./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1 --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 2c82dcc3d917c20926ea634368e9542e23b7ae4e7817b33542bbba01403d748d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:04:22,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:04:22,884 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 07:04:22,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:04:22,889 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:04:22,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:04:22,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:04:22,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:04:22,912 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:04:22,912 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:04:22,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:04:22,912 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:04:22,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:04:22,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:04:22,913 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:04:22,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:04:22,913 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:04:22,913 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:04:22,913 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:04:22,913 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:04:22,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:04:22,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:04:22,914 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:04:22,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:04:22,914 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:04:22,914 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:04:22,914 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:04:22,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:04:22,914 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:04:22,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:04:22,914 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:04:22,914 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:04:22,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:04:22,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:04:22,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:22,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:04:22,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:04:22,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:04:22,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:04:22,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:22,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:04:22,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:04:22,915 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:04:22,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:04:22,915 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:04:22,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:04:22,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:04:22,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:04:22,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:04:22,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:04:22,916 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_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1 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 -> 2c82dcc3d917c20926ea634368e9542e23b7ae4e7817b33542bbba01403d748d [2024-12-02 07:04:23,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:04:23,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:04:23,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:04:23,156 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:04:23,157 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:04:23,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound2.c [2024-12-02 07:04:25,861 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/data/510d66af0/1f5237963fa44c578f03a29c9ed0706d/FLAG2a70e1344 [2024-12-02 07:04:26,048 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:04:26,049 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound2.c [2024-12-02 07:04:26,056 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/data/510d66af0/1f5237963fa44c578f03a29c9ed0706d/FLAG2a70e1344 [2024-12-02 07:04:26,431 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/data/510d66af0/1f5237963fa44c578f03a29c9ed0706d [2024-12-02 07:04:26,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:04:26,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:04:26,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:04:26,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:04:26,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:04:26,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f622f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26, skipping insertion in model container [2024-12-02 07:04:26,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,452 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:04:26,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:04:26,562 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:04:26,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:04:26,583 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:04:26,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26 WrapperNode [2024-12-02 07:04:26,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:04:26,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:04:26,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:04:26,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:04:26,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,610 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2024-12-02 07:04:26,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:04:26,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:04:26,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:04:26,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:04:26,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,618 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,625 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]. [2024-12-02 07:04:26,626 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,628 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:04:26,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:04:26,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:04:26,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:04:26,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (1/1) ... [2024-12-02 07:04:26,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:26,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:26,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:04:26,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:04:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:04:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:04:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:04:26,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:04:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 07:04:26,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 07:04:26,731 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:04:26,732 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:04:26,835 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-02 07:04:26,835 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:04:26,841 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:04:26,842 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:04:26,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:26 BoogieIcfgContainer [2024-12-02 07:04:26,842 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:04:26,844 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:04:26,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:04:26,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:04:26,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:04:26" (1/3) ... [2024-12-02 07:04:26,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cacf75f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:04:26, skipping insertion in model container [2024-12-02 07:04:26,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:26" (2/3) ... [2024-12-02 07:04:26,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cacf75f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:04:26, skipping insertion in model container [2024-12-02 07:04:26,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:26" (3/3) ... [2024-12-02 07:04:26,852 INFO L128 eAbstractionObserver]: Analyzing ICFG freire1_valuebound2.c [2024-12-02 07:04:26,867 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:04:26,869 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG freire1_valuebound2.c that has 2 procedures, 29 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2024-12-02 07:04:26,917 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:04:26,929 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;@419d740, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:04:26,929 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-12-02 07:04:26,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 25 states have internal predecessors, (30), 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) [2024-12-02 07:04:26,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-02 07:04:26,938 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:26,938 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 07:04:26,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:04:26,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:26,944 INFO L85 PathProgramCache]: Analyzing trace with hash 28693835, now seen corresponding path program 1 times [2024-12-02 07:04:26,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:26,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219154386] [2024-12-02 07:04:26,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:26,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:27,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:27,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:27,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219154386] [2024-12-02 07:04:27,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219154386] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:27,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:27,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:04:27,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468550916] [2024-12-02 07:04:27,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:27,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:04:27,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:27,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:04:27,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:04:27,080 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 25 states have internal predecessors, (30), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2024-12-02 07:04:27,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:04:27,096 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2024-12-02 07:04:27,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:04:27,097 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2024-12-02 07:04:27,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:04:27,103 INFO L225 Difference]: With dead ends: 52 [2024-12-02 07:04:27,103 INFO L226 Difference]: Without dead ends: 20 [2024-12-02 07:04:27,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:04:27,108 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:04:27,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:04:27,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-12-02 07:04:27,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-12-02 07:04:27,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 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) [2024-12-02 07:04:27,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2024-12-02 07:04:27,140 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 5 [2024-12-02 07:04:27,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:04:27,140 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2024-12-02 07:04:27,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2024-12-02 07:04:27,141 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2024-12-02 07:04:27,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-02 07:04:27,141 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:27,141 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 07:04:27,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:04:27,142 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:04:27,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:27,142 INFO L85 PathProgramCache]: Analyzing trace with hash 889568518, now seen corresponding path program 1 times [2024-12-02 07:04:27,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:27,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197529026] [2024-12-02 07:04:27,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:27,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 07:04:27,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49052951] [2024-12-02 07:04:27,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:27,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:27,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:27,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:27,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:04:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:27,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 07:04:27,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:27,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:27,232 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:04:27,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:27,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197529026] [2024-12-02 07:04:27,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 07:04:27,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49052951] [2024-12-02 07:04:27,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49052951] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:27,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:27,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:04:27,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123151959] [2024-12-02 07:04:27,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:27,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:04:27,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:27,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:04:27,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:04:27,235 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:04:27,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:04:27,279 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2024-12-02 07:04:27,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:04:27,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-12-02 07:04:27,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:04:27,280 INFO L225 Difference]: With dead ends: 32 [2024-12-02 07:04:27,280 INFO L226 Difference]: Without dead ends: 26 [2024-12-02 07:04:27,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:04:27,281 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:04:27,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 24 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:04:27,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-12-02 07:04:27,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-12-02 07:04:27,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 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) [2024-12-02 07:04:27,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2024-12-02 07:04:27,286 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 6 [2024-12-02 07:04:27,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:04:27,287 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2024-12-02 07:04:27,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:04:27,287 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2024-12-02 07:04:27,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 07:04:27,288 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:27,288 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:27,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-12-02 07:04:27,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:27,489 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:04:27,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:27,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1967811614, now seen corresponding path program 1 times [2024-12-02 07:04:27,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:27,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642522157] [2024-12-02 07:04:27,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:27,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 07:04:27,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621429497] [2024-12-02 07:04:27,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:27,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:27,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:27,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:27,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:04:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:27,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 07:04:27,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:27,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:27,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:04:27,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:27,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:27,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642522157] [2024-12-02 07:04:27,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 07:04:27,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621429497] [2024-12-02 07:04:27,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621429497] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:04:27,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:04:27,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-12-02 07:04:27,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201245796] [2024-12-02 07:04:27,667 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:04:27,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:04:27,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:27,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:04:27,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:04:27,668 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-12-02 07:04:27,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:04:27,770 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2024-12-02 07:04:27,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:04:27,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 16 [2024-12-02 07:04:27,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:04:27,771 INFO L225 Difference]: With dead ends: 45 [2024-12-02 07:04:27,771 INFO L226 Difference]: Without dead ends: 35 [2024-12-02 07:04:27,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:04:27,772 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 22 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:04:27,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 42 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:04:27,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-12-02 07:04:27,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-12-02 07:04:27,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 07:04:27,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-12-02 07:04:27,780 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2024-12-02 07:04:27,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:04:27,781 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-12-02 07:04:27,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-12-02 07:04:27,781 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-12-02 07:04:27,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-12-02 07:04:27,782 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:27,782 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-12-02 07:04:27,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:04:27,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:27,983 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:04:27,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:27,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1431881334, now seen corresponding path program 2 times [2024-12-02 07:04:27,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:27,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105328159] [2024-12-02 07:04:27,984 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:04:27,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:28,025 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 07:04:28,026 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 07:04:28,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1847692912] [2024-12-02 07:04:28,027 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:04:28,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:28,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:28,029 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:28,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:04:28,082 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 07:04:28,082 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:04:28,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 07:04:28,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:28,171 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 07:04:28,171 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:04:28,358 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 07:04:28,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:28,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105328159] [2024-12-02 07:04:28,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 07:04:28,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847692912] [2024-12-02 07:04:28,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847692912] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:04:28,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:04:28,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-12-02 07:04:28,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443363962] [2024-12-02 07:04:28,358 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:04:28,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:04:28,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:28,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:04:28,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:04:28,360 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 07:04:28,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:04:28,611 INFO L93 Difference]: Finished difference Result 72 states and 86 transitions. [2024-12-02 07:04:28,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:04:28,612 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 46 [2024-12-02 07:04:28,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:04:28,614 INFO L225 Difference]: With dead ends: 72 [2024-12-02 07:04:28,614 INFO L226 Difference]: Without dead ends: 71 [2024-12-02 07:04:28,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:04:28,615 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 21 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:04:28,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 127 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:04:28,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-12-02 07:04:28,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-12-02 07:04:28,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 59 states have (on average 1.0169491525423728) internal successors, (60), 59 states have internal predecessors, (60), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 07:04:28,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2024-12-02 07:04:28,627 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 46 [2024-12-02 07:04:28,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:04:28,628 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 80 transitions. [2024-12-02 07:04:28,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 07:04:28,628 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 80 transitions. [2024-12-02 07:04:28,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 07:04:28,631 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:28,631 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2024-12-02 07:04:28,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:04:28,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:28,831 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:04:28,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:28,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1877555870, now seen corresponding path program 3 times [2024-12-02 07:04:28,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:28,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209903393] [2024-12-02 07:04:28,832 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 07:04:28,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:28,899 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-12-02 07:04:28,900 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 07:04:28,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2143737905] [2024-12-02 07:04:28,902 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 07:04:28,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:28,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:28,903 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:28,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 07:04:28,987 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-12-02 07:04:28,987 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:04:28,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 07:04:28,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:29,167 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 07:04:29,167 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:04:29,633 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 07:04:29,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:29,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209903393] [2024-12-02 07:04:29,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 07:04:29,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143737905] [2024-12-02 07:04:29,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143737905] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:04:29,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:04:29,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-12-02 07:04:29,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419955255] [2024-12-02 07:04:29,635 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:04:29,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 07:04:29,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:29,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 07:04:29,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:04:29,637 INFO L87 Difference]: Start difference. First operand 71 states and 80 transitions. Second operand has 24 states, 23 states have (on average 4.869565217391305) internal successors, (112), 24 states have internal predecessors, (112), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 07:04:30,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:04:30,509 INFO L93 Difference]: Finished difference Result 144 states and 176 transitions. [2024-12-02 07:04:30,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 07:04:30,509 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.869565217391305) internal successors, (112), 24 states have internal predecessors, (112), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 106 [2024-12-02 07:04:30,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:04:30,510 INFO L225 Difference]: With dead ends: 144 [2024-12-02 07:04:30,511 INFO L226 Difference]: Without dead ends: 143 [2024-12-02 07:04:30,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 07:04:30,511 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 36 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:04:30,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 385 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:04:30,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-12-02 07:04:30,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-12-02 07:04:30,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 119 states have (on average 1.0084033613445378) internal successors, (120), 119 states have internal predecessors, (120), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 07:04:30,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 164 transitions. [2024-12-02 07:04:30,528 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 164 transitions. Word has length 106 [2024-12-02 07:04:30,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:04:30,528 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 164 transitions. [2024-12-02 07:04:30,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.869565217391305) internal successors, (112), 24 states have internal predecessors, (112), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 07:04:30,529 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 164 transitions. [2024-12-02 07:04:30,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-12-02 07:04:30,532 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:30,532 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2024-12-02 07:04:30,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 07:04:30,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:30,733 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:04:30,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:30,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1751473902, now seen corresponding path program 4 times [2024-12-02 07:04:30,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:30,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131085455] [2024-12-02 07:04:30,734 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 07:04:30,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:30,815 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 07:04:30,815 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 07:04:30,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [498109260] [2024-12-02 07:04:30,818 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 07:04:30,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:30,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:30,821 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:30,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 07:04:30,933 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 07:04:30,933 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:04:30,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-02 07:04:30,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:31,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2354 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 07:04:31,374 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:04:32,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2354 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 07:04:32,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:32,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131085455] [2024-12-02 07:04:32,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 07:04:32,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498109260] [2024-12-02 07:04:32,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498109260] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:04:32,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:04:32,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2024-12-02 07:04:32,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229924166] [2024-12-02 07:04:32,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:04:32,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-12-02 07:04:32,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:32,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-12-02 07:04:32,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 07:04:32,608 INFO L87 Difference]: Start difference. First operand 143 states and 164 transitions. Second operand has 48 states, 47 states have (on average 4.9361702127659575) internal successors, (232), 48 states have internal predecessors, (232), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 07:04:35,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:04:35,634 INFO L93 Difference]: Finished difference Result 288 states and 356 transitions. [2024-12-02 07:04:35,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 07:04:35,635 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.9361702127659575) internal successors, (232), 48 states have internal predecessors, (232), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 226 [2024-12-02 07:04:35,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:04:35,637 INFO L225 Difference]: With dead ends: 288 [2024-12-02 07:04:35,638 INFO L226 Difference]: Without dead ends: 287 [2024-12-02 07:04:35,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2024-12-02 07:04:35,640 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 75 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 2803 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:04:35,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1249 Invalid, 2828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2803 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 07:04:35,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-12-02 07:04:35,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2024-12-02 07:04:35,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 239 states have (on average 1.00418410041841) internal successors, (240), 239 states have internal predecessors, (240), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 07:04:35,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 332 transitions. [2024-12-02 07:04:35,670 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 332 transitions. Word has length 226 [2024-12-02 07:04:35,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:04:35,671 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 332 transitions. [2024-12-02 07:04:35,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.9361702127659575) internal successors, (232), 48 states have internal predecessors, (232), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 07:04:35,671 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 332 transitions. [2024-12-02 07:04:35,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-12-02 07:04:35,681 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:35,681 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1] [2024-12-02 07:04:35,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 07:04:35,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 07:04:35,882 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:04:35,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:35,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1629317234, now seen corresponding path program 5 times [2024-12-02 07:04:35,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:35,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307460267] [2024-12-02 07:04:35,882 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:04:35,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:36,151 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-12-02 07:04:36,151 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 07:04:36,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534248347] [2024-12-02 07:04:36,156 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:04:36,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:36,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:36,159 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:36,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 07:04:36,443 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-12-02 07:04:36,443 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:04:36,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-12-02 07:04:36,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:37,569 INFO L134 CoverageAnalysis]: Checked inductivity of 10442 backedges. 0 proven. 6302 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-12-02 07:04:37,569 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:04:41,414 INFO L134 CoverageAnalysis]: Checked inductivity of 10442 backedges. 0 proven. 6302 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-12-02 07:04:41,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:41,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307460267] [2024-12-02 07:04:41,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 07:04:41,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534248347] [2024-12-02 07:04:41,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534248347] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:04:41,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:04:41,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2024-12-02 07:04:41,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537111860] [2024-12-02 07:04:41,414 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:04:41,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-12-02 07:04:41,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:41,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-12-02 07:04:41,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2024-12-02 07:04:41,420 INFO L87 Difference]: Start difference. First operand 287 states and 332 transitions. Second operand has 96 states, 95 states have (on average 4.968421052631579) internal successors, (472), 96 states have internal predecessors, (472), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 07:04:56,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:04:56,021 INFO L93 Difference]: Finished difference Result 576 states and 716 transitions. [2024-12-02 07:04:56,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-12-02 07:04:56,021 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.968421052631579) internal successors, (472), 96 states have internal predecessors, (472), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Word has length 466 [2024-12-02 07:04:56,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:04:56,024 INFO L225 Difference]: With dead ends: 576 [2024-12-02 07:04:56,024 INFO L226 Difference]: Without dead ends: 575 [2024-12-02 07:04:56,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 836 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2024-12-02 07:04:56,027 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 144 mSDsluCounter, 4704 mSDsCounter, 0 mSdLazyCounter, 11373 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 4853 SdHoareTripleChecker+Invalid, 11421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 11373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:04:56,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 4853 Invalid, 11421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 11373 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 07:04:56,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-12-02 07:04:56,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2024-12-02 07:04:56,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 479 states have (on average 1.0020876826722338) internal successors, (480), 479 states have internal predecessors, (480), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 07:04:56,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 668 transitions. [2024-12-02 07:04:56,051 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 668 transitions. Word has length 466 [2024-12-02 07:04:56,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:04:56,051 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 668 transitions. [2024-12-02 07:04:56,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.968421052631579) internal successors, (472), 96 states have internal predecessors, (472), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 07:04:56,052 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 668 transitions. [2024-12-02 07:04:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 947 [2024-12-02 07:04:56,080 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:56,080 INFO L218 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1] [2024-12-02 07:04:56,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 07:04:56,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 07:04:56,281 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:04:56,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:56,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1253099726, now seen corresponding path program 6 times [2024-12-02 07:04:56,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:56,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197042571] [2024-12-02 07:04:56,281 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 07:04:56,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:56,783 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-12-02 07:04:56,783 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 07:04:56,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777476410] [2024-12-02 07:04:56,788 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 07:04:56,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:56,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:56,789 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:56,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 07:04:57,866 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-12-02 07:04:57,867 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:04:57,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 1534 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-12-02 07:04:57,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:05:01,553 INFO L134 CoverageAnalysis]: Checked inductivity of 43898 backedges. 0 proven. 26414 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-12-02 07:05:01,553 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:05:02,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:05:02,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197042571] [2024-12-02 07:05:02,082 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 07:05:02,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777476410] [2024-12-02 07:05:02,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777476410] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:05:02,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:05:02,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2024-12-02 07:05:02,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277998005] [2024-12-02 07:05:02,083 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 07:05:02,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-12-02 07:05:02,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:05:02,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-12-02 07:05:02,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4771, Invalid=5531, Unknown=0, NotChecked=0, Total=10302 [2024-12-02 07:05:02,090 INFO L87 Difference]: Start difference. First operand 575 states and 668 transitions. Second operand has 98 states, 97 states have (on average 4.938144329896907) internal successors, (479), 98 states have internal predecessors, (479), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 07:05:08,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:05:08,036 INFO L93 Difference]: Finished difference Result 586 states and 681 transitions. [2024-12-02 07:05:08,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-12-02 07:05:08,037 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 4.938144329896907) internal successors, (479), 98 states have internal predecessors, (479), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 946 [2024-12-02 07:05:08,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:05:08,042 INFO L225 Difference]: With dead ends: 586 [2024-12-02 07:05:08,042 INFO L226 Difference]: Without dead ends: 585 [2024-12-02 07:05:08,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1055 GetRequests, 861 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4751 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=14359, Invalid=23861, Unknown=0, NotChecked=0, Total=38220 [2024-12-02 07:05:08,048 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 379 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:05:08,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 125 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:05:08,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-12-02 07:05:08,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 581. [2024-12-02 07:05:08,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 484 states have (on average 1.0020661157024793) internal successors, (485), 484 states have internal predecessors, (485), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-12-02 07:05:08,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 675 transitions. [2024-12-02 07:05:08,091 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 675 transitions. Word has length 946 [2024-12-02 07:05:08,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:05:08,093 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 675 transitions. [2024-12-02 07:05:08,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 4.938144329896907) internal successors, (479), 98 states have internal predecessors, (479), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 07:05:08,093 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 675 transitions. [2024-12-02 07:05:08,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2024-12-02 07:05:08,113 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:05:08,113 INFO L218 NwaCegarLoop]: trace histogram [96, 95, 95, 95, 95, 95, 95, 95, 95, 95, 1, 1, 1, 1, 1] [2024-12-02 07:05:08,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 07:05:08,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:05:08,314 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:05:08,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:05:08,314 INFO L85 PathProgramCache]: Analyzing trace with hash -319126102, now seen corresponding path program 7 times [2024-12-02 07:05:08,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:05:08,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620317002] [2024-12-02 07:05:08,315 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 07:05:08,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:05:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 07:05:08,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1089483114] [2024-12-02 07:05:08,514 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 07:05:08,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:05:08,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:05:08,516 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:05:08,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 07:05:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:05:08,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 1550 conjuncts, 193 conjuncts are in the unsatisfiable core [2024-12-02 07:05:08,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:05:12,320 INFO L134 CoverageAnalysis]: Checked inductivity of 44840 backedges. 0 proven. 26980 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-12-02 07:05:12,320 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:05:26,372 INFO L134 CoverageAnalysis]: Checked inductivity of 44840 backedges. 0 proven. 26980 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-12-02 07:05:26,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:05:26,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620317002] [2024-12-02 07:05:26,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 07:05:26,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089483114] [2024-12-02 07:05:26,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089483114] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:05:26,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:05:26,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 193 [2024-12-02 07:05:26,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475631211] [2024-12-02 07:05:26,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:05:26,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2024-12-02 07:05:26,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:05:26,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2024-12-02 07:05:26,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9601, Invalid=27841, Unknown=0, NotChecked=0, Total=37442 [2024-12-02 07:05:26,379 INFO L87 Difference]: Start difference. First operand 581 states and 675 transitions. Second operand has 194 states, 193 states have (on average 4.984455958549223) internal successors, (962), 194 states have internal predecessors, (962), 190 states have call successors, (190), 1 states have call predecessors, (190), 1 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2024-12-02 07:06:59,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:59,340 INFO L93 Difference]: Finished difference Result 1164 states and 1451 transitions. [2024-12-02 07:06:59,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2024-12-02 07:06:59,341 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 193 states have (on average 4.984455958549223) internal successors, (962), 194 states have internal predecessors, (962), 190 states have call successors, (190), 1 states have call predecessors, (190), 1 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) Word has length 956 [2024-12-02 07:06:59,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:59,345 INFO L225 Difference]: With dead ends: 1164 [2024-12-02 07:06:59,345 INFO L226 Difference]: Without dead ends: 1163 [2024-12-02 07:06:59,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2005 GetRequests, 1718 SyntacticMatches, 0 SemanticMatches, 287 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4465 ImplicationChecksByTransitivity, 94.9s TimeCoverageRelationStatistics Valid=28031, Invalid=55201, Unknown=0, NotChecked=0, Total=83232 [2024-12-02 07:06:59,349 INFO L435 NwaCegarLoop]: 296 mSDtfsCounter, 294 mSDsluCounter, 18911 mSDsCounter, 0 mSdLazyCounter, 46749 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 19207 SdHoareTripleChecker+Invalid, 46847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 46749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:59,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 19207 Invalid, 46847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [98 Valid, 46749 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2024-12-02 07:06:59,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2024-12-02 07:06:59,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1163. [2024-12-02 07:06:59,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 969 states have (on average 1.001031991744066) internal successors, (970), 969 states have internal predecessors, (970), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2024-12-02 07:06:59,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1354 transitions. [2024-12-02 07:06:59,404 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1354 transitions. Word has length 956 [2024-12-02 07:06:59,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:59,405 INFO L471 AbstractCegarLoop]: Abstraction has 1163 states and 1354 transitions. [2024-12-02 07:06:59,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 193 states have (on average 4.984455958549223) internal successors, (962), 194 states have internal predecessors, (962), 190 states have call successors, (190), 1 states have call predecessors, (190), 1 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2024-12-02 07:06:59,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1354 transitions. [2024-12-02 07:06:59,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1927 [2024-12-02 07:06:59,432 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:59,433 INFO L218 NwaCegarLoop]: trace histogram [193, 192, 192, 192, 192, 192, 192, 192, 192, 192, 1, 1, 1, 1, 1] [2024-12-02 07:06:59,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 07:06:59,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:06:59,633 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:06:59,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:59,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1068761606, now seen corresponding path program 8 times [2024-12-02 07:06:59,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:59,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995170212] [2024-12-02 07:06:59,635 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:06:59,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:07:00,023 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 07:07:00,023 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 07:07:00,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286627746] [2024-12-02 07:07:00,031 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:07:00,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:07:00,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:07:00,033 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:07:00,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 07:07:00,602 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 07:07:00,602 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:07:00,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 3102 conjuncts, 387 conjuncts are in the unsatisfiable core [2024-12-02 07:07:00,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:07:13,255 INFO L134 CoverageAnalysis]: Checked inductivity of 183744 backedges. 0 proven. 110400 refuted. 0 times theorem prover too weak. 73344 trivial. 0 not checked. [2024-12-02 07:07:13,255 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:08:08,528 INFO L134 CoverageAnalysis]: Checked inductivity of 183744 backedges. 0 proven. 110400 refuted. 0 times theorem prover too weak. 73344 trivial. 0 not checked. [2024-12-02 07:08:08,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:08:08,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995170212] [2024-12-02 07:08:08,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 07:08:08,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286627746] [2024-12-02 07:08:08,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286627746] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:08:08,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:08:08,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [194, 194] total 387 [2024-12-02 07:08:08,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841385133] [2024-12-02 07:08:08,530 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:08:08,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 388 states [2024-12-02 07:08:08,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:08:08,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 388 interpolants. [2024-12-02 07:08:08,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38022, Invalid=112134, Unknown=0, NotChecked=0, Total=150156 [2024-12-02 07:08:08,557 INFO L87 Difference]: Start difference. First operand 1163 states and 1354 transitions. Second operand has 388 states, 387 states have (on average 4.992248062015504) internal successors, (1932), 388 states have internal predecessors, (1932), 384 states have call successors, (384), 1 states have call predecessors, (384), 1 states have return successors, (384), 384 states have call predecessors, (384), 384 states have call successors, (384) [2024-12-02 07:14:41,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-12-02 07:14:41,310 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-02 07:14:41,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2024-12-02 07:14:41,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3927 GetRequests, 3464 SyntacticMatches, 0 SemanticMatches, 462 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2850 ImplicationChecksByTransitivity, 396.5s TimeCoverageRelationStatistics Valid=67510, Invalid=147322, Unknown=0, NotChecked=0, Total=214832 [2024-12-02 07:14:41,324 INFO L435 NwaCegarLoop]: 586 mSDtfsCounter, 234 mSDsluCounter, 75345 mSDsCounter, 0 mSdLazyCounter, 186814 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 75931 SdHoareTripleChecker+Invalid, 186892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 186814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:14:41,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 75931 Invalid, 186892 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [78 Valid, 186814 Invalid, 0 Unknown, 0 Unchecked, 45.2s Time] [2024-12-02 07:14:41,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 07:14:41,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:14:41,526 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:305) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 47 more [2024-12-02 07:14:41,532 INFO L158 Benchmark]: Toolchain (without parser) took 615098.43ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 116.7MB in the beginning and 123.6MB in the end (delta: -6.9MB). Peak memory consumption was 252.5MB. Max. memory is 16.1GB. [2024-12-02 07:14:41,532 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:14:41,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 149.07ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 105.9MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:14:41,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.08ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 104.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:14:41,533 INFO L158 Benchmark]: Boogie Preprocessor took 22.48ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 103.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:14:41,533 INFO L158 Benchmark]: RCFGBuilder took 208.34ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 93.0MB in the end (delta: 10.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:14:41,534 INFO L158 Benchmark]: TraceAbstraction took 614686.94ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 92.5MB in the beginning and 123.6MB in the end (delta: -31.2MB). Peak memory consumption was 227.4MB. Max. memory is 16.1GB. [2024-12-02 07:14:41,536 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 149.07ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 105.9MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.08ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 104.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.48ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 103.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 208.34ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 93.0MB in the end (delta: 10.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 614686.94ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 92.5MB in the beginning and 123.6MB in the end (delta: -31.2MB). Peak memory consumption was 227.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1 --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 2c82dcc3d917c20926ea634368e9542e23b7ae4e7817b33542bbba01403d748d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:14:43,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:14:43,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-12-02 07:14:43,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:14:43,640 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:14:43,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:14:43,669 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:14:43,669 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:14:43,670 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:14:43,670 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:14:43,670 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:14:43,670 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:14:43,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:14:43,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:14:43,671 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:14:43,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:14:43,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:14:43,671 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:14:43,671 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:14:43,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:14:43,672 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:14:43,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:14:43,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:14:43,672 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:14:43,672 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:14:43,672 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:14:43,672 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:14:43,672 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:14:43,672 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:14:43,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:14:43,673 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:14:43,673 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:14:43,673 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:14:43,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:14:43,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:14:43,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:14:43,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:14:43,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:14:43,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:14:43,674 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:14:43,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:14:43,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:14:43,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:14:43,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:14:43,674 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:14:43,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:14:43,674 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:14:43,674 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:14:43,674 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:14:43,675 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:14:43,675 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:14:43,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:14:43,675 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_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1 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 -> 2c82dcc3d917c20926ea634368e9542e23b7ae4e7817b33542bbba01403d748d [2024-12-02 07:14:43,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:14:43,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:14:44,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:14:44,003 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:14:44,003 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:14:44,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound2.c [2024-12-02 07:14:46,869 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/data/37428653e/67fdd124aa294b73876f985596e2ec64/FLAG9b5476672 [2024-12-02 07:14:47,061 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:14:47,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound2.c [2024-12-02 07:14:47,068 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/data/37428653e/67fdd124aa294b73876f985596e2ec64/FLAG9b5476672 [2024-12-02 07:14:47,444 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/data/37428653e/67fdd124aa294b73876f985596e2ec64 [2024-12-02 07:14:47,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:14:47,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:14:47,448 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:14:47,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:14:47,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:14:47,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46386e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47, skipping insertion in model container [2024-12-02 07:14:47,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,461 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:14:47,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:14:47,588 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:14:47,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:14:47,614 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:14:47,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47 WrapperNode [2024-12-02 07:14:47,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:14:47,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:14:47,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:14:47,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:14:47,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,640 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2024-12-02 07:14:47,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:14:47,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:14:47,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:14:47,641 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:14:47,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,649 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,657 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]. [2024-12-02 07:14:47,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,662 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,662 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:14:47,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:14:47,670 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:14:47,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:14:47,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (1/1) ... [2024-12-02 07:14:47,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:14:47,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:14:47,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:14:47,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:14:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:14:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:14:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:14:47,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:14:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 07:14:47,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 07:14:47,769 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:14:47,771 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:14:57,872 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-02 07:14:57,872 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:14:57,878 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:14:57,879 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:14:57,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:14:57 BoogieIcfgContainer [2024-12-02 07:14:57,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:14:57,881 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:14:57,881 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:14:57,884 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:14:57,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:14:47" (1/3) ... [2024-12-02 07:14:57,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f26fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:14:57, skipping insertion in model container [2024-12-02 07:14:57,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:47" (2/3) ... [2024-12-02 07:14:57,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f26fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:14:57, skipping insertion in model container [2024-12-02 07:14:57,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:14:57" (3/3) ... [2024-12-02 07:14:57,886 INFO L128 eAbstractionObserver]: Analyzing ICFG freire1_valuebound2.c [2024-12-02 07:14:57,896 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:14:57,897 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG freire1_valuebound2.c that has 2 procedures, 29 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2024-12-02 07:14:57,931 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:14:57,943 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;@c7b04ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:14:57,944 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-12-02 07:14:57,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 25 states have internal predecessors, (30), 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) [2024-12-02 07:14:57,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-02 07:14:57,950 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:14:57,950 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 07:14:57,950 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:14:57,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:14:57,954 INFO L85 PathProgramCache]: Analyzing trace with hash 28693835, now seen corresponding path program 1 times [2024-12-02 07:14:57,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:14:57,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939185916] [2024-12-02 07:14:57,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:14:57,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:14:57,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:14:57,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:14:57,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 07:14:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:14:58,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:14:58,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:14:58,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:14:58,065 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:14:58,066 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:14:58,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939185916] [2024-12-02 07:14:58,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939185916] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:14:58,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:14:58,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:14:58,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034202822] [2024-12-02 07:14:58,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:14:58,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:14:58,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:14:58,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:14:58,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:14:58,085 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 25 states have internal predecessors, (30), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2024-12-02 07:14:58,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:14:58,097 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2024-12-02 07:14:58,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:14:58,099 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2024-12-02 07:14:58,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:14:58,102 INFO L225 Difference]: With dead ends: 53 [2024-12-02 07:14:58,102 INFO L226 Difference]: Without dead ends: 21 [2024-12-02 07:14:58,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:14:58,106 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:14:58,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:14:58,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-12-02 07:14:58,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-12-02 07:14:58,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 18 states have internal predecessors, (19), 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) [2024-12-02 07:14:58,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2024-12-02 07:14:58,134 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 5 [2024-12-02 07:14:58,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:14:58,134 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2024-12-02 07:14:58,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2024-12-02 07:14:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2024-12-02 07:14:58,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-02 07:14:58,134 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:14:58,134 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 07:14:58,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 07:14:58,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:14:58,335 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:14:58,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:14:58,336 INFO L85 PathProgramCache]: Analyzing trace with hash 28695757, now seen corresponding path program 1 times [2024-12-02 07:14:58,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:14:58,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438877004] [2024-12-02 07:14:58,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:14:58,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:14:58,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:14:58,338 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:14:58,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 07:14:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:14:58,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:14:58,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:14:58,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:14:58,434 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:14:58,434 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:14:58,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438877004] [2024-12-02 07:14:58,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438877004] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:14:58,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:14:58,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:14:58,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749189822] [2024-12-02 07:14:58,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:14:58,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:14:58,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:14:58,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:14:58,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:14:58,435 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 3 states, 2 states have (on average 2.5) 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) [2024-12-02 07:14:59,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:15:01,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:15:02,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:15:02,923 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2024-12-02 07:15:02,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:15:02,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) 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 [2024-12-02 07:15:02,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:15:02,925 INFO L225 Difference]: With dead ends: 34 [2024-12-02 07:15:02,925 INFO L226 Difference]: Without dead ends: 27 [2024-12-02 07:15:02,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:15:02,927 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:15:02,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 21 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-12-02 07:15:02,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-12-02 07:15:02,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-12-02 07:15:02,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 23 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) [2024-12-02 07:15:02,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2024-12-02 07:15:02,935 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 5 [2024-12-02 07:15:02,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:15:02,935 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2024-12-02 07:15:02,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) 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) [2024-12-02 07:15:02,936 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2024-12-02 07:15:02,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 07:15:02,937 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:15:02,937 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:15:02,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 07:15:03,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:15:03,138 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:15:03,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:15:03,138 INFO L85 PathProgramCache]: Analyzing trace with hash 629258865, now seen corresponding path program 1 times [2024-12-02 07:15:03,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:15:03,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088729259] [2024-12-02 07:15:03,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:15:03,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:15:03,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:15:03,142 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:15:03,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 07:15:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:15:03,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 07:15:03,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:15:03,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:15:03,766 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:15:14,253 WARN L873 $PredicateComparison]: unable to prove that (bvsle (_ bv9223372034707292160 63) (let ((.cse0 ((_ sign_extend 31) (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|)))) (bvmul .cse0 .cse0))) is different from true [2024-12-02 07:15:34,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-12-02 07:15:34,609 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:15:34,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088729259] [2024-12-02 07:15:34,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088729259] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:15:34,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:15:34,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-12-02 07:15:34,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028563239] [2024-12-02 07:15:34,609 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:15:34,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:15:34,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:15:34,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:15:34,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=12, Unknown=1, NotChecked=6, Total=30 [2024-12-02 07:15:34,611 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2024-12-02 07:15:40,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:15:44,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:15:50,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:15:54,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:15:56,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:15:57,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:16:01,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:16:03,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:16:03,140 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2024-12-02 07:16:03,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:16:03,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 15 [2024-12-02 07:16:03,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:16:03,144 INFO L225 Difference]: With dead ends: 40 [2024-12-02 07:16:03,144 INFO L226 Difference]: Without dead ends: 33 [2024-12-02 07:16:03,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=11, Invalid=12, Unknown=1, NotChecked=6, Total=30 [2024-12-02 07:16:03,145 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:16:03,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 33 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 5 Unknown, 31 Unchecked, 28.4s Time] [2024-12-02 07:16:03,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-12-02 07:16:03,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-12-02 07:16:03,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.16) internal successors, (29), 28 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 07:16:03,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2024-12-02 07:16:03,152 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 15 [2024-12-02 07:16:03,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:16:03,153 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2024-12-02 07:16:03,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2024-12-02 07:16:03,153 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2024-12-02 07:16:03,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-02 07:16:03,154 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:16:03,154 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 07:16:03,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-12-02 07:16:03,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:16:03,354 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 07:16:03,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:03,355 INFO L85 PathProgramCache]: Analyzing trace with hash -207910978, now seen corresponding path program 1 times [2024-12-02 07:16:03,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:16:03,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064218949] [2024-12-02 07:16:03,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:03,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:16:03,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:16:03,357 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:16:03,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb1e7c15-1a13-45bd-94e7-32e7a117ae91/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 07:16:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:04,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 07:16:04,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:16:04,479 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:16:04,479 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:17:34,958 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 10 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:17:34,959 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:17:34,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064218949] [2024-12-02 07:17:34,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064218949] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:17:34,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:17:34,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-12-02 07:17:34,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402147770] [2024-12-02 07:17:34,959 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:17:34,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:17:34,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:17:34,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:17:34,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=27, Unknown=7, NotChecked=0, Total=56 [2024-12-02 07:17:34,961 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 07:17:40,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:17:42,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:17:46,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:17:50,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:17:55,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:17:59,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:18:04,087 WARN L851 $PredicateComparison]: unable to prove that (and (bvsle (let ((.cse0 ((_ sign_extend 31) (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|)))) (bvmul .cse0 .cse0)) (_ bv2147483647 63)) (bvsle (let ((.cse1 ((_ sign_extend 31) |c_ULTIMATE.start_main_~r~0#1|))) (bvmul .cse1 .cse1)) (_ bv2147483647 63)) (bvsle (let ((.cse2 ((_ sign_extend 31) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~r~0#1|)))) (bvmul .cse2 .cse2)) (_ bv2147483647 63))) is different from false [2024-12-02 07:18:08,224 WARN L851 $PredicateComparison]: unable to prove that (and (bvsle (let ((.cse0 ((_ sign_extend 31) (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|)))) (bvmul .cse0 .cse0)) (_ bv2147483647 63)) (bvsle (let ((.cse1 ((_ sign_extend 31) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~r~0#1|)))) (bvmul .cse1 .cse1)) (_ bv2147483647 63))) is different from false [2024-12-02 07:18:12,679 WARN L851 $PredicateComparison]: unable to prove that (and (bvsle (let ((.cse0 ((_ sign_extend 31) (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|)))) (bvmul .cse0 .cse0)) (_ bv2147483647 63)) (bvsle (let ((.cse1 ((_ sign_extend 31) |c_ULTIMATE.start_main_~r~0#1|))) (bvmul .cse1 .cse1)) (_ bv2147483647 63))) is different from false [2024-12-02 07:18:16,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:18:20,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:18:24,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:18:28,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:18:32,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:18:36,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:18:40,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:18:45,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:18:49,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:18:53,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:18:57,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:19:01,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []