./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-86.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_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/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_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-86.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/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_2cd02ef2-ff1e-487c-b3bb-4606b2214660/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 bfef9e0cd5324afc9386a78468bea49ee605e5037c2d685b322567d67d524bb4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:07:11,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:07:11,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:07:11,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:07:11,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:07:11,741 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:07:11,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:07:11,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:07:11,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:07:11,743 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:07:11,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:07:11,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:07:11,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:07:11,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:07:11,745 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:07:11,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:07:11,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:07:11,746 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:07:11,746 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:07:11,746 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:07:11,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:07:11,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:07:11,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:07:11,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:07:11,746 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:07:11,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:07:11,746 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:07:11,746 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:07:11,747 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:07:11,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:07:11,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:07:11,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:07:11,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:07:11,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:07:11,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:07:11,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:07:11,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:07:11,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:07:11,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:07:11,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:07:11,750 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:07:11,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:07:11,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:07:11,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:07:11,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:07:11,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:07:11,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:07:11,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:07:11,752 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_2cd02ef2-ff1e-487c-b3bb-4606b2214660/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 -> bfef9e0cd5324afc9386a78468bea49ee605e5037c2d685b322567d67d524bb4 [2024-11-28 04:07:12,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:07:12,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:07:12,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:07:12,116 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:07:12,116 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:07:12,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-86.i [2024-11-28 04:07:15,355 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/data/ef649e01f/d43a181d99a246d1bcf13179d199633b/FLAG2a1d63222 [2024-11-28 04:07:15,705 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:07:15,706 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-86.i [2024-11-28 04:07:15,713 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/data/ef649e01f/d43a181d99a246d1bcf13179d199633b/FLAG2a1d63222 [2024-11-28 04:07:15,728 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/data/ef649e01f/d43a181d99a246d1bcf13179d199633b [2024-11-28 04:07:15,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:07:15,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:07:15,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:07:15,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:07:15,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:07:15,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:07:15" (1/1) ... [2024-11-28 04:07:15,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388c48c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:15, skipping insertion in model container [2024-11-28 04:07:15,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:07:15" (1/1) ... [2024-11-28 04:07:15,769 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:07:15,956 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_2cd02ef2-ff1e-487c-b3bb-4606b2214660/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-86.i[915,928] [2024-11-28 04:07:16,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:07:16,054 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:07:16,072 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_2cd02ef2-ff1e-487c-b3bb-4606b2214660/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-86.i[915,928] [2024-11-28 04:07:16,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:07:16,140 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:07:16,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16 WrapperNode [2024-11-28 04:07:16,142 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:07:16,143 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:07:16,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:07:16,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:07:16,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,229 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2024-11-28 04:07:16,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:07:16,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:07:16,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:07:16,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:07:16,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,255 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,291 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]. [2024-11-28 04:07:16,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,305 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,318 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:07:16,331 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:07:16,331 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:07:16,332 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:07:16,333 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (1/1) ... [2024-11-28 04:07:16,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:07:16,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:16,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:07:16,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:07:16,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:07:16,415 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:07:16,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:07:16,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:07:16,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:07:16,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:07:16,514 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:07:16,516 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:07:16,867 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 04:07:16,867 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:07:16,880 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:07:16,881 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:07:16,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:07:16 BoogieIcfgContainer [2024-11-28 04:07:16,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:07:16,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:07:16,885 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:07:16,891 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:07:16,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:07:15" (1/3) ... [2024-11-28 04:07:16,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22396424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:07:16, skipping insertion in model container [2024-11-28 04:07:16,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:16" (2/3) ... [2024-11-28 04:07:16,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22396424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:07:16, skipping insertion in model container [2024-11-28 04:07:16,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:07:16" (3/3) ... [2024-11-28 04:07:16,895 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-86.i [2024-11-28 04:07:16,915 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:07:16,917 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-86.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:07:16,982 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:07:16,997 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;@63f071f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:07:16,997 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:07:17,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:07:17,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:07:17,014 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:17,015 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:17,015 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:17,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:17,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1174992419, now seen corresponding path program 1 times [2024-11-28 04:07:17,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:17,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566282026] [2024-11-28 04:07:17,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:17,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 04:07:17,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:17,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566282026] [2024-11-28 04:07:17,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566282026] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:17,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051057378] [2024-11-28 04:07:17,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:17,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:17,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:17,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:17,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:07:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:17,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:07:17,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:17,670 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 04:07:17,670 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:17,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051057378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:17,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:17,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:07:17,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157082377] [2024-11-28 04:07:17,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:17,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:07:17,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:17,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:07:17,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:07:17,712 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:07:17,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:17,751 INFO L93 Difference]: Finished difference Result 95 states and 161 transitions. [2024-11-28 04:07:17,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:07:17,754 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2024-11-28 04:07:17,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:17,760 INFO L225 Difference]: With dead ends: 95 [2024-11-28 04:07:17,760 INFO L226 Difference]: Without dead ends: 47 [2024-11-28 04:07:17,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:07:17,767 INFO L435 NwaCegarLoop]: 68 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, 68 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 [2024-11-28 04:07:17,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:07:17,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-28 04:07:17,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-28 04:07:17,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:07:17,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-11-28 04:07:17,831 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 108 [2024-11-28 04:07:17,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:17,833 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-11-28 04:07:17,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:07:17,833 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-11-28 04:07:17,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:07:17,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:17,838 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:17,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:07:18,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:07:18,040 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:18,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:18,041 INFO L85 PathProgramCache]: Analyzing trace with hash 510743009, now seen corresponding path program 1 times [2024-11-28 04:07:18,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:18,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844377692] [2024-11-28 04:07:18,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:18,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:22,189 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:07:22,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:22,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844377692] [2024-11-28 04:07:22,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844377692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:22,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:22,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:07:22,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477502140] [2024-11-28 04:07:22,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:22,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:07:22,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:22,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:07:22,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:07:22,196 INFO L87 Difference]: Start difference. First operand 47 states and 68 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:22,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:22,725 INFO L93 Difference]: Finished difference Result 67 states and 92 transitions. [2024-11-28 04:07:22,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:07:22,726 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-28 04:07:22,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:22,728 INFO L225 Difference]: With dead ends: 67 [2024-11-28 04:07:22,729 INFO L226 Difference]: Without dead ends: 65 [2024-11-28 04:07:22,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:07:22,730 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 29 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:22,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 204 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:07:22,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-28 04:07:22,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 56. [2024-11-28 04:07:22,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 37 states have internal predecessors, (47), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 04:07:22,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 81 transitions. [2024-11-28 04:07:22,743 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 81 transitions. Word has length 108 [2024-11-28 04:07:22,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:22,745 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 81 transitions. [2024-11-28 04:07:22,745 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2024-11-28 04:07:22,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:07:22,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:22,747 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:22,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:07:22,748 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:22,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:22,749 INFO L85 PathProgramCache]: Analyzing trace with hash 512590051, now seen corresponding path program 1 times [2024-11-28 04:07:22,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:22,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022799789] [2024-11-28 04:07:22,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:22,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:24,017 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:07:24,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:24,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022799789] [2024-11-28 04:07:24,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022799789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:24,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:24,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:07:24,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286431680] [2024-11-28 04:07:24,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:24,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:07:24,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:24,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:07:24,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:07:24,019 INFO L87 Difference]: Start difference. First operand 56 states and 81 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:07:24,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:24,376 INFO L93 Difference]: Finished difference Result 195 states and 282 transitions. [2024-11-28 04:07:24,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:07:24,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2024-11-28 04:07:24,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:24,383 INFO L225 Difference]: With dead ends: 195 [2024-11-28 04:07:24,383 INFO L226 Difference]: Without dead ends: 142 [2024-11-28 04:07:24,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:07:24,387 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 84 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:24,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 218 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:07:24,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-28 04:07:24,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 137. [2024-11-28 04:07:24,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 88 states have (on average 1.2386363636363635) internal successors, (109), 89 states have internal predecessors, (109), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 04:07:24,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 199 transitions. [2024-11-28 04:07:24,452 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 199 transitions. Word has length 108 [2024-11-28 04:07:24,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:24,456 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 199 transitions. [2024-11-28 04:07:24,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 04:07:24,456 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 199 transitions. [2024-11-28 04:07:24,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:07:24,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:24,458 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:24,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:07:24,461 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:24,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:24,462 INFO L85 PathProgramCache]: Analyzing trace with hash 569848353, now seen corresponding path program 1 times [2024-11-28 04:07:24,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:24,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854786638] [2024-11-28 04:07:24,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:24,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:28,797 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:07:28,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:28,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854786638] [2024-11-28 04:07:28,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854786638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:28,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:28,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:07:28,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412247409] [2024-11-28 04:07:28,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:28,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:07:28,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:28,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:07:28,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:07:28,801 INFO L87 Difference]: Start difference. First operand 137 states and 199 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:29,601 INFO L93 Difference]: Finished difference Result 188 states and 258 transitions. [2024-11-28 04:07:29,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:07:29,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-28 04:07:29,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:29,609 INFO L225 Difference]: With dead ends: 188 [2024-11-28 04:07:29,611 INFO L226 Difference]: Without dead ends: 186 [2024-11-28 04:07:29,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:07:29,612 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 27 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:29,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 273 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:07:29,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-28 04:07:29,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 144. [2024-11-28 04:07:29,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 95 states have (on average 1.263157894736842) internal successors, (120), 96 states have internal predecessors, (120), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 04:07:29,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2024-11-28 04:07:29,670 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 210 transitions. Word has length 108 [2024-11-28 04:07:29,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:29,671 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 210 transitions. [2024-11-28 04:07:29,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:29,671 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 210 transitions. [2024-11-28 04:07:29,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:07:29,673 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:29,674 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:29,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:07:29,674 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:29,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:29,675 INFO L85 PathProgramCache]: Analyzing trace with hash 174974301, now seen corresponding path program 1 times [2024-11-28 04:07:29,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:29,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745820299] [2024-11-28 04:07:29,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:29,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:32,536 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:07:32,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:32,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745820299] [2024-11-28 04:07:32,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745820299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:32,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:32,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:07:32,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548305250] [2024-11-28 04:07:32,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:32,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:07:32,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:32,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:07:32,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:07:32,541 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:33,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:33,208 INFO L93 Difference]: Finished difference Result 186 states and 258 transitions. [2024-11-28 04:07:33,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:07:33,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-28 04:07:33,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:33,212 INFO L225 Difference]: With dead ends: 186 [2024-11-28 04:07:33,213 INFO L226 Difference]: Without dead ends: 184 [2024-11-28 04:07:33,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:07:33,216 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 19 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:33,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 257 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:07:33,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-28 04:07:33,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 139. [2024-11-28 04:07:33,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 90 states have (on average 1.2444444444444445) internal successors, (112), 91 states have internal predecessors, (112), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 04:07:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 202 transitions. [2024-11-28 04:07:33,269 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 202 transitions. Word has length 108 [2024-11-28 04:07:33,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:33,270 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 202 transitions. [2024-11-28 04:07:33,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:33,270 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 202 transitions. [2024-11-28 04:07:33,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:07:33,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:33,272 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:33,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:07:33,276 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:33,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:33,277 INFO L85 PathProgramCache]: Analyzing trace with hash 176821343, now seen corresponding path program 1 times [2024-11-28 04:07:33,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:33,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4656683] [2024-11-28 04:07:33,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:33,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:33,488 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:07:33,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:33,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4656683] [2024-11-28 04:07:33,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4656683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:33,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:33,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:07:33,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435146430] [2024-11-28 04:07:33,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:33,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:07:33,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:33,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:07:33,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:07:33,491 INFO L87 Difference]: Start difference. First operand 139 states and 202 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:33,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:33,541 INFO L93 Difference]: Finished difference Result 317 states and 463 transitions. [2024-11-28 04:07:33,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:07:33,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-28 04:07:33,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:33,544 INFO L225 Difference]: With dead ends: 317 [2024-11-28 04:07:33,544 INFO L226 Difference]: Without dead ends: 181 [2024-11-28 04:07:33,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:07:33,546 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 27 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:33,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 135 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:07:33,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-28 04:07:33,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-28 04:07:33,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 114 states have (on average 1.2105263157894737) internal successors, (138), 115 states have internal predecessors, (138), 62 states have call successors, (62), 4 states have call predecessors, (62), 4 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 04:07:33,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 262 transitions. [2024-11-28 04:07:33,584 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 262 transitions. Word has length 108 [2024-11-28 04:07:33,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:33,585 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 262 transitions. [2024-11-28 04:07:33,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:33,585 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 262 transitions. [2024-11-28 04:07:33,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 04:07:33,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:33,587 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:33,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:07:33,588 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:33,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:33,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1924915025, now seen corresponding path program 1 times [2024-11-28 04:07:33,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:33,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361540661] [2024-11-28 04:07:33,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:33,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:07:33,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:33,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361540661] [2024-11-28 04:07:33,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361540661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:33,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:33,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:07:33,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441186348] [2024-11-28 04:07:33,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:33,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:07:33,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:33,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:07:33,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:07:33,656 INFO L87 Difference]: Start difference. First operand 181 states and 262 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:33,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:33,725 INFO L93 Difference]: Finished difference Result 427 states and 623 transitions. [2024-11-28 04:07:33,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:07:33,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-28 04:07:33,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:33,729 INFO L225 Difference]: With dead ends: 427 [2024-11-28 04:07:33,730 INFO L226 Difference]: Without dead ends: 291 [2024-11-28 04:07:33,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:07:33,732 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 58 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:33,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 184 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:07:33,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-28 04:07:33,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 286. [2024-11-28 04:07:33,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 171 states have (on average 1.152046783625731) internal successors, (197), 173 states have internal predecessors, (197), 107 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-28 04:07:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 411 transitions. [2024-11-28 04:07:33,815 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 411 transitions. Word has length 109 [2024-11-28 04:07:33,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:33,816 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 411 transitions. [2024-11-28 04:07:33,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:33,816 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 411 transitions. [2024-11-28 04:07:33,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 04:07:33,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:33,819 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:33,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:07:33,821 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:33,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:33,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1923067983, now seen corresponding path program 1 times [2024-11-28 04:07:33,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:33,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660309019] [2024-11-28 04:07:33,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:33,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:07:35,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:35,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660309019] [2024-11-28 04:07:35,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660309019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:35,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:35,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:07:35,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173127133] [2024-11-28 04:07:35,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:35,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:07:35,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:35,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:07:35,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:07:35,130 INFO L87 Difference]: Start difference. First operand 286 states and 411 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:35,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:35,335 INFO L93 Difference]: Finished difference Result 465 states and 662 transitions. [2024-11-28 04:07:35,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:07:35,336 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-28 04:07:35,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:35,339 INFO L225 Difference]: With dead ends: 465 [2024-11-28 04:07:35,340 INFO L226 Difference]: Without dead ends: 315 [2024-11-28 04:07:35,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:07:35,342 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 13 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:35,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 277 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:07:35,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-28 04:07:35,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 288. [2024-11-28 04:07:35,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 173 states have (on average 1.1502890173410405) internal successors, (199), 175 states have internal predecessors, (199), 107 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-28 04:07:35,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 413 transitions. [2024-11-28 04:07:35,424 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 413 transitions. Word has length 109 [2024-11-28 04:07:35,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:35,424 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 413 transitions. [2024-11-28 04:07:35,425 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:35,425 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 413 transitions. [2024-11-28 04:07:35,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 04:07:35,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:35,427 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:35,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:07:35,427 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:35,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:35,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1865809681, now seen corresponding path program 1 times [2024-11-28 04:07:35,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:35,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368042753] [2024-11-28 04:07:35,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:35,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:07:38,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:38,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368042753] [2024-11-28 04:07:38,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368042753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:38,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:38,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:07:38,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516420203] [2024-11-28 04:07:38,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:38,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:07:38,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:38,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:07:38,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:07:38,932 INFO L87 Difference]: Start difference. First operand 288 states and 413 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:39,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:39,614 INFO L93 Difference]: Finished difference Result 319 states and 447 transitions. [2024-11-28 04:07:39,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:07:39,615 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-28 04:07:39,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:39,618 INFO L225 Difference]: With dead ends: 319 [2024-11-28 04:07:39,622 INFO L226 Difference]: Without dead ends: 317 [2024-11-28 04:07:39,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:07:39,623 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 16 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:39,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 308 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:07:39,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-28 04:07:39,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 287. [2024-11-28 04:07:39,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 172 states have (on average 1.1511627906976745) internal successors, (198), 174 states have internal predecessors, (198), 107 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-28 04:07:39,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 412 transitions. [2024-11-28 04:07:39,688 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 412 transitions. Word has length 109 [2024-11-28 04:07:39,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:39,690 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 412 transitions. [2024-11-28 04:07:39,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:39,690 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 412 transitions. [2024-11-28 04:07:39,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-28 04:07:39,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:39,695 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 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, 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] [2024-11-28 04:07:39,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:07:39,695 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:39,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:39,696 INFO L85 PathProgramCache]: Analyzing trace with hash 331303968, now seen corresponding path program 1 times [2024-11-28 04:07:39,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:39,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590842535] [2024-11-28 04:07:39,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:39,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:39,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-28 04:07:39,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:39,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590842535] [2024-11-28 04:07:39,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590842535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:39,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:39,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:07:39,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151842104] [2024-11-28 04:07:39,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:39,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:07:39,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:39,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:07:39,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:07:39,843 INFO L87 Difference]: Start difference. First operand 287 states and 412 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-28 04:07:39,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:39,906 INFO L93 Difference]: Finished difference Result 535 states and 769 transitions. [2024-11-28 04:07:39,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:07:39,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 213 [2024-11-28 04:07:39,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:39,912 INFO L225 Difference]: With dead ends: 535 [2024-11-28 04:07:39,912 INFO L226 Difference]: Without dead ends: 293 [2024-11-28 04:07:39,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:07:39,914 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 24 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:39,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 132 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:07:39,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-28 04:07:39,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 247. [2024-11-28 04:07:39,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 150 states have (on average 1.1266666666666667) internal successors, (169), 152 states have internal predecessors, (169), 90 states have call successors, (90), 6 states have call predecessors, (90), 6 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 04:07:39,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 349 transitions. [2024-11-28 04:07:39,973 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 349 transitions. Word has length 213 [2024-11-28 04:07:39,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:39,976 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 349 transitions. [2024-11-28 04:07:39,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-28 04:07:39,977 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 349 transitions. [2024-11-28 04:07:39,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-28 04:07:39,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:39,982 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 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, 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] [2024-11-28 04:07:39,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:07:39,982 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:39,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:39,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1800046754, now seen corresponding path program 1 times [2024-11-28 04:07:39,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:39,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432334316] [2024-11-28 04:07:39,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:39,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:43,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2271 trivial. 0 not checked. [2024-11-28 04:07:43,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:43,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432334316] [2024-11-28 04:07:43,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432334316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:43,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:43,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:07:43,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021340236] [2024-11-28 04:07:43,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:43,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:07:43,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:43,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:07:43,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:07:43,939 INFO L87 Difference]: Start difference. First operand 247 states and 349 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:44,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:44,732 INFO L93 Difference]: Finished difference Result 289 states and 394 transitions. [2024-11-28 04:07:44,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:07:44,733 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 213 [2024-11-28 04:07:44,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:44,738 INFO L225 Difference]: With dead ends: 289 [2024-11-28 04:07:44,738 INFO L226 Difference]: Without dead ends: 287 [2024-11-28 04:07:44,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:07:44,740 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 32 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:44,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 257 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:07:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-28 04:07:44,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 250. [2024-11-28 04:07:44,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 153 states have (on average 1.1241830065359477) internal successors, (172), 155 states have internal predecessors, (172), 90 states have call successors, (90), 6 states have call predecessors, (90), 6 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 04:07:44,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 352 transitions. [2024-11-28 04:07:44,817 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 352 transitions. Word has length 213 [2024-11-28 04:07:44,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:44,818 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 352 transitions. [2024-11-28 04:07:44,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:07:44,818 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 352 transitions. [2024-11-28 04:07:44,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 04:07:44,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:44,825 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 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, 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, 1, 1] [2024-11-28 04:07:44,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:07:44,826 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:44,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:44,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1919595028, now seen corresponding path program 1 times [2024-11-28 04:07:44,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:44,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968858480] [2024-11-28 04:07:44,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:44,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:48,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-28 04:07:48,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:48,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968858480] [2024-11-28 04:07:48,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968858480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:48,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539158807] [2024-11-28 04:07:48,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:48,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:48,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:48,126 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:48,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:07:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:48,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 04:07:48,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:52,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 760 proven. 87 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-11-28 04:07:52,141 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:00,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2274 trivial. 0 not checked. [2024-11-28 04:08:00,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539158807] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:00,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:08:00,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 13] total 27 [2024-11-28 04:08:00,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190019466] [2024-11-28 04:08:00,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:08:00,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:08:00,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:00,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:08:00,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=592, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:08:00,820 INFO L87 Difference]: Start difference. First operand 250 states and 352 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:08:01,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:01,203 INFO L93 Difference]: Finished difference Result 288 states and 393 transitions. [2024-11-28 04:08:01,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:08:01,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 214 [2024-11-28 04:08:01,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:01,207 INFO L225 Difference]: With dead ends: 288 [2024-11-28 04:08:01,207 INFO L226 Difference]: Without dead ends: 286 [2024-11-28 04:08:01,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:08:01,209 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 40 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:01,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 289 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:08:01,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-28 04:08:01,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 285. [2024-11-28 04:08:01,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 174 states have (on average 1.103448275862069) internal successors, (192), 177 states have internal predecessors, (192), 99 states have call successors, (99), 11 states have call predecessors, (99), 11 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-28 04:08:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 390 transitions. [2024-11-28 04:08:01,267 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 390 transitions. Word has length 214 [2024-11-28 04:08:01,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:01,268 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 390 transitions. [2024-11-28 04:08:01,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 04:08:01,268 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 390 transitions. [2024-11-28 04:08:01,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 04:08:01,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:01,271 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 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, 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] [2024-11-28 04:08:01,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:08:01,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:08:01,475 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:08:01,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:01,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1976853330, now seen corresponding path program 1 times [2024-11-28 04:08:01,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:01,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410785551] [2024-11-28 04:08:01,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:01,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-28 04:08:04,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:04,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410785551] [2024-11-28 04:08:04,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410785551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:04,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268824743] [2024-11-28 04:08:04,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:04,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:04,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:04,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:04,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:08:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:04,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 04:08:04,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:08,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 1077 proven. 876 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-28 04:09:08,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:58,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 295 proven. 119 refuted. 0 times theorem prover too weak. 1866 trivial. 0 not checked. [2024-11-28 04:09:58,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268824743] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:09:58,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:09:58,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 31, 24] total 61 [2024-11-28 04:09:58,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109343370] [2024-11-28 04:09:58,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:58,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-28 04:09:58,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:58,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-28 04:09:58,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=481, Invalid=3179, Unknown=0, NotChecked=0, Total=3660 [2024-11-28 04:09:58,529 INFO L87 Difference]: Start difference. First operand 285 states and 390 transitions. Second operand has 61 states, 59 states have (on average 2.5254237288135593) internal successors, (149), 55 states have internal predecessors, (149), 10 states have call successors, (81), 7 states have call predecessors, (81), 15 states have return successors, (82), 14 states have call predecessors, (82), 10 states have call successors, (82) [2024-11-28 04:10:08,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:08,499 INFO L93 Difference]: Finished difference Result 693 states and 904 transitions. [2024-11-28 04:10:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2024-11-28 04:10:08,501 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 59 states have (on average 2.5254237288135593) internal successors, (149), 55 states have internal predecessors, (149), 10 states have call successors, (81), 7 states have call predecessors, (81), 15 states have return successors, (82), 14 states have call predecessors, (82), 10 states have call successors, (82) Word has length 214 [2024-11-28 04:10:08,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:08,503 INFO L225 Difference]: With dead ends: 693 [2024-11-28 04:10:08,503 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:10:08,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5519 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=3377, Invalid=15529, Unknown=0, NotChecked=0, Total=18906 [2024-11-28 04:10:08,510 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 649 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 3843 mSolverCounterSat, 883 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 4726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 883 IncrementalHoareTripleChecker+Valid, 3843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:08,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1258 Invalid, 4726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [883 Valid, 3843 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 04:10:08,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:10:08,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:10:08,512 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) [2024-11-28 04:10:08,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:10:08,512 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 214 [2024-11-28 04:10:08,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:08,513 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:10:08,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 59 states have (on average 2.5254237288135593) internal successors, (149), 55 states have internal predecessors, (149), 10 states have call successors, (81), 7 states have call predecessors, (81), 15 states have return successors, (82), 14 states have call predecessors, (82), 10 states have call successors, (82) [2024-11-28 04:10:08,513 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:10:08,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:10:08,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:10:08,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:10:08,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:10:08,721 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:08,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:10:15,830 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:10:15,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:10:15 BoogieIcfgContainer [2024-11-28 04:10:15,851 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:10:15,851 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:10:15,851 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:10:15,852 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:10:15,852 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:07:16" (3/4) ... [2024-11-28 04:10:15,855 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:10:15,862 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 04:10:15,870 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-28 04:10:15,871 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 04:10:15,872 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:10:15,872 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:10:15,983 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:10:15,984 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:10:15,984 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:10:15,987 INFO L158 Benchmark]: Toolchain (without parser) took 180251.07ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 84.6MB in the beginning and 544.7MB in the end (delta: -460.1MB). Peak memory consumption was 776.1MB. Max. memory is 16.1GB. [2024-11-28 04:10:15,987 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:10:15,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.62ms. Allocated memory is still 117.4MB. Free memory was 84.6MB in the beginning and 71.7MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:10:15,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.01ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 68.3MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:10:15,989 INFO L158 Benchmark]: Boogie Preprocessor took 96.47ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 63.6MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:10:15,989 INFO L158 Benchmark]: RCFGBuilder took 550.19ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 45.8MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:10:15,990 INFO L158 Benchmark]: TraceAbstraction took 178966.21ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 45.4MB in the beginning and 553.0MB in the end (delta: -507.6MB). Peak memory consumption was 777.0MB. Max. memory is 16.1GB. [2024-11-28 04:10:15,991 INFO L158 Benchmark]: Witness Printer took 132.76ms. Allocated memory is still 1.4GB. Free memory was 553.0MB in the beginning and 544.7MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:10:15,993 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.62ms. Allocated memory is still 117.4MB. Free memory was 84.6MB in the beginning and 71.7MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.01ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 68.3MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.47ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 63.6MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 550.19ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 45.8MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 178966.21ms. Allocated memory was 117.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 45.4MB in the beginning and 553.0MB in the end (delta: -507.6MB). Peak memory consumption was 777.0MB. Max. memory is 16.1GB. * Witness Printer took 132.76ms. Allocated memory is still 1.4GB. Free memory was 553.0MB in the beginning and 544.7MB in the end (delta: 8.3MB). There was no memory consumed. 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, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 171.8s, OverallIterations: 13, TraceHistogramMax: 34, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 14.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1032 SdHoareTripleChecker+Valid, 7.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1018 mSDsluCounter, 3860 SdHoareTripleChecker+Invalid, 6.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2919 mSDsCounter, 912 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4847 IncrementalHoareTripleChecker+Invalid, 5759 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 912 mSolverCounterUnsat, 941 mSDtfsCounter, 4847 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1165 GetRequests, 948 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5762 ImplicationChecksByTransitivity, 13.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=8, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 247 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 153.8s InterpolantComputationTime, 2365 NumberOfCodeBlocks, 2365 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2775 ConstructedInterpolants, 0 QuantifiedInterpolants, 11925 SizeOfPredicates, 65 NumberOfNonLiveVariables, 1133 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 22562/23680 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: 95]: Loop Invariant Derived loop invariant: ((((((((((var_1_18 == 1) && (var_1_7 == 4)) && (var_1_13 <= ((((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) >= 0) ? (((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) % 4294967296) : ((((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) % 4294967296) + 4294967296)))) && (var_1_16 == 0)) && (var_1_9 <= 2147483647)) && (2147483647 <= var_1_13)) || (((((var_1_18 == 1) && (var_1_16 == 1)) && (var_1_9 <= 2147483647)) && (var_1_11 <= 254)) && (2147483647 <= var_1_13))) || (((((var_1_7 == 4) && (var_1_16 == 0)) && (var_1_18 == var_1_16)) && (var_1_9 <= 2147483647)) && (2147483647 <= var_1_13))) || (((((((((var_1_18 == 1) && (var_1_7 == var_1_11)) && (var_1_7 == var_1_1)) && (0 <= 0)) && ((((((long long) var_1_8 + 1) <= 0) && ((((((long long) var_1_9 + 1) == (((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10)) && ((var_1_3 + 1) <= 0)) && (((var_1_3 >= 0) ? (var_1_3 % var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 % var_1_8) + var_1_8) : ((var_1_3 % var_1_8) - var_1_8))) != 0)) || (var_1_9 == (((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10)))) || (((0 < (var_1_3 + 1)) || (((var_1_3 >= 0) ? (var_1_3 % var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 % var_1_8) + var_1_8) : ((var_1_3 % var_1_8) - var_1_8))) == 0)) && (var_1_9 == (((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10)))) || ((((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10) < var_1_9))) && (var_1_16 == 1)) && ((((((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) >= 0) ? (((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) % 4294967296) : ((((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) % 4294967296) + 4294967296)) + 1) <= var_1_13)) && (var_1_9 <= 2147483647)) && (2147483647 <= var_1_13))) || ((((((((((var_1_18 == 1) && (var_1_9 <= (((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10))) && (var_1_7 == 4)) && (var_1_16 == 1)) && ((var_1_9 < (((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10)) || (((var_1_3 + 1) <= 0) && (((var_1_3 >= 0) ? (var_1_3 % var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 % var_1_8) + var_1_8) : ((var_1_3 % var_1_8) - var_1_8))) != 0)))) && ((((((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) >= 0) ? (((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) % 4294967296) : ((((((4294967295 * var_1_11) + (4294967295 * last_1_var_1_1)) + 4294967196) + var_1_17) % 4294967296) + 4294967296)) + 1) <= var_1_13)) && (var_1_1 == 4)) && (var_1_9 <= 2147483647)) && (2147483647 <= var_1_13)) && ((((0 < (var_1_3 + 1)) || (0 < ((long long) var_1_8 + 1))) || (((var_1_3 >= 0) ? (var_1_3 % var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 % var_1_8) + var_1_8) : ((var_1_3 % var_1_8) - var_1_8))) == 0)) || (((long long) var_1_9 + 1) < (((var_1_3 >= 0) ? (var_1_3 / var_1_8) : ((var_1_8 >= 0) ? ((var_1_3 / var_1_8) - 1) : ((var_1_3 / var_1_8) + 1))) + var_1_10))))) RESULT: Ultimate proved your program to be correct! [2024-11-28 04:10:16,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd02ef2-ff1e-487c-b3bb-4606b2214660/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