./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-82.i --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_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-82.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB --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 94517564427e872c49cfdf1d666acd8c5b1d1d7f855fe0e11d067a0d3a0e2e28 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:09:15,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:09:15,692 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:09:15,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:09:15,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:09:15,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:09:15,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:09:15,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:09:15,740 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:09:15,740 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:09:15,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:09:15,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:09:15,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:09:15,742 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:09:15,742 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:09:15,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:09:15,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:09:15,743 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:09:15,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:09:15,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:09:15,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:09:15,743 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:09:15,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:09:15,743 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:09:15,744 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:09:15,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:09:15,744 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:09:15,744 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:09:15,744 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:09:15,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:09:15,745 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:09:15,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:09:15,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:09:15,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:09:15,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:09:15,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:09:15,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:09:15,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:09:15,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:09:15,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:09:15,747 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:09:15,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:09:15,747 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:09:15,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:09:15,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:09:15,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:09:15,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:09:15,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:09:15,748 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_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 94517564427e872c49cfdf1d666acd8c5b1d1d7f855fe0e11d067a0d3a0e2e28 [2024-11-27 20:09:16,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:09:16,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:09:16,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:09:16,151 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:09:16,151 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:09:16,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-82.i [2024-11-27 20:09:19,210 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/data/9dd4faac7/2f54cc925693414cbe4d48f6faf03744/FLAG30587ad86 [2024-11-27 20:09:19,471 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:09:19,472 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-82.i [2024-11-27 20:09:19,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/data/9dd4faac7/2f54cc925693414cbe4d48f6faf03744/FLAG30587ad86 [2024-11-27 20:09:19,494 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/data/9dd4faac7/2f54cc925693414cbe4d48f6faf03744 [2024-11-27 20:09:19,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:09:19,499 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:09:19,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:09:19,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:09:19,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:09:19,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b50b7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19, skipping insertion in model container [2024-11-27 20:09:19,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,527 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:09:19,730 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_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-82.i[915,928] [2024-11-27 20:09:19,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:09:19,786 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:09:19,801 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_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-82.i[915,928] [2024-11-27 20:09:19,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:09:19,867 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:09:19,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19 WrapperNode [2024-11-27 20:09:19,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:09:19,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:09:19,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:09:19,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:09:19,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,937 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2024-11-27 20:09:19,937 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:09:19,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:09:19,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:09:19,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:09:19,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,947 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,960 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:09:19,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,966 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,972 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,979 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:19,989 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:09:19,994 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:09:19,994 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:09:19,994 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:09:19,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (1/1) ... [2024-11-27 20:09:20,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:09:20,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:20,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:09:20,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:09:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:09:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:09:20,087 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:09:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:09:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:09:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:09:20,192 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:09:20,194 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:09:20,542 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-27 20:09:20,543 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:09:20,559 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:09:20,561 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:09:20,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:09:20 BoogieIcfgContainer [2024-11-27 20:09:20,562 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:09:20,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:09:20,567 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:09:20,574 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:09:20,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:09:19" (1/3) ... [2024-11-27 20:09:20,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38dc662f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:09:20, skipping insertion in model container [2024-11-27 20:09:20,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:19" (2/3) ... [2024-11-27 20:09:20,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38dc662f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:09:20, skipping insertion in model container [2024-11-27 20:09:20,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:09:20" (3/3) ... [2024-11-27 20:09:20,581 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-82.i [2024-11-27 20:09:20,608 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:09:20,610 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-82.i that has 2 procedures, 46 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:09:20,695 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:09:20,713 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;@7c598080, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:09:20,716 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:09:20,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 38 states have internal predecessors, (53), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:09:20,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 20:09:20,732 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:20,732 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:20,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:09:20,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:20,741 INFO L85 PathProgramCache]: Analyzing trace with hash -744138573, now seen corresponding path program 1 times [2024-11-27 20:09:20,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:20,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268590203] [2024-11-27 20:09:20,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:20,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-27 20:09:20,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:20,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268590203] [2024-11-27 20:09:20,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268590203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:20,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260556851] [2024-11-27 20:09:20,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:20,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:20,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:21,001 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:21,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:09:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:21,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:09:21,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:21,212 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-27 20:09:21,216 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:09:21,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260556851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:21,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:09:21,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:09:21,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510879924] [2024-11-27 20:09:21,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:21,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:09:21,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:21,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:09:21,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:09:21,289 INFO L87 Difference]: Start difference. First operand has 46 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 38 states have internal predecessors, (53), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 20:09:21,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:21,323 INFO L93 Difference]: Finished difference Result 85 states and 127 transitions. [2024-11-27 20:09:21,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:09:21,327 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-11-27 20:09:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:21,335 INFO L225 Difference]: With dead ends: 85 [2024-11-27 20:09:21,335 INFO L226 Difference]: Without dead ends: 38 [2024-11-27 20:09:21,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:09:21,348 INFO L435 NwaCegarLoop]: 54 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, 54 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:21,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:09:21,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-27 20:09:21,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-27 20:09:21,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:09:21,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2024-11-27 20:09:21,397 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 51 [2024-11-27 20:09:21,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:21,398 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2024-11-27 20:09:21,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 20:09:21,399 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2024-11-27 20:09:21,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 20:09:21,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:21,401 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:21,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:09:21,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:09:21,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:09:21,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:21,607 INFO L85 PathProgramCache]: Analyzing trace with hash -136636753, now seen corresponding path program 1 times [2024-11-27 20:09:21,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:21,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491488591] [2024-11-27 20:09:21,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:21,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:22,054 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:09:22,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:22,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491488591] [2024-11-27 20:09:22,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491488591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:22,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:22,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:09:22,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432805676] [2024-11-27 20:09:22,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:22,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:09:22,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:22,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:09:22,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:09:22,057 INFO L87 Difference]: Start difference. First operand 38 states and 50 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:09:22,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:22,156 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2024-11-27 20:09:22,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:09:22,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 51 [2024-11-27 20:09:22,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:22,158 INFO L225 Difference]: With dead ends: 90 [2024-11-27 20:09:22,158 INFO L226 Difference]: Without dead ends: 55 [2024-11-27 20:09:22,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:09:22,160 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 18 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:22,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 125 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:22,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-27 20:09:22,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2024-11-27 20:09:22,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:09:22,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2024-11-27 20:09:22,177 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 51 [2024-11-27 20:09:22,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:22,178 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2024-11-27 20:09:22,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:09:22,178 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2024-11-27 20:09:22,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-27 20:09:22,181 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:22,181 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:22,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:09:22,182 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:09:22,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:22,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1001913450, now seen corresponding path program 1 times [2024-11-27 20:09:22,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:22,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976459488] [2024-11-27 20:09:22,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:22,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:23,237 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:09:23,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:23,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976459488] [2024-11-27 20:09:23,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976459488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:23,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:23,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:09:23,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056575410] [2024-11-27 20:09:23,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:23,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:09:23,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:23,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:09:23,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:09:23,240 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:09:23,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:23,546 INFO L93 Difference]: Finished difference Result 80 states and 99 transitions. [2024-11-27 20:09:23,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:09:23,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 53 [2024-11-27 20:09:23,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:23,549 INFO L225 Difference]: With dead ends: 80 [2024-11-27 20:09:23,549 INFO L226 Difference]: Without dead ends: 78 [2024-11-27 20:09:23,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:09:23,551 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 53 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:23,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 262 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:09:23,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-27 20:09:23,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 62. [2024-11-27 20:09:23,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.183673469387755) internal successors, (58), 50 states have internal predecessors, (58), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:09:23,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2024-11-27 20:09:23,577 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 53 [2024-11-27 20:09:23,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:23,577 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2024-11-27 20:09:23,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:09:23,578 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2024-11-27 20:09:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-27 20:09:23,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:23,581 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:23,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:09:23,582 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:09:23,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:23,583 INFO L85 PathProgramCache]: Analyzing trace with hash -122184251, now seen corresponding path program 1 times [2024-11-27 20:09:23,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:23,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467214819] [2024-11-27 20:09:23,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:23,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:24,364 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:09:24,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:24,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467214819] [2024-11-27 20:09:24,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467214819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:24,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:24,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:09:24,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115748080] [2024-11-27 20:09:24,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:24,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:09:24,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:24,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:09:24,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:09:24,368 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:09:24,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:24,514 INFO L93 Difference]: Finished difference Result 140 states and 175 transitions. [2024-11-27 20:09:24,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:09:24,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 54 [2024-11-27 20:09:24,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:24,521 INFO L225 Difference]: With dead ends: 140 [2024-11-27 20:09:24,521 INFO L226 Difference]: Without dead ends: 90 [2024-11-27 20:09:24,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:09:24,523 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 29 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:24,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 140 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:24,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-27 20:09:24,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 66. [2024-11-27 20:09:24,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 54 states have internal predecessors, (64), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:09:24,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2024-11-27 20:09:24,535 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 54 [2024-11-27 20:09:24,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:24,537 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2024-11-27 20:09:24,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:09:24,538 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2024-11-27 20:09:24,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-27 20:09:24,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:24,539 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:24,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:09:24,539 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:09:24,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:24,540 INFO L85 PathProgramCache]: Analyzing trace with hash -708990265, now seen corresponding path program 1 times [2024-11-27 20:09:24,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:24,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103625259] [2024-11-27 20:09:24,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:24,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:24,881 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:09:24,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:24,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103625259] [2024-11-27 20:09:24,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103625259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:24,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:24,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:09:24,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000589263] [2024-11-27 20:09:24,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:24,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:09:24,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:24,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:09:24,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:09:24,884 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:09:25,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:25,129 INFO L93 Difference]: Finished difference Result 144 states and 180 transitions. [2024-11-27 20:09:25,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:09:25,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 54 [2024-11-27 20:09:25,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:25,132 INFO L225 Difference]: With dead ends: 144 [2024-11-27 20:09:25,132 INFO L226 Difference]: Without dead ends: 90 [2024-11-27 20:09:25,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:09:25,133 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 39 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:25,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 183 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:25,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-27 20:09:25,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 76. [2024-11-27 20:09:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 60 states have internal predecessors, (71), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:09:25,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 95 transitions. [2024-11-27 20:09:25,169 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 95 transitions. Word has length 54 [2024-11-27 20:09:25,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:25,169 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 95 transitions. [2024-11-27 20:09:25,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:09:25,170 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 95 transitions. [2024-11-27 20:09:25,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 20:09:25,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:25,171 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:25,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:09:25,171 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:09:25,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:25,172 INFO L85 PathProgramCache]: Analyzing trace with hash 576261661, now seen corresponding path program 1 times [2024-11-27 20:09:25,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:25,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336040222] [2024-11-27 20:09:25,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:25,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:25,323 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:09:25,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:25,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336040222] [2024-11-27 20:09:25,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336040222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:25,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105628665] [2024-11-27 20:09:25,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:25,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:25,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:25,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:25,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:09:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:25,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:09:25,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-27 20:09:25,551 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:09:25,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105628665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:25,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:09:25,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-27 20:09:25,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634952638] [2024-11-27 20:09:25,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:25,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:09:25,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:25,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:09:25,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:09:25,553 INFO L87 Difference]: Start difference. First operand 76 states and 95 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 20:09:25,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:25,586 INFO L93 Difference]: Finished difference Result 89 states and 110 transitions. [2024-11-27 20:09:25,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:09:25,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2024-11-27 20:09:25,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:25,587 INFO L225 Difference]: With dead ends: 89 [2024-11-27 20:09:25,588 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:09:25,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:09:25,589 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 3 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:25,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 70 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:09:25,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:09:25,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:09:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:25,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:09:25,590 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2024-11-27 20:09:25,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:25,590 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:09:25,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 20:09:25,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:09:25,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:09:25,594 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:09:25,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:09:25,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-27 20:09:25,799 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-27 20:09:25,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:09:25,926 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:09:25,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:09:25 BoogieIcfgContainer [2024-11-27 20:09:25,949 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:09:25,950 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:09:25,950 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:09:25,950 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:09:25,951 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:09:20" (3/4) ... [2024-11-27 20:09:25,954 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:09:25,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-27 20:09:25,964 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-27 20:09:25,964 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 20:09:25,964 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 20:09:25,964 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:09:26,074 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:09:26,074 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:09:26,074 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:09:26,075 INFO L158 Benchmark]: Toolchain (without parser) took 6576.56ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 36.2MB in the end (delta: 56.5MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2024-11-27 20:09:26,075 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:09:26,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.81ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.9MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:09:26,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.82ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 77.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:09:26,076 INFO L158 Benchmark]: Boogie Preprocessor took 55.48ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 75.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:09:26,077 INFO L158 Benchmark]: RCFGBuilder took 568.39ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 60.5MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:09:26,077 INFO L158 Benchmark]: TraceAbstraction took 5382.93ms. Allocated memory is still 117.4MB. Free memory was 59.7MB in the beginning and 41.1MB in the end (delta: 18.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-11-27 20:09:26,077 INFO L158 Benchmark]: Witness Printer took 124.29ms. Allocated memory is still 117.4MB. Free memory was 41.1MB in the beginning and 36.2MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:09:26,079 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.81ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.9MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.82ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 77.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.48ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 75.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 568.39ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 60.5MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5382.93ms. Allocated memory is still 117.4MB. Free memory was 59.7MB in the beginning and 41.1MB in the end (delta: 18.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 124.29ms. Allocated memory is still 117.4MB. Free memory was 41.1MB in the beginning and 36.2MB 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.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: 19]: 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 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 6, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 142 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 142 mSDsluCounter, 834 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 535 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 215 IncrementalHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 299 mSDtfsCounter, 215 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 67 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 522 NumberOfCodeBlocks, 522 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 514 ConstructedInterpolants, 0 QuantifiedInterpolants, 904 SizeOfPredicates, 0 NumberOfNonLiveVariables, 364 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 927/938 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: 82]: Loop Invariant Derived loop invariant: (((var_1_9 == var_1_5) && (1 <= k_loop)) || (((((long long) last_1_var_1_10 + 10) <= 0) && (((long long) var_1_10 + 10) <= 0)) && (0 <= k_loop))) RESULT: Ultimate proved your program to be correct! [2024-11-27 20:09:26,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba1a717d-19b9-4ad8-81fe-3d835edb6e14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE