24:50,353 INFO L128 eAbstractionObserver]: Analyzing ICFG standard_find_ground-1.i [2024-11-27 20:24:50,372 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:24:50,374 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG standard_find_ground-1.i that has 1 procedures, 31 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2024-11-27 20:24:50,450 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:24:50,473 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;@2541f235, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:24:50,474 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-27 20:24:50,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 24 states have (on average 1.625) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:50,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 20:24:50,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:50,487 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 20:24:50,488 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:24:50,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:50,495 INFO L85 PathProgramCache]: Analyzing trace with hash 28696806, now seen corresponding path program 1 times [2024-11-27 20:24:50,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:50,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612237967] [2024-11-27 20:24:50,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:50,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:50,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:50,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:50,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612237967] [2024-11-27 20:24:50,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612237967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:50,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:50,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:50,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888091764] [2024-11-27 20:24:50,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:50,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:50,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:50,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:50,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:50,856 INFO L87 Difference]: Start difference. First operand has 31 states, 24 states have (on average 1.625) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:50,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:50,948 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2024-11-27 20:24:50,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:50,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-27 20:24:50,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:50,959 INFO L225 Difference]: With dead ends: 59 [2024-11-27 20:24:50,960 INFO L226 Difference]: Without dead ends: 28 [2024-11-27 20:24:50,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 20:24:50,967 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:50,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 80 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:24:50,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-27 20:24:51,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-27 20:24:51,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:51,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2024-11-27 20:24:51,018 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 5 [2024-11-27 20:24:51,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:51,019 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2024-11-27 20:24:51,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:51,020 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2024-11-27 20:24:51,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 20:24:51,020 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:51,020 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:24:51,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:24:51,021 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:24:51,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:51,023 INFO L85 PathProgramCache]: Analyzing trace with hash -2138801440, now seen corresponding path program 1 times [2024-11-27 20:24:51,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:51,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281931541] [2024-11-27 20:24:51,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:51,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:51,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:51,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:51,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281931541] [2024-11-27 20:24:51,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281931541] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:51,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485603036] [2024-11-27 20:24:51,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:51,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:51,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:51,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:51,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:24:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:51,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:24:51,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:51,408 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:51,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485603036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:51,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:51,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-27 20:24:51,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004005190] [2024-11-27 20:24:51,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:51,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:24:51,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:51,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:24:51,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:24:51,411 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:51,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:51,470 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2024-11-27 20:24:51,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:24:51,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 20:24:51,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:51,471 INFO L225 Difference]: With dead ends: 28 [2024-11-27 20:24:51,471 INFO L226 Difference]: Without dead ends: 27 [2024-11-27 20:24:51,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:24:51,473 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 1 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:51,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 77 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:24:51,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-27 20:24:51,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-27 20:24:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:51,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2024-11-27 20:24:51,484 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 9 [2024-11-27 20:24:51,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:51,485 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2024-11-27 20:24:51,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:51,485 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2024-11-27 20:24:51,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 20:24:51,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:51,486 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2024-11-27 20:24:51,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:24:51,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:51,687 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:24:51,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:51,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1878335154, now seen corresponding path program 1 times [2024-11-27 20:24:51,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:51,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111945411] [2024-11-27 20:24:51,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:51,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:51,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:24:51,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:51,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111945411] [2024-11-27 20:24:51,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111945411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:51,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:51,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:51,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456142884] [2024-11-27 20:24:51,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:51,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:51,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:51,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:51,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:51,810 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:51,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:51,836 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2024-11-27 20:24:51,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:51,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-27 20:24:51,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:51,837 INFO L225 Difference]: With dead ends: 27 [2024-11-27 20:24:51,837 INFO L226 Difference]: Without dead ends: 26 [2024-11-27 20:24:51,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 20:24:51,839 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 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 20:24:51,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:24:51,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-27 20:24:51,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2024-11-27 20:24:51,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.368421052631579) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:51,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2024-11-27 20:24:51,844 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 10 [2024-11-27 20:24:51,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:51,844 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2024-11-27 20:24:51,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2024-11-27 20:24:51,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-27 20:24:51,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:51,845 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:51,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:24:51,846 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:24:51,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:51,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1903308424, now seen corresponding path program 1 times [2024-11-27 20:24:51,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:51,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402141403] [2024-11-27 20:24:51,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:51,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:51,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:51,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402141403] [2024-11-27 20:24:51,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402141403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:51,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598579430] [2024-11-27 20:24:51,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:51,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:51,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:52,007 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:52,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:24:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:52,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:24:52,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:52,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:24:52,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:52,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598579430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:52,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:52,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-27 20:24:52,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432936779] [2024-11-27 20:24:52,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:52,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:52,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:52,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:52,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:52,134 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:52,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:52,160 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2024-11-27 20:24:52,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:52,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-27 20:24:52,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:52,163 INFO L225 Difference]: With dead ends: 23 [2024-11-27 20:24:52,163 INFO L226 Difference]: Without dead ends: 22 [2024-11-27 20:24:52,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:52,165 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:52,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 19 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:24:52,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-27 20:24:52,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-27 20:24:52,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:52,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-11-27 20:24:52,176 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 11 [2024-11-27 20:24:52,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:52,177 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-11-27 20:24:52,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:52,177 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-27 20:24:52,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-27 20:24:52,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:52,177 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:52,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:52,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:52,378 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:24:52,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:52,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1126980932, now seen corresponding path program 1 times [2024-11-27 20:24:52,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:52,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302963066] [2024-11-27 20:24:52,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:52,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:52,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:52,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:52,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302963066] [2024-11-27 20:24:52,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302963066] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:52,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835896871] [2024-11-27 20:24:52,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:52,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:52,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:52,506 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:52,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:24:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:52,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:24:52,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:52,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:24:52,630 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:52,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835896871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:52,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:52,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-27 20:24:52,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305772750] [2024-11-27 20:24:52,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:52,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:52,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:52,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:52,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:52,632 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:52,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:52,675 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2024-11-27 20:24:52,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:52,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-27 20:24:52,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:52,678 INFO L225 Difference]: With dead ends: 37 [2024-11-27 20:24:52,678 INFO L226 Difference]: Without dead ends: 36 [2024-11-27 20:24:52,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:52,679 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:52,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 31 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:24:52,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-27 20:24:52,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2024-11-27 20:24:52,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:52,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2024-11-27 20:24:52,693 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 12 [2024-11-27 20:24:52,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:52,694 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2024-11-27 20:24:52,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:52,694 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2024-11-27 20:24:52,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-27 20:24:52,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:52,695 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:52,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:24:52,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:52,899 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:24:52,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:52,901 INFO L85 PathProgramCache]: Analyzing trace with hash -2058808046, now seen corresponding path program 1 times [2024-11-27 20:24:52,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:52,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121594003] [2024-11-27 20:24:52,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:52,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:53,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:53,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121594003] [2024-11-27 20:24:53,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121594003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:53,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933313206] [2024-11-27 20:24:53,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:53,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:53,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:53,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:53,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:24:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:53,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:24:53,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:53,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:53,148 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:53,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:53,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933313206] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:53,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:53,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-27 20:24:53,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949188237] [2024-11-27 20:24:53,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:53,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:24:53,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:53,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:24:53,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:24:53,225 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:53,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:53,288 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2024-11-27 20:24:53,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:24:53,291 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-27 20:24:53,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:53,292 INFO L225 Difference]: With dead ends: 55 [2024-11-27 20:24:53,292 INFO L226 Difference]: Without dead ends: 35 [2024-11-27 20:24:53,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:24:53,294 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:53,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 75 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:24:53,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-27 20:24:53,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-27 20:24:53,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.25) internal successors, (40), 34 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:53,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2024-11-27 20:24:53,306 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 16 [2024-11-27 20:24:53,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:53,306 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2024-11-27 20:24:53,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:53,306 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2024-11-27 20:24:53,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-27 20:24:53,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:53,307 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:53,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:24:53,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:53,510 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:24:53,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:53,511 INFO L85 PathProgramCache]: Analyzing trace with hash -896840290, now seen corresponding path program 2 times [2024-11-27 20:24:53,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:53,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425218446] [2024-11-27 20:24:53,511 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:53,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:53,527 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:24:53,527 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:53,576 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 20:24:53,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:53,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425218446] [2024-11-27 20:24:53,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425218446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:53,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:53,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:24:53,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329762729] [2024-11-27 20:24:53,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:53,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:53,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:53,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:53,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:53,578 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:53,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:53,624 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2024-11-27 20:24:53,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:53,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-27 20:24:53,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:53,625 INFO L225 Difference]: With dead ends: 45 [2024-11-27 20:24:53,625 INFO L226 Difference]: Without dead ends: 35 [2024-11-27 20:24:53,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 20:24:53,626 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:53,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 45 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:24:53,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-27 20:24:53,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-27 20:24:53,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.21875) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:53,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2024-11-27 20:24:53,639 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2024-11-27 20:24:53,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:53,639 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2024-11-27 20:24:53,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:53,639 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2024-11-27 20:24:53,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-27 20:24:53,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:53,640 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:24:53,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:24:53,640 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:24:53,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:53,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1726758804, now seen corresponding path program 1 times [2024-11-27 20:24:53,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:53,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038390866] [2024-11-27 20:24:53,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:53,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:53,753 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 20:24:53,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:53,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038390866] [2024-11-27 20:24:53,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038390866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:53,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178099554] [2024-11-27 20:24:53,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:53,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:53,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:53,756 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:53,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:24:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:53,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:24:53,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:53,955 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 20:24:53,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:53,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178099554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:53,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:53,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-27 20:24:53,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971114211] [2024-11-27 20:24:53,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:53,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:53,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:53,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:53,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:53,957 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:54,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:54,022 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2024-11-27 20:24:54,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:24:54,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-27 20:24:54,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:54,024 INFO L225 Difference]: With dead ends: 62 [2024-11-27 20:24:54,024 INFO L226 Difference]: Without dead ends: 44 [2024-11-27 20:24:54,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:24:54,025 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:54,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 40 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:24:54,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-27 20:24:54,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 32. [2024-11-27 20:24:54,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2024-11-27 20:24:54,031 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 25 [2024-11-27 20:24:54,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:54,032 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2024-11-27 20:24:54,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:54,032 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2024-11-27 20:24:54,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-27 20:24:54,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:54,032 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:54,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:24:54,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:54,233 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:24:54,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:54,234 INFO L85 PathProgramCache]: Analyzing trace with hash 93816298, now seen corresponding path program 1 times [2024-11-27 20:24:54,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:54,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012069170] [2024-11-27 20:24:54,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:54,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 20:24:54,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:54,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012069170] [2024-11-27 20:24:54,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012069170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:54,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:54,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:54,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389388474] [2024-11-27 20:24:54,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:54,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:54,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:54,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:54,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:54,323 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:54,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:54,358 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2024-11-27 20:24:54,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:54,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-27 20:24:54,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:54,359 INFO L225 Difference]: With dead ends: 40 [2024-11-27 20:24:54,360 INFO L226 Difference]: Without dead ends: 38 [2024-11-27 20:24:54,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 20:24:54,361 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:54,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 49 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:24:54,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-27 20:24:54,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-27 20:24:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:54,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2024-11-27 20:24:54,372 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 29 [2024-11-27 20:24:54,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:54,373 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2024-11-27 20:24:54,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:54,373 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2024-11-27 20:24:54,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-27 20:24:54,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:54,374 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:54,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:24:54,374 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:24:54,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:54,375 INFO L85 PathProgramCache]: Analyzing trace with hash -502128094, now seen corresponding path program 1 times [2024-11-27 20:24:54,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:54,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509206598] [2024-11-27 20:24:54,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:54,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:54,628 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:24:54,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:54,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509206598] [2024-11-27 20:24:54,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509206598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:54,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228007640] [2024-11-27 20:24:54,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:54,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:54,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:54,632 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:54,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:24:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:54,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:24:54,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:54,818 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:24:54,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:54,987 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:24:54,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228007640] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:54,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:54,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-27 20:24:54,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761327915] [2024-11-27 20:24:54,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:54,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:24:54,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:54,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:24:54,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:24:54,989 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:55,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:55,092 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2024-11-27 20:24:55,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:24:55,096 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-27 20:24:55,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:55,097 INFO L225 Difference]: With dead ends: 77 [2024-11-27 20:24:55,097 INFO L226 Difference]: Without dead ends: 54 [2024-11-27 20:24:55,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:24:55,102 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:55,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 124 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:24:55,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-27 20:24:55,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-27 20:24:55,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.0961538461538463) internal successors, (57), 53 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:55,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2024-11-27 20:24:55,114 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 35 [2024-11-27 20:24:55,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:55,116 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2024-11-27 20:24:55,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:55,117 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2024-11-27 20:24:55,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 20:24:55,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:55,118 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:55,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:55,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 20:24:55,319 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:24:55,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:55,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1033832950, now seen corresponding path program 2 times [2024-11-27 20:24:55,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:55,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022796359] [2024-11-27 20:24:55,320 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:55,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:55,362 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:55,362 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-27 20:24:55,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:55,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022796359] [2024-11-27 20:24:55,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022796359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:55,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226193398] [2024-11-27 20:24:55,576 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:55,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:55,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:55,580 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:55,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:24:55,706 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:55,707 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:55,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:24:55,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:24:56,085 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:24:56,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226193398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:56,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:56,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 36 [2024-11-27 20:24:56,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118223157] [2024-11-27 20:24:56,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:56,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-27 20:24:56,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:56,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-27 20:24:56,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=980, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 20:24:56,710 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand has 36 states, 36 states have (on average 2.75) internal successors, (99), 36 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:57,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:57,003 INFO L93 Difference]: Finished difference Result 108 states and 122 transitions. [2024-11-27 20:24:57,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 20:24:57,004 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.75) internal successors, (99), 36 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-27 20:24:57,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:57,005 INFO L225 Difference]: With dead ends: 108 [2024-11-27 20:24:57,005 INFO L226 Difference]: Without dead ends: 85 [2024-11-27 20:24:57,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=280, Invalid=980, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 20:24:57,007 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:57,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 139 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:24:57,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-27 20:24:57,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-27 20:24:57,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.0476190476190477) internal successors, (88), 84 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2024-11-27 20:24:57,033 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 51 [2024-11-27 20:24:57,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:57,034 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2024-11-27 20:24:57,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.75) internal successors, (99), 36 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:57,034 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2024-11-27 20:24:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 20:24:57,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:57,036 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:57,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:57,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 20:24:57,237 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:24:57,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:57,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1705348556, now seen corresponding path program 1 times [2024-11-27 20:24:57,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:57,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270940401] [2024-11-27 20:24:57,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:57,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:57,580 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-27 20:24:57,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:57,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270940401] [2024-11-27 20:24:57,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270940401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:57,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127403041] [2024-11-27 20:24:57,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:57,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:57,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:57,586 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:57,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:24:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:57,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 20:24:57,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 20:24:58,692 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:25:00,398 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 20:25:00,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127403041] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:25:00,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:25:00,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 33, 33] total 69 [2024-11-27 20:25:00,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009521774] [2024-11-27 20:25:00,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:25:00,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-11-27 20:25:00,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:00,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-11-27 20:25:00,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1069, Invalid=3623, Unknown=0, NotChecked=0, Total=4692 [2024-11-27 20:25:00,404 INFO L87 Difference]: Start difference. First operand 85 states and 88 transitions. Second operand has 69 states, 69 states have (on average 2.3333333333333335) internal successors, (161), 69 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:03,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:03,206 INFO L93 Difference]: Finished difference Result 186 states and 209 transitions. [2024-11-27 20:25:03,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-27 20:25:03,207 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 2.3333333333333335) internal successors, (161), 69 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-27 20:25:03,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:03,208 INFO L225 Difference]: With dead ends: 186 [2024-11-27 20:25:03,209 INFO L226 Difference]: Without dead ends: 156 [2024-11-27 20:25:03,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4300 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3194, Invalid=13836, Unknown=0, NotChecked=0, Total=17030 [2024-11-27 20:25:03,220 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:03,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 105 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:25:03,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-27 20:25:03,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2024-11-27 20:25:03,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.0326797385620916) internal successors, (158), 153 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:03,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2024-11-27 20:25:03,248 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 84 [2024-11-27 20:25:03,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:03,248 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2024-11-27 20:25:03,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 2.3333333333333335) internal successors, (161), 69 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:03,249 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2024-11-27 20:25:03,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-27 20:25:03,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:03,254 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:03,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 20:25:03,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 20:25:03,455 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:25:03,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:03,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2010063400, now seen corresponding path program 2 times [2024-11-27 20:25:03,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:03,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921183642] [2024-11-27 20:25:03,457 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:25:03,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:03,491 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:25:03,492 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:25:03,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 1899 trivial. 0 not checked. [2024-11-27 20:25:03,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:03,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921183642] [2024-11-27 20:25:03,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921183642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:25:03,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383786939] [2024-11-27 20:25:03,548 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:25:03,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:03,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:03,550 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:03,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:25:03,673 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:25:03,673 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:25:03,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:25:03,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:03,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 1899 trivial. 0 not checked. [2024-11-27 20:25:03,750 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:25:03,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 1899 trivial. 0 not checked. [2024-11-27 20:25:03,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383786939] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:25:03,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:25:03,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-27 20:25:03,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013506239] [2024-11-27 20:25:03,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:25:03,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:25:03,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:03,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:25:03,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:25:03,835 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:04,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:04,032 INFO L93 Difference]: Finished difference Result 170 states and 176 transitions. [2024-11-27 20:25:04,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:25:04,032 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2024-11-27 20:25:04,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:04,033 INFO L225 Difference]: With dead ends: 170 [2024-11-27 20:25:04,033 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:25:04,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:25:04,035 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 29 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:04,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 52 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:25:04,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:25:04,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:25:04,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:04,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:25:04,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2024-11-27 20:25:04,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:04,037 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:25:04,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:04,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:25:04,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:25:04,040 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-27 20:25:04,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-27 20:25:04,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-27 20:25:04,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-27 20:25:04,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-27 20:25:04,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-27 20:25:04,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:25:04,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:04,247 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:04,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:25:04,603 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:25:04,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:25:04 BoogieIcfgContainer [2024-11-27 20:25:04,623 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:25:04,624 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:25:04,624 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:25:04,624 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:25:04,625 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:24:50" (3/4) ... [2024-11-27 20:25:04,628 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:25:04,640 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-27 20:25:04,640 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 20:25:04,641 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 20:25:04,641 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:25:04,756 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:25:04,756 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:25:04,756 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:25:04,758 INFO L158 Benchmark]: Toolchain (without parser) took 15219.40ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 105.7MB in the beginning and 83.1MB in the end (delta: 22.6MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2024-11-27 20:25:04,758 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:25:04,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.49ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 95.0MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:25:04,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.65ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 93.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:25:04,760 INFO L158 Benchmark]: Boogie Preprocessor took 59.90ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 92.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:25:04,760 INFO L158 Benchmark]: RCFGBuilder took 421.21ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 80.7MB in the end (delta: 11.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:25:04,761 INFO L158 Benchmark]: TraceAbstraction took 14280.91ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 80.4MB in the beginning and 88.3MB in the end (delta: -7.9MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-11-27 20:25:04,762 INFO L158 Benchmark]: Witness Printer took 132.63ms. Allocated memory is still 176.2MB. Free memory was 88.3MB in the beginning and 83.1MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:25:04,766 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.49ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 95.0MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.65ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 93.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.90ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 92.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 421.21ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 80.7MB in the end (delta: 11.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14280.91ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 80.4MB in the beginning and 88.3MB in the end (delta: -7.9MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * Witness Printer took 132.63ms. Allocated memory is still 176.2MB. Free memory was 88.3MB in the beginning and 83.1MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 13.8s, OverallIterations: 13, TraceHistogramMax: 31, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 896 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 662 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 804 IncrementalHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 234 mSDtfsCounter, 804 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 857 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4698 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=12, InterpolantAutomatonStates: 171, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 26 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 860 NumberOfCodeBlocks, 568 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1172 ConstructedInterpolants, 0 QuantifiedInterpolants, 2156 SizeOfPredicates, 2 NumberOfNonLiveVariables, 951 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 27 InterpolantComputations, 8 PerfectInterpolantSequences, 6378/7512 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((i <= 2147483647) && (0 <= i)) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((i == 0) && (j == 0)) || ((i == 0) && (1 <= j))) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((i <= 2147483647) && (0 <= i)) && (1 <= x)) || (((i <= 2147483647) && (0 <= i)) && (x == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-27 20:25:04,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01fb59c1-5464-4564-8294-80f7589d3132/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE