./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/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_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 13f01b13f842e70fa5dc0726b8b5b83cfbe12eb21a3c45812a2355ca865a56c3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:02:49,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:02:49,609 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:02:49,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:02:49,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:02:49,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:02:49,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:02:49,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:02:49,638 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:02:49,638 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:02:49,638 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:02:49,638 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:02:49,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:02:49,639 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:02:49,639 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:02:49,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:02:49,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:02:49,639 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:02:49,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:02:49,639 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:02:49,639 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:02:49,639 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:02:49,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:02:49,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:02:49,640 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:02:49,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:02:49,640 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:02:49,640 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:02:49,640 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:02:49,640 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:02:49,640 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:02:49,640 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:02:49,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:02:49,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:02:49,640 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:02:49,640 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:02:49,641 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:02:49,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:02:49,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:02:49,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:02:49,641 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:02:49,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:02:49,641 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:02:49,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:02:49,641 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:02:49,641 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:02:49,641 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:02:49,641 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:02:49,641 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_ccc17580-b836-4966-905e-1840fcd37000/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 ! call(reach_error())) ) 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 -> 13f01b13f842e70fa5dc0726b8b5b83cfbe12eb21a3c45812a2355ca865a56c3 [2024-12-02 08:02:49,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:02:49,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:02:49,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:02:49,890 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:02:49,890 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:02:49,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound100.c [2024-12-02 08:02:52,646 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/data/5e20afa14/d9fca36fde684db8957f05316fd216a4/FLAG5f227e5d4 [2024-12-02 08:02:52,883 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:02:52,884 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound100.c [2024-12-02 08:02:52,892 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/data/5e20afa14/d9fca36fde684db8957f05316fd216a4/FLAG5f227e5d4 [2024-12-02 08:02:52,910 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/data/5e20afa14/d9fca36fde684db8957f05316fd216a4 [2024-12-02 08:02:52,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:02:52,914 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:02:52,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:02:52,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:02:52,921 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:02:52,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:02:52" (1/1) ... [2024-12-02 08:02:52,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@176954e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:52, skipping insertion in model container [2024-12-02 08:02:52,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:02:52" (1/1) ... [2024-12-02 08:02:52,938 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:02:53,104 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound100.c[597,610] [2024-12-02 08:02:53,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:02:53,136 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:02:53,148 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound100.c[597,610] [2024-12-02 08:02:53,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:02:53,172 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:02:53,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53 WrapperNode [2024-12-02 08:02:53,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:02:53,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:02:53,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:02:53,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:02:53,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,206 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2024-12-02 08:02:53,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:02:53,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:02:53,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:02:53,207 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:02:53,217 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,218 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,230 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 08:02:53,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,233 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,238 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:02:53,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:02:53,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:02:53,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:02:53,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (1/1) ... [2024-12-02 08:02:53,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:02:53,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:02:53,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:02:53,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:02:53,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:02:53,314 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:02:53,314 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:02:53,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:02:53,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:02:53,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:02:53,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 08:02:53,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 08:02:53,378 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:02:53,380 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:02:53,522 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-12-02 08:02:53,522 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:02:53,530 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:02:53,531 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:02:53,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:02:53 BoogieIcfgContainer [2024-12-02 08:02:53,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:02:53,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:02:53,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:02:53,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:02:53,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:02:52" (1/3) ... [2024-12-02 08:02:53,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e8f2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:02:53, skipping insertion in model container [2024-12-02 08:02:53,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:53" (2/3) ... [2024-12-02 08:02:53,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e8f2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:02:53, skipping insertion in model container [2024-12-02 08:02:53,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:02:53" (3/3) ... [2024-12-02 08:02:53,542 INFO L128 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound100.c [2024-12-02 08:02:53,560 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:02:53,562 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bresenham-ll_valuebound100.c that has 3 procedures, 27 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:02:53,623 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:02:53,636 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;@36078ff1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:02:53,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:02:53,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:02:53,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-02 08:02:53,649 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:02:53,650 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:02:53,651 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:02:53,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:02:53,657 INFO L85 PathProgramCache]: Analyzing trace with hash 689891435, now seen corresponding path program 1 times [2024-12-02 08:02:53,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:02:53,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147775191] [2024-12-02 08:02:53,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:02:53,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:02:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:02:53,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 08:02:53,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:02:53,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147775191] [2024-12-02 08:02:53,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147775191] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:02:53,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396942508] [2024-12-02 08:02:53,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:02:53,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:02:53,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:02:53,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:02:53,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:02:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:02:53,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:02:53,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:02:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 08:02:53,881 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:02:53,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396942508] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:02:53,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:02:53,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:02:53,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973385272] [2024-12-02 08:02:53,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:02:53,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:02:53,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:02:53,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:02:53,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:02:53,913 INFO L87 Difference]: Start difference. First operand has 27 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:02:53,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:02:53,930 INFO L93 Difference]: Finished difference Result 51 states and 68 transitions. [2024-12-02 08:02:53,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:02:53,932 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2024-12-02 08:02:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:02:53,939 INFO L225 Difference]: With dead ends: 51 [2024-12-02 08:02:53,940 INFO L226 Difference]: Without dead ends: 23 [2024-12-02 08:02:53,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 08:02:53,945 INFO L435 NwaCegarLoop]: 30 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, 30 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 08:02:53,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:02:53,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-12-02 08:02:53,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-12-02 08:02:53,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 08:02:53,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2024-12-02 08:02:53,981 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 19 [2024-12-02 08:02:53,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:02:53,981 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2024-12-02 08:02:53,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:02:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2024-12-02 08:02:53,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-02 08:02:53,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:02:53,983 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:02:53,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:02:54,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 08:02:54,184 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:02:54,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:02:54,184 INFO L85 PathProgramCache]: Analyzing trace with hash 90086127, now seen corresponding path program 1 times [2024-12-02 08:02:54,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:02:54,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027569918] [2024-12-02 08:02:54,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:02:54,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:02:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:02:54,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556227842] [2024-12-02 08:02:54,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:02:54,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:02:54,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:02:54,224 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:02:54,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:02:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:02:54,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:02:54,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:02:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:02:54,421 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:02:54,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:02:54,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027569918] [2024-12-02 08:02:54,422 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:02:54,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556227842] [2024-12-02 08:02:54,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556227842] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:02:54,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:02:54,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:02:54,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789377734] [2024-12-02 08:02:54,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:02:54,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:02:54,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:02:54,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:02:54,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:02:54,424 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:02:54,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:02:54,543 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2024-12-02 08:02:54,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:02:54,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-12-02 08:02:54,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:02:54,545 INFO L225 Difference]: With dead ends: 35 [2024-12-02 08:02:54,545 INFO L226 Difference]: Without dead ends: 33 [2024-12-02 08:02:54,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:02:54,546 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:02:54,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 78 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:02:54,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-12-02 08:02:54,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2024-12-02 08:02:54,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:02:54,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2024-12-02 08:02:54,555 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 19 [2024-12-02 08:02:54,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:02:54,557 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2024-12-02 08:02:54,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:02:54,557 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2024-12-02 08:02:54,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-02 08:02:54,558 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:02:54,558 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:02:54,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:02:54,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:02:54,759 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:02:54,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:02:54,760 INFO L85 PathProgramCache]: Analyzing trace with hash 602130797, now seen corresponding path program 1 times [2024-12-02 08:02:54,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:02:54,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534736158] [2024-12-02 08:02:54,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:02:54,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:02:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:02:55,014 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 08:02:55,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:02:55,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534736158] [2024-12-02 08:02:55,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534736158] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:02:55,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270722053] [2024-12-02 08:02:55,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:02:55,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:02:55,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:02:55,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:02:55,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:02:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:02:55,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:02:55,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:02:55,204 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:02:55,204 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:02:55,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270722053] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:02:55,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:02:55,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-12-02 08:02:55,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852958823] [2024-12-02 08:02:55,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:02:55,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:02:55,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:02:55,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:02:55,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:02:55,206 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 08:02:55,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:02:55,306 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2024-12-02 08:02:55,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:02:55,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2024-12-02 08:02:55,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:02:55,308 INFO L225 Difference]: With dead ends: 39 [2024-12-02 08:02:55,308 INFO L226 Difference]: Without dead ends: 31 [2024-12-02 08:02:55,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:02:55,309 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:02:55,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 78 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:02:55,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-12-02 08:02:55,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2024-12-02 08:02:55,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:02:55,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2024-12-02 08:02:55,316 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 26 [2024-12-02 08:02:55,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:02:55,316 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2024-12-02 08:02:55,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 08:02:55,316 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2024-12-02 08:02:55,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 08:02:55,317 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:02:55,317 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:02:55,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:02:55,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:02:55,518 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:02:55,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:02:55,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1522625704, now seen corresponding path program 1 times [2024-12-02 08:02:55,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:02:55,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787856548] [2024-12-02 08:02:55,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:02:55,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:02:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:02:55,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [320002605] [2024-12-02 08:02:55,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:02:55,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:02:55,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:02:55,544 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:02:55,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:02:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:02:55,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 08:02:55,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:02:55,826 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:02:55,827 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:02:56,079 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:02:56,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:02:56,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787856548] [2024-12-02 08:02:56,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:02:56,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320002605] [2024-12-02 08:02:56,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320002605] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:02:56,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:02:56,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2024-12-02 08:02:56,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080359753] [2024-12-02 08:02:56,080 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:02:56,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 08:02:56,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:02:56,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 08:02:56,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:02:56,082 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 17 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 08:02:56,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:02:56,460 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2024-12-02 08:02:56,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 08:02:56,461 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2024-12-02 08:02:56,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:02:56,462 INFO L225 Difference]: With dead ends: 45 [2024-12-02 08:02:56,462 INFO L226 Difference]: Without dead ends: 41 [2024-12-02 08:02:56,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:02:56,463 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:02:56,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 173 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:02:56,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-12-02 08:02:56,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 32. [2024-12-02 08:02:56,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:02:56,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2024-12-02 08:02:56,472 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 28 [2024-12-02 08:02:56,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:02:56,473 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2024-12-02 08:02:56,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 08:02:56,473 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2024-12-02 08:02:56,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-02 08:02:56,474 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:02:56,474 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:02:56,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:02:56,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:02:56,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:02:56,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:02:56,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2046310628, now seen corresponding path program 1 times [2024-12-02 08:02:56,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:02:56,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108153023] [2024-12-02 08:02:56,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:02:56,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:02:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:02:56,927 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 08:02:56,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:02:56,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108153023] [2024-12-02 08:02:56,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108153023] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:02:56,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637305872] [2024-12-02 08:02:56,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:02:56,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:02:56,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:02:56,932 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:02:56,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:02:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:02:56,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 08:02:56,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:02:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 08:02:57,462 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:02:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 08:02:57,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637305872] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:02:57,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:02:57,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 11] total 27 [2024-12-02 08:02:57,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716801819] [2024-12-02 08:02:57,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:02:57,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 08:02:57,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:02:57,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 08:02:57,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2024-12-02 08:02:57,869 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 27 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 10 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2024-12-02 08:02:59,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:02:59,020 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2024-12-02 08:02:59,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 08:02:59,021 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 10 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) Word has length 35 [2024-12-02 08:02:59,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:02:59,021 INFO L225 Difference]: With dead ends: 48 [2024-12-02 08:02:59,021 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 08:02:59,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=388, Invalid=1682, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 08:02:59,023 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 45 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:02:59,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 123 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:02:59,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 08:02:59,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 08:02:59,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:02:59,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 08:02:59,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2024-12-02 08:02:59,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:02:59,025 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:02:59,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 10 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2024-12-02 08:02:59,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 08:02:59,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 08:02:59,027 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:02:59,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:02:59,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:02:59,231 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 08:02:59,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 08:02:59,566 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:02:59,578 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 08:02:59,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:02:59 BoogieIcfgContainer [2024-12-02 08:02:59,582 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:02:59,583 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:02:59,583 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:02:59,583 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:02:59,583 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:02:53" (3/4) ... [2024-12-02 08:02:59,585 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 08:02:59,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 08:02:59,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-02 08:02:59,593 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-02 08:02:59,594 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 08:02:59,594 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 08:02:59,594 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 08:02:59,659 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 08:02:59,660 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 08:02:59,660 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:02:59,661 INFO L158 Benchmark]: Toolchain (without parser) took 6746.87ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 56.1MB in the end (delta: 37.2MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2024-12-02 08:02:59,661 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:02:59,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.72ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 82.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:02:59,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.48ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:02:59,662 INFO L158 Benchmark]: Boogie Preprocessor took 34.50ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.6MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:02:59,662 INFO L158 Benchmark]: RCFGBuilder took 289.07ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 69.0MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:02:59,663 INFO L158 Benchmark]: TraceAbstraction took 6048.20ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 61.1MB in the end (delta: 7.4MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2024-12-02 08:02:59,663 INFO L158 Benchmark]: Witness Printer took 77.37ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 56.1MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:02:59,665 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.72ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 82.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.48ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.50ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.6MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 289.07ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 69.0MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6048.20ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 61.1MB in the end (delta: 7.4MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Witness Printer took 77.37ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 56.1MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 482 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 392 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 585 IncrementalHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 90 mSDtfsCounter, 585 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 231 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=4, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 260 ConstructedInterpolants, 3 QuantifiedInterpolants, 1137 SizeOfPredicates, 13 NumberOfNonLiveVariables, 376 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 64/85 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((Y <= 100) && ((((((__int128) X * y) * 2) + X) + v) == ((((__int128) Y * x) * 2) + ((long long) 2 * Y)))) && (0 <= Y)) && ((((__int128) X * y) + y) == ((__int128) x * y))) && (X <= 100)) && (0 <= X)) || (((((Y <= 100) && ((((((__int128) X * y) * 2) + X) + v) == ((((__int128) Y * x) * 2) + ((long long) 2 * Y)))) && (0 <= Y)) && (X <= 100)) && (0 <= X))) RESULT: Ultimate proved your program to be correct! [2024-12-02 08:02:59,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc17580-b836-4966-905e-1840fcd37000/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE