./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC --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 bd18df5335c166ad57722e76e66445ba6bc9802d8c865b1ba91e68124487e889 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:37:24,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:37:24,305 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:37:24,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:37:24,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:37:24,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:37:24,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:37:24,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:37:24,360 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:37:24,360 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:37:24,361 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:37:24,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:37:24,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:37:24,362 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:37:24,362 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:37:24,363 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:37:24,363 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:37:24,363 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:37:24,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:37:24,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:37:24,364 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:37:24,364 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:37:24,364 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:37:24,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:37:24,364 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:37:24,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:37:24,364 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:37:24,364 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:37:24,364 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:37:24,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:37:24,365 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:37:24,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:37:24,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:37:24,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:37:24,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:37:24,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:37:24,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:37:24,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:37:24,366 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:37:24,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:37:24,366 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:37:24,366 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:37:24,366 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:37:24,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:37:24,367 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:37:24,367 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:37:24,367 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:37:24,367 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:37:24,367 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_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC 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 -> bd18df5335c166ad57722e76e66445ba6bc9802d8c865b1ba91e68124487e889 [2024-11-23 23:37:24,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:37:24,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:37:24,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:37:24,727 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:37:24,728 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:37:24,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i [2024-11-23 23:37:27,820 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/data/6c10ae589/90babc78287c4e5bb65addeac33f97af/FLAG2b078ad1e [2024-11-23 23:37:28,195 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:37:28,196 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i [2024-11-23 23:37:28,211 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/data/6c10ae589/90babc78287c4e5bb65addeac33f97af/FLAG2b078ad1e [2024-11-23 23:37:28,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/data/6c10ae589/90babc78287c4e5bb65addeac33f97af [2024-11-23 23:37:28,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:37:28,244 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:37:28,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:37:28,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:37:28,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:37:28,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93f4db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28, skipping insertion in model container [2024-11-23 23:37:28,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:37:28,479 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_e1faff94-2e09-467c-91c9-2ae80ac8a794/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i[915,928] [2024-11-23 23:37:28,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:37:28,576 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:37:28,591 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_e1faff94-2e09-467c-91c9-2ae80ac8a794/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i[915,928] [2024-11-23 23:37:28,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:37:28,662 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:37:28,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28 WrapperNode [2024-11-23 23:37:28,665 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:37:28,666 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:37:28,666 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:37:28,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:37:28,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,743 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 140 [2024-11-23 23:37:28,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:37:28,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:37:28,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:37:28,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:37:28,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,790 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]. [2024-11-23 23:37:28,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,790 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,799 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,805 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:37:28,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:37:28,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:37:28,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:37:28,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (1/1) ... [2024-11-23 23:37:28,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:37:28,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:37:28,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:37:28,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:37:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:37:28,896 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:37:28,897 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:37:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:37:28,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:37:28,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:37:28,979 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:37:28,980 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:37:29,358 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-23 23:37:29,359 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:37:29,372 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:37:29,372 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 23:37:29,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:37:29 BoogieIcfgContainer [2024-11-23 23:37:29,373 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:37:29,375 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:37:29,375 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:37:29,382 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:37:29,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:37:28" (1/3) ... [2024-11-23 23:37:29,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a45e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:37:29, skipping insertion in model container [2024-11-23 23:37:29,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:28" (2/3) ... [2024-11-23 23:37:29,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a45e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:37:29, skipping insertion in model container [2024-11-23 23:37:29,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:37:29" (3/3) ... [2024-11-23 23:37:29,387 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-44.i [2024-11-23 23:37:29,411 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:37:29,413 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-44.i that has 2 procedures, 64 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:37:29,512 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:37:29,533 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;@3f42dc5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:37:29,533 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:37:29,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 40 states have (on average 1.3) internal successors, (52), 41 states have internal predecessors, (52), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-23 23:37:29,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-23 23:37:29,560 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:37:29,561 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 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] [2024-11-23 23:37:29,562 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:37:29,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:29,571 INFO L85 PathProgramCache]: Analyzing trace with hash 277709328, now seen corresponding path program 1 times [2024-11-23 23:37:29,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:29,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956736732] [2024-11-23 23:37:29,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:29,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:29,978 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-11-23 23:37:29,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:37:29,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956736732] [2024-11-23 23:37:29,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956736732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:37:29,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564210645] [2024-11-23 23:37:29,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:29,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:37:29,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:37:29,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:37:29,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:37:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:37:30,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:37:30,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:37:30,190 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-11-23 23:37:30,191 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:37:30,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564210645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:37:30,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:37:30,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:37:30,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114453604] [2024-11-23 23:37:30,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:37:30,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:37:30,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:37:30,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:37:30,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:37:30,228 INFO L87 Difference]: Start difference. First operand has 64 states, 40 states have (on average 1.3) internal successors, (52), 41 states have internal predecessors, (52), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 23:37:30,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:37:30,271 INFO L93 Difference]: Finished difference Result 125 states and 206 transitions. [2024-11-23 23:37:30,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:37:30,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 133 [2024-11-23 23:37:30,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:37:30,278 INFO L225 Difference]: With dead ends: 125 [2024-11-23 23:37:30,278 INFO L226 Difference]: Without dead ends: 60 [2024-11-23 23:37:30,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:37:30,286 INFO L435 NwaCegarLoop]: 91 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, 91 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 [2024-11-23 23:37:30,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:37:30,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-23 23:37:30,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-23 23:37:30,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 37 states have internal predecessors, (45), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-23 23:37:30,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 87 transitions. [2024-11-23 23:37:30,329 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 87 transitions. Word has length 133 [2024-11-23 23:37:30,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:37:30,329 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 87 transitions. [2024-11-23 23:37:30,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 23:37:30,330 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 87 transitions. [2024-11-23 23:37:30,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-23 23:37:30,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:37:30,340 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 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] [2024-11-23 23:37:30,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:37:30,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faff94-2e09-467c-91c9-2ae80ac8a794/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:37:30,544 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:37:30,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:37:30,545 INFO L85 PathProgramCache]: Analyzing trace with hash 193214610, now seen corresponding path program 1 times [2024-11-23 23:37:30,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:37:30,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821008417] [2024-11-23 23:37:30,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:37:30,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:37:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:39:36,906 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-23 23:39:36,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:39:36,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821008417] [2024-11-23 23:39:36,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821008417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:39:36,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:39:36,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:39:36,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40225985] [2024-11-23 23:39:36,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:39:36,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:39:36,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:39:36,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:39:36,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:39:36,912 INFO L87 Difference]: Start difference. First operand 60 states and 87 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-23 23:39:38,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:39:38,309 INFO L93 Difference]: Finished difference Result 152 states and 216 transitions. [2024-11-23 23:39:38,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:39:38,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 133 [2024-11-23 23:39:38,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:39:38,313 INFO L225 Difference]: With dead ends: 152 [2024-11-23 23:39:38,313 INFO L226 Difference]: Without dead ends: 95 [2024-11-23 23:39:38,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:39:38,315 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 61 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:39:38,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 363 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:39:38,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-23 23:39:38,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 82. [2024-11-23 23:39:38,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 51 states have (on average 1.196078431372549) internal successors, (61), 52 states have internal predecessors, (61), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 23:39:38,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2024-11-23 23:39:38,348 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 133 [2024-11-23 23:39:38,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:39:38,349 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2024-11-23 23:39:38,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-23 23:39:38,350 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2024-11-23 23:39:38,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-23 23:39:38,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:39:38,352 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 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] [2024-11-23 23:39:38,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:39:38,353 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:39:38,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:39:38,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1166826303, now seen corresponding path program 1 times [2024-11-23 23:39:38,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:39:38,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250487229] [2024-11-23 23:39:38,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:39:38,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:39:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:41:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-23 23:41:03,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:41:03,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250487229] [2024-11-23 23:41:03,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250487229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:41:03,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:41:03,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:41:03,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574061278] [2024-11-23 23:41:03,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:41:03,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:41:03,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:41:03,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:41:03,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:41:03,958 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-23 23:41:05,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:41:05,666 INFO L93 Difference]: Finished difference Result 168 states and 235 transitions. [2024-11-23 23:41:05,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:41:05,667 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 134 [2024-11-23 23:41:05,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:41:05,672 INFO L225 Difference]: With dead ends: 168 [2024-11-23 23:41:05,673 INFO L226 Difference]: Without dead ends: 101 [2024-11-23 23:41:05,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:41:05,674 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 60 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:41:05,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 435 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:41:05,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-23 23:41:05,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 82. [2024-11-23 23:41:05,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 51 states have (on average 1.196078431372549) internal successors, (61), 52 states have internal predecessors, (61), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 23:41:05,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2024-11-23 23:41:05,705 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 134 [2024-11-23 23:41:05,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:41:05,705 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2024-11-23 23:41:05,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-23 23:41:05,706 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2024-11-23 23:41:05,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-23 23:41:05,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:41:05,708 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 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] [2024-11-23 23:41:05,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:41:05,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:41:05,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:41:05,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1559853313, now seen corresponding path program 1 times [2024-11-23 23:41:05,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:41:05,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468798219] [2024-11-23 23:41:05,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:41:05,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:41:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:42:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-23 23:42:46,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:42:46,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468798219] [2024-11-23 23:42:46,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468798219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:42:46,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:42:46,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:42:46,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7315295] [2024-11-23 23:42:46,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:42:46,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:42:46,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:42:46,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:42:46,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:42:46,386 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-23 23:42:49,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:42:49,648 INFO L93 Difference]: Finished difference Result 169 states and 234 transitions. [2024-11-23 23:42:49,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:42:49,651 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 134 [2024-11-23 23:42:49,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:42:49,656 INFO L225 Difference]: With dead ends: 169 [2024-11-23 23:42:49,658 INFO L226 Difference]: Without dead ends: 102 [2024-11-23 23:42:49,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:42:49,660 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 66 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:42:49,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 484 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 23:42:49,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-23 23:42:49,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2024-11-23 23:42:49,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.171875) internal successors, (75), 66 states have internal predecessors, (75), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-23 23:42:49,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 135 transitions. [2024-11-23 23:42:49,708 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 135 transitions. Word has length 134 [2024-11-23 23:42:49,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:42:49,709 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 135 transitions. [2024-11-23 23:42:49,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-23 23:42:49,710 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 135 transitions. [2024-11-23 23:42:49,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-23 23:42:49,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:42:49,712 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 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] [2024-11-23 23:42:49,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:42:49,712 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:42:49,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:42:49,713 INFO L85 PathProgramCache]: Analyzing trace with hash 447190285, now seen corresponding path program 1 times [2024-11-23 23:42:49,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:42:49,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305506805] [2024-11-23 23:42:49,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:42:49,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:42:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:43:04,490 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:43:16,526 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:43:24,536 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:43:32,553 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:43:57,276 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:44:05,294 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:44:14,614 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:44:35,430 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:44:53,587 WARN L286 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:45:09,796 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:45:25,855 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:45:41,896 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:45:54,248 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse19 (div c_~var_1_8~0 256)) (.cse20 (* c_~var_1_1~0 c_~var_1_8~0))) (let ((.cse16 (+ .cse20 1)) (.cse15 (* (* c_~var_1_1~0 .cse19) 256)) (.cse18 (* (- 1) c_~var_1_14~0)) (.cse17 (+ (* c_~var_1_1~0 (- 256) .cse19) .cse20))) (let ((.cse11 (<= 0 c_~var_1_14~0)) (.cse6 (div .cse17 0)) (.cse7 (= c_~var_1_14~0 0)) (.cse1 (<= (+ c_~var_1_14~0 1) 0)) (.cse5 (= 0 (mod .cse17 c_~var_1_14~0))) (.cse9 (div .cse17 c_~var_1_14~0)) (.cse10 (= (mod .cse17 .cse18) 0)) (.cse4 (<= .cse16 .cse15)) (.cse2 (div .cse17 .cse18))) (and (= (mod c_~var_1_17~0 4294967296) (mod c_~var_1_7~0 256)) (<= 0 c_~var_1_17~0) (let ((.cse0 (and .cse11 (<= c_~var_1_1~0 .cse9))) (.cse3 (not .cse10))) (or .cse0 (and .cse1 (<= c_~var_1_1~0 .cse2)) (and .cse3 .cse4 (or .cse0 (and .cse1 (<= c_~var_1_1~0 (+ .cse2 1))))) (and (not .cse5) (let ((.cse8 (and (<= c_~var_1_1~0 (+ .cse9 1)) (<= 1 c_~var_1_14~0)))) (or (and (or (and (<= c_~var_1_1~0 (+ .cse6 1)) .cse7) .cse8) .cse3) .cse8)) .cse4))) (let ((.cse13 (< .cse2 c_~var_1_1~0))) (or (let ((.cse14 (< .cse15 .cse16))) (and (let ((.cse12 (< .cse9 (+ c_~var_1_1~0 1)))) (or (and (or .cse12 .cse13) .cse4) (and (or .cse10 .cse14) (or (and .cse11 (or .cse12 (and (<= .cse6 c_~var_1_1~0) .cse7))) (and (<= .cse2 c_~var_1_1~0) .cse1))))) (or .cse5 .cse14))) (and (or (< .cse9 c_~var_1_1~0) (and .cse10 (= .cse2 c_~var_1_1~0)) .cse13) .cse4))))))) is different from false [2024-11-23 23:46:15,636 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:46:33,004 WARN L286 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:46:45,037 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:46:57,364 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:47:05,380 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:47:17,592 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:47:29,636 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:47:42,066 WARN L286 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:48:01,248 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:48:09,263 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:50:14,629 WARN L286 SmtUtils]: Spent 2.00m on a formula simplification. DAG size of input: 89 DAG size of output: 75 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 23:50:14,666 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-23 23:50:14,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:50:14,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305506805] [2024-11-23 23:50:14,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305506805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:50:14,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:50:14,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:50:14,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352042592] [2024-11-23 23:50:14,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:50:14,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:50:14,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:50:14,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:50:14,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=44, Unknown=1, NotChecked=12, Total=72 [2024-11-23 23:50:14,668 INFO L87 Difference]: Start difference. First operand 98 states and 135 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-23 23:50:18,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:50:20,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:50:23,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:50:23,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:50:23,689 INFO L93 Difference]: Finished difference Result 118 states and 160 transitions. [2024-11-23 23:50:23,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:50:23,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 135 [2024-11-23 23:50:23,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:50:23,693 INFO L225 Difference]: With dead ends: 118 [2024-11-23 23:50:23,693 INFO L226 Difference]: Without dead ends: 116 [2024-11-23 23:50:23,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 124.3s TimeCoverageRelationStatistics Valid=15, Invalid=44, Unknown=1, NotChecked=12, Total=72 [2024-11-23 23:50:23,694 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:50:23,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 573 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 56 Unchecked, 9.0s Time] [2024-11-23 23:50:23,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-23 23:50:23,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-23 23:50:23,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 84 states have internal predecessors, (97), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-23 23:50:23,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 157 transitions. [2024-11-23 23:50:23,733 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 157 transitions. Word has length 135 [2024-11-23 23:50:23,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:50:23,733 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 157 transitions. [2024-11-23 23:50:23,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-23 23:50:23,734 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 157 transitions. [2024-11-23 23:50:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-23 23:50:23,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:50:23,736 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 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] [2024-11-23 23:50:23,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:50:23,737 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:50:23,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:50:23,737 INFO L85 PathProgramCache]: Analyzing trace with hash -232868085, now seen corresponding path program 1 times [2024-11-23 23:50:23,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:50:23,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891321213] [2024-11-23 23:50:23,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:50:23,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:50:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:50:37,294 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:50:45,307 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:50:53,333 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:51:01,350 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:51:11,646 WARN L286 SmtUtils]: Spent 6.25s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:51:20,231 WARN L286 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:51:42,997 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:51:51,016 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:51:59,027 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:52:08,369 WARN L286 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:52:16,411 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:52:24,421 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:52:32,452 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)