./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound20.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_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/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_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/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_3156fc1e-bca4-4e4f-a232-1f597a5de981/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 cc20d196113d3ae541f6b6d9413b3adf505f83f475b90cd277ec788090ea4b3d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:06:39,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:06:39,993 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:06:40,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:06:40,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:06:40,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:06:40,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:06:40,043 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:06:40,044 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:06:40,044 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:06:40,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:06:40,046 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:06:40,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:06:40,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:06:40,047 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:06:40,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:06:40,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:06:40,048 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:06:40,048 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:06:40,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:06:40,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:06:40,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:06:40,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:06:40,049 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:06:40,049 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:06:40,049 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:06:40,049 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:06:40,049 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:06:40,049 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:06:40,049 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:06:40,050 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:06:40,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:06:40,051 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:06:40,051 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:06:40,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:06:40,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:06:40,051 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:06:40,051 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:06:40,051 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:06:40,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:06:40,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:06:40,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:06:40,052 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:06:40,052 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:06:40,052 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:06:40,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:06:40,052 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:06:40,053 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:06:40,053 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:06:40,053 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:06:40,053 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_3156fc1e-bca4-4e4f-a232-1f597a5de981/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 -> cc20d196113d3ae541f6b6d9413b3adf505f83f475b90cd277ec788090ea4b3d [2024-11-27 20:06:40,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:06:40,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:06:40,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:06:40,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:06:40,339 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:06:40,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound20.i [2024-11-27 20:06:43,531 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/data/1f0aa6c43/db45258723124ce8a0c2b6d23952b2c6/FLAGf3f75395d [2024-11-27 20:06:43,899 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:06:43,899 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound20.i [2024-11-27 20:06:43,911 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/data/1f0aa6c43/db45258723124ce8a0c2b6d23952b2c6/FLAGf3f75395d [2024-11-27 20:06:44,111 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/data/1f0aa6c43/db45258723124ce8a0c2b6d23952b2c6 [2024-11-27 20:06:44,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:06:44,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:06:44,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:06:44,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:06:44,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:06:44,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fd08a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44, skipping insertion in model container [2024-11-27 20:06:44,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,149 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:06:44,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:06:44,332 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:06:44,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:06:44,368 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:06:44,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44 WrapperNode [2024-11-27 20:06:44,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:06:44,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:06:44,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:06:44,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:06:44,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,411 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2024-11-27 20:06:44,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:06:44,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:06:44,412 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:06:44,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:06:44,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,424 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,436 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:06:44,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,436 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,440 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,441 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:06:44,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:06:44,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:06:44,450 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:06:44,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:06:44,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:44,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:06:44,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:06:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:06:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:06:44,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:06:44,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:06:44,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:06:44,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:06:44,615 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:06:44,618 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:06:44,821 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-27 20:06:44,821 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:06:44,838 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:06:44,838 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:06:44,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:06:44 BoogieIcfgContainer [2024-11-27 20:06:44,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:06:44,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:06:44,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:06:44,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:06:44,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:06:44" (1/3) ... [2024-11-27 20:06:44,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64535fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:06:44, skipping insertion in model container [2024-11-27 20:06:44,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (2/3) ... [2024-11-27 20:06:44,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64535fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:06:44, skipping insertion in model container [2024-11-27 20:06:44,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:06:44" (3/3) ... [2024-11-27 20:06:44,858 INFO L128 eAbstractionObserver]: Analyzing ICFG divbin2_unwindbound20.i [2024-11-27 20:06:44,881 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:06:44,883 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG divbin2_unwindbound20.i that has 2 procedures, 30 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-27 20:06:44,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:06:44,983 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;@18aeaca0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:06:44,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-27 20:06:44,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 26 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:06:44,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-27 20:06:44,994 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:44,995 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-27 20:06:44,996 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 20:06:45,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:45,004 INFO L85 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2024-11-27 20:06:45,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:45,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512144097] [2024-11-27 20:06:45,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:45,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:45,288 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 20:06:45,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:45,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512144097] [2024-11-27 20:06:45,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512144097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:45,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:45,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:06:45,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639679508] [2024-11-27 20:06:45,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:45,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:06:45,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:45,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:06:45,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:45,333 INFO L87 Difference]: Start difference. First operand has 30 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 26 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 20:06:45,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:45,427 INFO L93 Difference]: Finished difference Result 55 states and 73 transitions. [2024-11-27 20:06:45,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:06:45,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-11-27 20:06:45,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:45,438 INFO L225 Difference]: With dead ends: 55 [2024-11-27 20:06:45,439 INFO L226 Difference]: Without dead ends: 26 [2024-11-27 20:06:45,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:45,452 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 13 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:45,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 71 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:06:45,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-27 20:06:45,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2024-11-27 20:06:45,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-11-27 20:06:45,505 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 4 [2024-11-27 20:06:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:45,508 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-27 20:06:45,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 20:06:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-11-27 20:06:45,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 20:06:45,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:45,510 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 20:06:45,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:06:45,511 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 20:06:45,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:45,512 INFO L85 PathProgramCache]: Analyzing trace with hash 28694756, now seen corresponding path program 1 times [2024-11-27 20:06:45,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:45,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041630171] [2024-11-27 20:06:45,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:45,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:45,595 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 20:06:45,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:45,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041630171] [2024-11-27 20:06:45,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041630171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:45,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:45,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:06:45,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294178783] [2024-11-27 20:06:45,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:45,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:06:45,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:45,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:06:45,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:45,598 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 20:06:45,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:45,641 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2024-11-27 20:06:45,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:06:45,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 20:06:45,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:45,643 INFO L225 Difference]: With dead ends: 39 [2024-11-27 20:06:45,643 INFO L226 Difference]: Without dead ends: 25 [2024-11-27 20:06:45,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:45,645 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:45,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 54 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:06:45,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-27 20:06:45,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-27 20:06:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.3) internal successors, (26), 22 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:45,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2024-11-27 20:06:45,655 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 5 [2024-11-27 20:06:45,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:45,656 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2024-11-27 20:06:45,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 20:06:45,656 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2024-11-27 20:06:45,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 20:06:45,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:45,657 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:45,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:06:45,658 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 20:06:45,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:45,661 INFO L85 PathProgramCache]: Analyzing trace with hash 262869484, now seen corresponding path program 1 times [2024-11-27 20:06:45,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:45,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221773396] [2024-11-27 20:06:45,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:45,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:45,816 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 20:06:45,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:45,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221773396] [2024-11-27 20:06:45,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221773396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:45,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:45,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:06:45,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052307746] [2024-11-27 20:06:45,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:45,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:06:45,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:45,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:06:45,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:06:45,819 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:45,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:45,941 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2024-11-27 20:06:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:06:45,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 20:06:45,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:45,944 INFO L225 Difference]: With dead ends: 25 [2024-11-27 20:06:45,945 INFO L226 Difference]: Without dead ends: 24 [2024-11-27 20:06:45,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:06:45,946 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:45,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 35 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:45,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-27 20:06:45,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-27 20:06:45,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:45,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-11-27 20:06:45,957 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 9 [2024-11-27 20:06:45,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:45,957 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-11-27 20:06:45,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:45,958 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-11-27 20:06:45,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 20:06:45,959 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:45,959 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:45,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:06:45,960 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 20:06:45,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:45,964 INFO L85 PathProgramCache]: Analyzing trace with hash -440980527, now seen corresponding path program 1 times [2024-11-27 20:06:45,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:45,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116809523] [2024-11-27 20:06:45,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:45,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:46,101 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 20:06:46,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:46,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116809523] [2024-11-27 20:06:46,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116809523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:46,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:46,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:06:46,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997167076] [2024-11-27 20:06:46,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:46,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:06:46,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:46,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:06:46,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:06:46,103 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:46,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:46,225 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2024-11-27 20:06:46,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:06:46,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-27 20:06:46,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:46,227 INFO L225 Difference]: With dead ends: 34 [2024-11-27 20:06:46,227 INFO L226 Difference]: Without dead ends: 33 [2024-11-27 20:06:46,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:06:46,228 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 12 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:46,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 60 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:46,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-27 20:06:46,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2024-11-27 20:06:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-11-27 20:06:46,235 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 10 [2024-11-27 20:06:46,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:46,235 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-11-27 20:06:46,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:46,237 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-11-27 20:06:46,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 20:06:46,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:46,239 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:46,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:06:46,239 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 20:06:46,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:46,240 INFO L85 PathProgramCache]: Analyzing trace with hash -440941798, now seen corresponding path program 1 times [2024-11-27 20:06:46,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:46,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194575930] [2024-11-27 20:06:46,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:46,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:46,365 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 20:06:46,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:46,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194575930] [2024-11-27 20:06:46,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194575930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:46,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389894486] [2024-11-27 20:06:46,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:46,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:46,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:46,368 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:46,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:06:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:46,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:06:46,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:46,525 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 20:06:46,525 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:06:46,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389894486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:46,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:06:46,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2024-11-27 20:06:46,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654305799] [2024-11-27 20:06:46,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:46,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:06:46,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:46,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:06:46,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:06:46,527 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:46,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:46,606 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2024-11-27 20:06:46,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:06:46,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-27 20:06:46,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:46,607 INFO L225 Difference]: With dead ends: 32 [2024-11-27 20:06:46,607 INFO L226 Difference]: Without dead ends: 31 [2024-11-27 20:06:46,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:06:46,609 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:46,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 58 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:06:46,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-27 20:06:46,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2024-11-27 20:06:46,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:46,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-11-27 20:06:46,615 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 10 [2024-11-27 20:06:46,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:46,615 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-11-27 20:06:46,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:46,616 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-11-27 20:06:46,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-27 20:06:46,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:46,616 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:46,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:06:46,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:46,821 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 20:06:46,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:46,822 INFO L85 PathProgramCache]: Analyzing trace with hash -274597848, now seen corresponding path program 1 times [2024-11-27 20:06:46,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:46,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001761340] [2024-11-27 20:06:46,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:46,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:46,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:46,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:46,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001761340] [2024-11-27 20:06:46,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001761340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:46,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122175927] [2024-11-27 20:06:46,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:46,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:46,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:46,929 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:46,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:06:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:46,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:06:46,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:47,014 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:47,014 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:47,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122175927] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:06:47,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:06:47,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-27 20:06:47,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253661] [2024-11-27 20:06:47,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:47,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:06:47,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:47,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:06:47,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:06:47,099 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 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 20:06:47,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:47,246 INFO L93 Difference]: Finished difference Result 61 states and 71 transitions. [2024-11-27 20:06:47,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:06:47,247 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 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) Word has length 14 [2024-11-27 20:06:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:47,248 INFO L225 Difference]: With dead ends: 61 [2024-11-27 20:06:47,248 INFO L226 Difference]: Without dead ends: 49 [2024-11-27 20:06:47,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:06:47,249 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 31 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:47,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 83 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:47,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-27 20:06:47,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2024-11-27 20:06:47,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 38 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:47,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2024-11-27 20:06:47,256 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 14 [2024-11-27 20:06:47,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:47,256 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2024-11-27 20:06:47,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 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 20:06:47,256 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2024-11-27 20:06:47,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 20:06:47,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:47,257 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:47,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:06:47,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:47,461 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 20:06:47,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:47,461 INFO L85 PathProgramCache]: Analyzing trace with hash 75314011, now seen corresponding path program 1 times [2024-11-27 20:06:47,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:47,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950052852] [2024-11-27 20:06:47,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:47,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:47,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:47,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:47,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950052852] [2024-11-27 20:06:47,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950052852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:47,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631061264] [2024-11-27 20:06:47,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:47,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:47,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:47,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:47,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:06:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:47,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:06:47,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:47,767 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:47,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:47,931 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:47,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631061264] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:06:47,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:06:47,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2024-11-27 20:06:47,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059971160] [2024-11-27 20:06:47,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:47,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:06:47,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:47,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:06:47,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:06:47,937 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 18 states, 17 states have (on average 2.411764705882353) internal successors, (41), 18 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 20:06:48,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:48,394 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2024-11-27 20:06:48,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-27 20:06:48,395 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.411764705882353) internal successors, (41), 18 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) Word has length 15 [2024-11-27 20:06:48,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:48,396 INFO L225 Difference]: With dead ends: 70 [2024-11-27 20:06:48,396 INFO L226 Difference]: Without dead ends: 69 [2024-11-27 20:06:48,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2024-11-27 20:06:48,398 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 107 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:48,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 123 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:06:48,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-27 20:06:48,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2024-11-27 20:06:48,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 56 states have internal predecessors, (65), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:06:48,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2024-11-27 20:06:48,410 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 15 [2024-11-27 20:06:48,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:48,411 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2024-11-27 20:06:48,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.411764705882353) internal successors, (41), 18 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 20:06:48,411 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2024-11-27 20:06:48,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-27 20:06:48,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:48,412 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:48,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:06:48,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-27 20:06:48,617 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 20:06:48,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:48,618 INFO L85 PathProgramCache]: Analyzing trace with hash -258248724, now seen corresponding path program 1 times [2024-11-27 20:06:48,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:48,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051751592] [2024-11-27 20:06:48,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:48,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:06:49,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:49,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051751592] [2024-11-27 20:06:49,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051751592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:49,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630436734] [2024-11-27 20:06:49,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:49,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:49,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:49,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:49,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:06:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:49,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:06:49,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:49,453 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:49,453 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:49,816 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:06:49,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630436734] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:06:49,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:06:49,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2024-11-27 20:06:49,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917243767] [2024-11-27 20:06:49,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:49,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-27 20:06:49,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:49,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-27 20:06:49,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=658, Unknown=0, NotChecked=0, Total=870 [2024-11-27 20:06:49,825 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand has 30 states, 29 states have (on average 3.1724137931034484) internal successors, (92), 30 states have internal predecessors, (92), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:06:50,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:50,858 INFO L93 Difference]: Finished difference Result 216 states and 245 transitions. [2024-11-27 20:06:50,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-27 20:06:50,859 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.1724137931034484) internal successors, (92), 30 states have internal predecessors, (92), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 43 [2024-11-27 20:06:50,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:50,861 INFO L225 Difference]: With dead ends: 216 [2024-11-27 20:06:50,861 INFO L226 Difference]: Without dead ends: 215 [2024-11-27 20:06:50,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=896, Invalid=2296, Unknown=0, NotChecked=0, Total=3192 [2024-11-27 20:06:50,867 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 151 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:50,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 204 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:06:50,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-27 20:06:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 162. [2024-11-27 20:06:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 137 states have (on average 1.1313868613138687) internal successors, (155), 137 states have internal predecessors, (155), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:06:50,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 179 transitions. [2024-11-27 20:06:50,915 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 179 transitions. Word has length 43 [2024-11-27 20:06:50,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:50,915 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 179 transitions. [2024-11-27 20:06:50,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.1724137931034484) internal successors, (92), 30 states have internal predecessors, (92), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:06:50,916 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 179 transitions. [2024-11-27 20:06:50,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 20:06:50,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:50,920 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-27 20:06:50,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:06:51,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:51,124 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 20:06:51,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:51,125 INFO L85 PathProgramCache]: Analyzing trace with hash -192255278, now seen corresponding path program 1 times [2024-11-27 20:06:51,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:51,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232386033] [2024-11-27 20:06:51,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:51,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:51,405 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-27 20:06:51,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:51,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232386033] [2024-11-27 20:06:51,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232386033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:51,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287835692] [2024-11-27 20:06:51,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:51,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:51,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:51,409 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:51,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:06:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:51,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:06:51,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:51,552 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-27 20:06:51,552 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:51,808 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-27 20:06:51,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287835692] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:06:51,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:06:51,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 22 [2024-11-27 20:06:51,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006103301] [2024-11-27 20:06:51,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:51,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:06:51,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:51,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:06:51,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:06:51,811 INFO L87 Difference]: Start difference. First operand 162 states and 179 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:06:52,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:52,358 INFO L93 Difference]: Finished difference Result 242 states and 273 transitions. [2024-11-27 20:06:52,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-27 20:06:52,359 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 51 [2024-11-27 20:06:52,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:52,360 INFO L225 Difference]: With dead ends: 242 [2024-11-27 20:06:52,361 INFO L226 Difference]: Without dead ends: 216 [2024-11-27 20:06:52,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2024-11-27 20:06:52,366 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 87 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:52,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 151 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:52,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-27 20:06:52,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 192. [2024-11-27 20:06:52,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 167 states have (on average 1.1437125748502994) internal successors, (191), 167 states have internal predecessors, (191), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:06:52,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 215 transitions. [2024-11-27 20:06:52,409 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 215 transitions. Word has length 51 [2024-11-27 20:06:52,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:52,413 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 215 transitions. [2024-11-27 20:06:52,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:06:52,414 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 215 transitions. [2024-11-27 20:06:52,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-27 20:06:52,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:52,417 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-27 20:06:52,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:06:52,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-27 20:06:52,618 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 20:06:52,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:52,618 INFO L85 PathProgramCache]: Analyzing trace with hash -2053275630, now seen corresponding path program 2 times [2024-11-27 20:06:52,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:52,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061353548] [2024-11-27 20:06:52,619 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:06:52,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:52,662 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:06:52,663 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:06:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-27 20:06:52,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:52,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061353548] [2024-11-27 20:06:52,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061353548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:52,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:52,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:06:52,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029594004] [2024-11-27 20:06:52,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:52,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:06:52,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:52,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:06:52,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:52,822 INFO L87 Difference]: Start difference. First operand 192 states and 215 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:52,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:52,883 INFO L93 Difference]: Finished difference Result 218 states and 243 transitions. [2024-11-27 20:06:52,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:06:52,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2024-11-27 20:06:52,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:52,887 INFO L225 Difference]: With dead ends: 218 [2024-11-27 20:06:52,887 INFO L226 Difference]: Without dead ends: 192 [2024-11-27 20:06:52,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:06:52,890 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:52,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 62 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:06:52,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-27 20:06:52,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 148. [2024-11-27 20:06:52,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.1219512195121952) internal successors, (138), 123 states have internal predecessors, (138), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:06:52,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 162 transitions. [2024-11-27 20:06:52,917 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 162 transitions. Word has length 81 [2024-11-27 20:06:52,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:52,919 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 162 transitions. [2024-11-27 20:06:52,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:06:52,920 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 162 transitions. [2024-11-27 20:06:52,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 20:06:52,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:52,924 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:06:52,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:06:52,924 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 20:06:52,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:52,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1845283291, now seen corresponding path program 1 times [2024-11-27 20:06:52,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:52,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063663719] [2024-11-27 20:06:52,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:52,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:54,038 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:06:54,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:54,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063663719] [2024-11-27 20:06:54,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063663719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:54,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103170518] [2024-11-27 20:06:54,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:54,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:54,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:54,042 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:54,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:06:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:54,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 20:06:54,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:54,994 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 3 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:54,994 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 3 proven. 222 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:06:56,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103170518] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:06:56,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:06:56,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22, 22] total 65 [2024-11-27 20:06:56,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328043390] [2024-11-27 20:06:56,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:56,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-11-27 20:06:56,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:56,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-11-27 20:06:56,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=974, Invalid=3316, Unknown=0, NotChecked=0, Total=4290 [2024-11-27 20:06:56,157 INFO L87 Difference]: Start difference. First operand 148 states and 162 transitions. Second operand has 66 states, 65 states have (on average 3.2615384615384615) internal successors, (212), 66 states have internal predecessors, (212), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 20:06:59,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:59,033 INFO L93 Difference]: Finished difference Result 526 states and 592 transitions. [2024-11-27 20:06:59,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-11-27 20:06:59,034 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 3.2615384615384615) internal successors, (212), 66 states have internal predecessors, (212), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 103 [2024-11-27 20:06:59,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:59,038 INFO L225 Difference]: With dead ends: 526 [2024-11-27 20:06:59,038 INFO L226 Difference]: Without dead ends: 525 [2024-11-27 20:06:59,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3568 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=4405, Invalid=11597, Unknown=0, NotChecked=0, Total=16002 [2024-11-27 20:06:59,048 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 448 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:59,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 330 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:06:59,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-11-27 20:06:59,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 318. [2024-11-27 20:06:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 263 states have (on average 1.11787072243346) internal successors, (294), 263 states have internal predecessors, (294), 27 states have call successors, (27), 27 states have call predecessors, (27), 27 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 20:06:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 348 transitions. [2024-11-27 20:06:59,078 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 348 transitions. Word has length 103 [2024-11-27 20:06:59,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:59,078 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 348 transitions. [2024-11-27 20:06:59,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 3.2615384615384615) internal successors, (212), 66 states have internal predecessors, (212), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 20:06:59,079 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 348 transitions. [2024-11-27 20:06:59,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-27 20:06:59,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:59,082 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-27 20:06:59,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:06:59,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 20:06:59,286 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 20:06:59,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:59,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1206200369, now seen corresponding path program 2 times [2024-11-27 20:06:59,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:59,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323766394] [2024-11-27 20:06:59,287 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:06:59,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:59,364 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:06:59,364 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:06:59,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 1630 trivial. 0 not checked. [2024-11-27 20:06:59,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:59,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323766394] [2024-11-27 20:06:59,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323766394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:59,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:59,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:06:59,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019025268] [2024-11-27 20:06:59,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:59,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:06:59,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:59,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:06:59,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:59,758 INFO L87 Difference]: Start difference. First operand 318 states and 348 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:06:59,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:59,834 INFO L93 Difference]: Finished difference Result 322 states and 352 transitions. [2024-11-27 20:06:59,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:06:59,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 218 [2024-11-27 20:06:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:59,837 INFO L225 Difference]: With dead ends: 322 [2024-11-27 20:06:59,837 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:06:59,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:06:59,841 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:59,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 47 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:06:59,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:06:59,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:06:59,842 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 20:06:59,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:06:59,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 218 [2024-11-27 20:06:59,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:59,843 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:06:59,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:06:59,843 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:06:59,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:06:59,847 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-27 20:06:59,848 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-27 20:06:59,848 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-27 20:06:59,848 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-27 20:06:59,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:06:59,852 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:59,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:07:01,040 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:07:01,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:07:01 BoogieIcfgContainer [2024-11-27 20:07:01,055 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:07:01,056 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:07:01,056 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:07:01,056 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:07:01,057 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:06:44" (3/4) ... [2024-11-27 20:07:01,059 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:07:01,065 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-27 20:07:01,069 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-27 20:07:01,069 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 20:07:01,070 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 20:07:01,070 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:07:01,165 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:07:01,166 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:07:01,166 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:07:01,167 INFO L158 Benchmark]: Toolchain (without parser) took 17050.50ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 93.1MB in the beginning and 78.0MB in the end (delta: 15.1MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. [2024-11-27 20:07:01,168 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:07:01,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.62ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 82.1MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:07:01,169 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.08ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:07:01,169 INFO L158 Benchmark]: Boogie Preprocessor took 36.18ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:07:01,169 INFO L158 Benchmark]: RCFGBuilder took 391.22ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 69.0MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:07:01,170 INFO L158 Benchmark]: TraceAbstraction took 16210.02ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 68.4MB in the beginning and 84.5MB in the end (delta: -16.1MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2024-11-27 20:07:01,170 INFO L158 Benchmark]: Witness Printer took 110.60ms. Allocated memory is still 176.2MB. Free memory was 84.5MB in the beginning and 78.0MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:07:01,172 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.62ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 82.1MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.08ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.18ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 391.22ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 69.0MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 16210.02ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 68.4MB in the beginning and 84.5MB in the end (delta: -16.1MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. * Witness Printer took 110.60ms. Allocated memory is still 176.2MB. Free memory was 84.5MB in the beginning and 78.0MB in the end (delta: 6.4MB). 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: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: 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 2 procedures, 30 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 14.9s, OverallIterations: 12, TraceHistogramMax: 19, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 896 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 896 mSDsluCounter, 1278 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1077 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1035 IncrementalHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 201 mSDtfsCounter, 1035 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 674 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4643 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred in iteration=11, InterpolantAutomatonStates: 246, 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, 12 MinimizatonAttempts, 356 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 799 NumberOfCodeBlocks, 799 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1002 ConstructedInterpolants, 0 QuantifiedInterpolants, 2060 SizeOfPredicates, 42 NumberOfNonLiveVariables, 590 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 23 InterpolantComputations, 7 PerfectInterpolantSequences, 2348/3393 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 4 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((1 <= counter) && (counter <= 20)) || (counter == 0)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((1 <= counter) && (counter <= 20)) || ((21 <= counter) && (counter <= 2147483645))) RESULT: Ultimate proved your program to be correct! [2024-11-27 20:07:01,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3156fc1e-bca4-4e4f-a232-1f597a5de981/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE