./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.09.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd --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 3945fa4b58cef50cb4b44b435a699812e99a1f6375664d08551274c6b50bee45 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:58:54,281 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:58:54,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 12:58:54,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:58:54,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:58:54,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:58:54,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:58:54,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:58:54,418 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:58:54,418 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:58:54,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:58:54,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:58:54,418 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:58:54,418 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:58:54,419 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:58:54,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:58:54,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:58:54,419 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:58:54,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:58:54,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:58:54,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:58:54,419 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:58:54,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:58:54,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:58:54,420 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:58:54,420 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:58:54,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:58:54,420 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:58:54,420 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:58:54,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:58:54,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:58:54,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:58:54,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:58:54,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:58:54,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:58:54,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:58:54,421 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:58:54,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:58:54,421 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:58:54,421 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:58:54,422 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:58:54,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:58:54,422 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_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd 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 -> 3945fa4b58cef50cb4b44b435a699812e99a1f6375664d08551274c6b50bee45 [2024-11-13 12:58:54,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:58:54,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:58:54,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:58:54,743 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:58:54,744 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:58:54,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/systemc/transmitter.09.cil.c Unable to find full path for "g++" [2024-11-13 12:58:56,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:58:56,979 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:58:56,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/sv-benchmarks/c/systemc/transmitter.09.cil.c [2024-11-13 12:58:57,001 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd/data/eb0440999/f4bbfe4912994109a271e570860292d3/FLAGdaef88e6b [2024-11-13 12:58:57,024 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd/data/eb0440999/f4bbfe4912994109a271e570860292d3 [2024-11-13 12:58:57,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:58:57,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:58:57,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:58:57,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:58:57,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:58:57,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a53266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57, skipping insertion in model container [2024-11-13 12:58:57,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:58:57,276 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_6e91d2a7-01be-4b69-8690-23a9ec5bacca/sv-benchmarks/c/systemc/transmitter.09.cil.c[706,719] [2024-11-13 12:58:57,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:58:57,480 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:58:57,492 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_6e91d2a7-01be-4b69-8690-23a9ec5bacca/sv-benchmarks/c/systemc/transmitter.09.cil.c[706,719] [2024-11-13 12:58:57,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:58:57,617 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:58:57,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57 WrapperNode [2024-11-13 12:58:57,618 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:58:57,619 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:58:57,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:58:57,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:58:57,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,686 INFO L138 Inliner]: procedures = 46, calls = 57, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 669 [2024-11-13 12:58:57,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:58:57,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:58:57,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:58:57,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:58:57,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,720 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]. [2024-11-13 12:58:57,720 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,730 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,748 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,758 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,771 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:58:57,772 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:58:57,772 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:58:57,772 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:58:57,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (1/1) ... [2024-11-13 12:58:57,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:58:57,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:58:57,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:58:57,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e91d2a7-01be-4b69-8690-23a9ec5bacca/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:58:57,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:58:57,845 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-13 12:58:57,846 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-13 12:58:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-13 12:58:57,846 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-13 12:58:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-13 12:58:57,846 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-13 12:58:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-13 12:58:57,846 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-13 12:58:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-13 12:58:57,846 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-13 12:58:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:58:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-13 12:58:57,846 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-13 12:58:57,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:58:57,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:58:57,955 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:58:57,957 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:58:58,883 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-13 12:58:58,883 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:58:58,913 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:58:58,913 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-13 12:58:58,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:58:58 BoogieIcfgContainer [2024-11-13 12:58:58,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:58:58,918 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:58:58,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:58:58,924 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:58:58,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:58:57" (1/3) ... [2024-11-13 12:58:58,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70fa78b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:58:58, skipping insertion in model container [2024-11-13 12:58:58,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:57" (2/3) ... [2024-11-13 12:58:58,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70fa78b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:58:58, skipping insertion in model container [2024-11-13 12:58:58,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:58:58" (3/3) ... [2024-11-13 12:58:58,926 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.09.cil.c [2024-11-13 12:58:58,946 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:58:58,950 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG transmitter.09.cil.c that has 7 procedures, 313 locations, 1 initial locations, 13 loop locations, and 1 error locations. [2024-11-13 12:58:59,035 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:58:59,047 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;@3b43907b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:58:59,052 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:58:59,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 313 states, 283 states have (on average 1.6289752650176679) internal successors, (461), 285 states have internal predecessors, (461), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 12:58:59,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 12:58:59,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:58:59,076 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:58:59,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:58:59,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:58:59,081 INFO L85 PathProgramCache]: Analyzing trace with hash -675975271, now seen corresponding path program 1 times [2024-11-13 12:58:59,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:58:59,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970578078] [2024-11-13 12:58:59,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:58:59,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:58:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:58:59,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 12:58:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:58:59,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 12:58:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:58:59,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 12:58:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:58:59,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 12:58:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:58:59,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 12:58:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:58:59,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:58:59,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:58:59,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970578078] [2024-11-13 12:58:59,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970578078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:58:59,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:58:59,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:58:59,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339356639] [2024-11-13 12:58:59,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:58:59,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:58:59,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:58:59,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:58:59,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:58:59,952 INFO L87 Difference]: Start difference. First operand has 313 states, 283 states have (on average 1.6289752650176679) internal successors, (461), 285 states have internal predecessors, (461), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:02,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:59:02,220 INFO L93 Difference]: Finished difference Result 726 states and 1184 transitions. [2024-11-13 12:59:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:59:02,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-13 12:59:02,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:59:02,242 INFO L225 Difference]: With dead ends: 726 [2024-11-13 12:59:02,242 INFO L226 Difference]: Without dead ends: 415 [2024-11-13 12:59:02,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:59:02,250 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 809 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 12:59:02,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 622 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 12:59:02,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-13 12:59:02,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 308. [2024-11-13 12:59:02,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 279 states have (on average 1.5340501792114696) internal successors, (428), 280 states have internal predecessors, (428), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 12:59:02,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 472 transitions. [2024-11-13 12:59:02,344 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 472 transitions. Word has length 151 [2024-11-13 12:59:02,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:59:02,344 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 472 transitions. [2024-11-13 12:59:02,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:02,345 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 472 transitions. [2024-11-13 12:59:02,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 12:59:02,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:59:02,351 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:59:02,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:59:02,351 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:59:02,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:59:02,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1014262821, now seen corresponding path program 1 times [2024-11-13 12:59:02,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:59:02,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094308845] [2024-11-13 12:59:02,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:02,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:59:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:02,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 12:59:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:02,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 12:59:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:02,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 12:59:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:02,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 12:59:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:02,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 12:59:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:02,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:59:02,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:59:02,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094308845] [2024-11-13 12:59:02,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094308845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:59:02,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:59:02,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:59:02,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819240909] [2024-11-13 12:59:02,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:59:02,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:59:02,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:59:02,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:59:02,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:59:02,781 INFO L87 Difference]: Start difference. First operand 308 states and 472 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:04,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:59:04,618 INFO L93 Difference]: Finished difference Result 709 states and 1104 transitions. [2024-11-13 12:59:04,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:59:04,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-13 12:59:04,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:59:04,626 INFO L225 Difference]: With dead ends: 709 [2024-11-13 12:59:04,626 INFO L226 Difference]: Without dead ends: 415 [2024-11-13 12:59:04,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:59:04,629 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 796 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 12:59:04,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 608 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 12:59:04,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-13 12:59:04,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 308. [2024-11-13 12:59:04,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 279 states have (on average 1.5304659498207884) internal successors, (427), 280 states have internal predecessors, (427), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 12:59:04,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 471 transitions. [2024-11-13 12:59:04,690 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 471 transitions. Word has length 151 [2024-11-13 12:59:04,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:59:04,690 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 471 transitions. [2024-11-13 12:59:04,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:04,691 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 471 transitions. [2024-11-13 12:59:04,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 12:59:04,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:59:04,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:59:04,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:59:04,710 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:59:04,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:59:04,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1432151523, now seen corresponding path program 1 times [2024-11-13 12:59:04,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:59:04,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768176241] [2024-11-13 12:59:04,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:04,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:59:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:04,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 12:59:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:05,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 12:59:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:05,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 12:59:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:05,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 12:59:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:05,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 12:59:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:59:05,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:59:05,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768176241] [2024-11-13 12:59:05,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768176241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:59:05,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:59:05,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 12:59:05,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918978459] [2024-11-13 12:59:05,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:59:05,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:59:05,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:59:05,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:59:05,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:59:05,204 INFO L87 Difference]: Start difference. First operand 308 states and 471 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:08,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:59:08,382 INFO L93 Difference]: Finished difference Result 1115 states and 1760 transitions. [2024-11-13 12:59:08,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 12:59:08,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-13 12:59:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:59:08,389 INFO L225 Difference]: With dead ends: 1115 [2024-11-13 12:59:08,389 INFO L226 Difference]: Without dead ends: 824 [2024-11-13 12:59:08,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:59:08,392 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 1199 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:59:08,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 1042 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 12:59:08,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-11-13 12:59:08,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 610. [2024-11-13 12:59:08,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 557 states have (on average 1.5421903052064632) internal successors, (859), 559 states have internal predecessors, (859), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-13 12:59:08,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 940 transitions. [2024-11-13 12:59:08,478 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 940 transitions. Word has length 151 [2024-11-13 12:59:08,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:59:08,479 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 940 transitions. [2024-11-13 12:59:08,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:08,480 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 940 transitions. [2024-11-13 12:59:08,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 12:59:08,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:59:08,482 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:59:08,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:59:08,482 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:59:08,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:59:08,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1833939230, now seen corresponding path program 1 times [2024-11-13 12:59:08,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:59:08,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230584173] [2024-11-13 12:59:08,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:08,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:59:08,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:08,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 12:59:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:08,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 12:59:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:08,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 12:59:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:08,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 12:59:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:08,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 12:59:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:08,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:59:08,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:59:08,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230584173] [2024-11-13 12:59:08,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230584173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:59:08,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:59:08,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:59:08,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367509785] [2024-11-13 12:59:08,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:59:08,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:59:08,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:59:08,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:59:08,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:59:08,864 INFO L87 Difference]: Start difference. First operand 610 states and 940 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:13,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:59:13,473 INFO L93 Difference]: Finished difference Result 1975 states and 3093 transitions. [2024-11-13 12:59:13,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 12:59:13,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-13 12:59:13,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:59:13,482 INFO L225 Difference]: With dead ends: 1975 [2024-11-13 12:59:13,483 INFO L226 Difference]: Without dead ends: 1382 [2024-11-13 12:59:13,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 12:59:13,490 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1312 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 3539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:59:13,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2035 Invalid, 3539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3484 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-13 12:59:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2024-11-13 12:59:13,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 892. [2024-11-13 12:59:13,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 815 states have (on average 1.5349693251533743) internal successors, (1251), 818 states have internal predecessors, (1251), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-13 12:59:13,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1368 transitions. [2024-11-13 12:59:13,575 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1368 transitions. Word has length 151 [2024-11-13 12:59:13,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:59:13,576 INFO L471 AbstractCegarLoop]: Abstraction has 892 states and 1368 transitions. [2024-11-13 12:59:13,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:13,576 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1368 transitions. [2024-11-13 12:59:13,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 12:59:13,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:59:13,579 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:59:13,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:59:13,579 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:59:13,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:59:13,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1289066656, now seen corresponding path program 1 times [2024-11-13 12:59:13,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:59:13,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519625325] [2024-11-13 12:59:13,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:13,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:59:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:13,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 12:59:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:13,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 12:59:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:13,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 12:59:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:13,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 12:59:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:13,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 12:59:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:59:13,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:59:13,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519625325] [2024-11-13 12:59:13,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519625325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:59:13,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:59:13,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:59:13,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519616182] [2024-11-13 12:59:13,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:59:13,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:59:13,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:59:13,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:59:13,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:59:13,929 INFO L87 Difference]: Start difference. First operand 892 states and 1368 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:18,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:59:18,411 INFO L93 Difference]: Finished difference Result 3043 states and 4755 transitions. [2024-11-13 12:59:18,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 12:59:18,411 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-13 12:59:18,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:59:18,423 INFO L225 Difference]: With dead ends: 3043 [2024-11-13 12:59:18,423 INFO L226 Difference]: Without dead ends: 2168 [2024-11-13 12:59:18,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 12:59:18,426 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1310 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3480 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 3537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:59:18,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 2033 Invalid, 3537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3480 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-13 12:59:18,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2024-11-13 12:59:18,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 1457. [2024-11-13 12:59:18,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1332 states have (on average 1.5285285285285286) internal successors, (2036), 1337 states have internal predecessors, (2036), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-11-13 12:59:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2229 transitions. [2024-11-13 12:59:18,566 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2229 transitions. Word has length 151 [2024-11-13 12:59:18,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:59:18,566 INFO L471 AbstractCegarLoop]: Abstraction has 1457 states and 2229 transitions. [2024-11-13 12:59:18,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:18,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2229 transitions. [2024-11-13 12:59:18,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 12:59:18,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:59:18,574 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:59:18,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:59:18,574 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:59:18,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:59:18,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1964226782, now seen corresponding path program 1 times [2024-11-13 12:59:18,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:59:18,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500967640] [2024-11-13 12:59:18,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:18,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:59:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:18,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 12:59:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:18,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 12:59:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:18,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 12:59:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:18,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 12:59:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:18,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 12:59:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:18,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:59:18,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:59:18,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500967640] [2024-11-13 12:59:18,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500967640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:59:18,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:59:18,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:59:18,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081546175] [2024-11-13 12:59:18,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:59:18,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:59:18,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:59:18,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:59:18,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:59:18,886 INFO L87 Difference]: Start difference. First operand 1457 states and 2229 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:23,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:59:23,219 INFO L93 Difference]: Finished difference Result 5102 states and 7940 transitions. [2024-11-13 12:59:23,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 12:59:23,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-13 12:59:23,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:59:23,237 INFO L225 Difference]: With dead ends: 5102 [2024-11-13 12:59:23,237 INFO L226 Difference]: Without dead ends: 3662 [2024-11-13 12:59:23,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 12:59:23,242 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1306 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3471 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 3528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:59:23,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 2033 Invalid, 3528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3471 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 12:59:23,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2024-11-13 12:59:23,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 2588. [2024-11-13 12:59:23,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2588 states, 2367 states have (on average 1.523447401774398) internal successors, (3606), 2376 states have internal predecessors, (3606), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-11-13 12:59:23,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 3957 transitions. [2024-11-13 12:59:23,458 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 3957 transitions. Word has length 151 [2024-11-13 12:59:23,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:59:23,459 INFO L471 AbstractCegarLoop]: Abstraction has 2588 states and 3957 transitions. [2024-11-13 12:59:23,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:23,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 3957 transitions. [2024-11-13 12:59:23,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 12:59:23,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:59:23,465 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:59:23,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:59:23,466 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:59:23,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:59:23,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1016174816, now seen corresponding path program 1 times [2024-11-13 12:59:23,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:59:23,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68229265] [2024-11-13 12:59:23,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:23,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:59:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:23,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 12:59:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:23,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 12:59:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:23,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 12:59:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:23,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 12:59:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:23,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 12:59:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:23,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:59:23,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:59:23,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68229265] [2024-11-13 12:59:23,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68229265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:59:23,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:59:23,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:59:23,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575305817] [2024-11-13 12:59:23,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:59:23,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:59:23,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:59:23,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:59:23,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:59:23,787 INFO L87 Difference]: Start difference. First operand 2588 states and 3957 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:28,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:59:28,109 INFO L93 Difference]: Finished difference Result 9219 states and 14326 transitions. [2024-11-13 12:59:28,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 12:59:28,110 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-13 12:59:28,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:59:28,137 INFO L225 Difference]: With dead ends: 9219 [2024-11-13 12:59:28,138 INFO L226 Difference]: Without dead ends: 6648 [2024-11-13 12:59:28,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 12:59:28,150 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1308 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3457 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 3514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:59:28,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 2033 Invalid, 3514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3457 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 12:59:28,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6648 states. [2024-11-13 12:59:28,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6648 to 4855. [2024-11-13 12:59:28,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4855 states, 4442 states have (on average 1.520036019810896) internal successors, (6752), 4459 states have internal predecessors, (6752), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-11-13 12:59:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4855 states to 4855 states and 7437 transitions. [2024-11-13 12:59:28,549 INFO L78 Accepts]: Start accepts. Automaton has 4855 states and 7437 transitions. Word has length 151 [2024-11-13 12:59:28,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:59:28,550 INFO L471 AbstractCegarLoop]: Abstraction has 4855 states and 7437 transitions. [2024-11-13 12:59:28,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:28,550 INFO L276 IsEmpty]: Start isEmpty. Operand 4855 states and 7437 transitions. [2024-11-13 12:59:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 12:59:28,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:59:28,558 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:59:28,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:59:28,558 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:59:28,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:59:28,559 INFO L85 PathProgramCache]: Analyzing trace with hash 431403166, now seen corresponding path program 1 times [2024-11-13 12:59:28,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:59:28,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180797093] [2024-11-13 12:59:28,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:28,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:59:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:28,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 12:59:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:28,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 12:59:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:28,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 12:59:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:28,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 12:59:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:28,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 12:59:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:59:28,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:59:28,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180797093] [2024-11-13 12:59:28,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180797093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:59:28,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:59:28,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:59:28,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834734279] [2024-11-13 12:59:28,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:59:28,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:59:28,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:59:28,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:59:28,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:59:28,859 INFO L87 Difference]: Start difference. First operand 4855 states and 7437 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:33,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:59:33,564 INFO L93 Difference]: Finished difference Result 17437 states and 27128 transitions. [2024-11-13 12:59:33,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 12:59:33,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-13 12:59:33,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:59:33,613 INFO L225 Difference]: With dead ends: 17437 [2024-11-13 12:59:33,613 INFO L226 Difference]: Without dead ends: 12599 [2024-11-13 12:59:33,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 12:59:33,625 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1304 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3429 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 3486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:59:33,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 2033 Invalid, 3486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3429 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 12:59:33,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12599 states. [2024-11-13 12:59:34,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12599 to 9419. [2024-11-13 12:59:34,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9419 states, 8622 states have (on average 1.518905126420784) internal successors, (13096), 8655 states have internal predecessors, (13096), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-13 12:59:34,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9419 states to 9419 states and 14503 transitions. [2024-11-13 12:59:34,459 INFO L78 Accepts]: Start accepts. Automaton has 9419 states and 14503 transitions. Word has length 151 [2024-11-13 12:59:34,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:59:34,460 INFO L471 AbstractCegarLoop]: Abstraction has 9419 states and 14503 transitions. [2024-11-13 12:59:34,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:34,460 INFO L276 IsEmpty]: Start isEmpty. Operand 9419 states and 14503 transitions. [2024-11-13 12:59:34,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 12:59:34,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:59:34,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:59:34,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 12:59:34,478 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:59:34,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:59:34,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1744860, now seen corresponding path program 1 times [2024-11-13 12:59:34,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:59:34,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150151069] [2024-11-13 12:59:34,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:34,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:59:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:34,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 12:59:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:34,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 12:59:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:34,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 12:59:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:34,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 12:59:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:34,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 12:59:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:34,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:59:34,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:59:34,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150151069] [2024-11-13 12:59:34,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150151069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:59:34,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:59:34,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:59:34,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371894048] [2024-11-13 12:59:34,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:59:34,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:59:34,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:59:34,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:59:34,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:59:34,789 INFO L87 Difference]: Start difference. First operand 9419 states and 14503 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:37,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:59:37,127 INFO L93 Difference]: Finished difference Result 22018 states and 34494 transitions. [2024-11-13 12:59:37,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 12:59:37,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-13 12:59:37,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:59:37,180 INFO L225 Difference]: With dead ends: 22018 [2024-11-13 12:59:37,180 INFO L226 Difference]: Without dead ends: 12616 [2024-11-13 12:59:37,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:59:37,201 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 933 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:59:37,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 1010 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 12:59:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12616 states. [2024-11-13 12:59:38,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12616 to 9419. [2024-11-13 12:59:38,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9419 states, 8622 states have (on average 1.5150777081883553) internal successors, (13063), 8655 states have internal predecessors, (13063), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-13 12:59:38,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9419 states to 9419 states and 14470 transitions. [2024-11-13 12:59:38,099 INFO L78 Accepts]: Start accepts. Automaton has 9419 states and 14470 transitions. Word has length 151 [2024-11-13 12:59:38,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:59:38,100 INFO L471 AbstractCegarLoop]: Abstraction has 9419 states and 14470 transitions. [2024-11-13 12:59:38,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:38,101 INFO L276 IsEmpty]: Start isEmpty. Operand 9419 states and 14470 transitions. [2024-11-13 12:59:38,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 12:59:38,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:59:38,121 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:59:38,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 12:59:38,121 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:59:38,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:59:38,122 INFO L85 PathProgramCache]: Analyzing trace with hash -704851746, now seen corresponding path program 1 times [2024-11-13 12:59:38,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:59:38,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012525046] [2024-11-13 12:59:38,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:38,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:59:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:38,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 12:59:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:38,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 12:59:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:38,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 12:59:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:38,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 12:59:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:38,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 12:59:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:38,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:59:38,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:59:38,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012525046] [2024-11-13 12:59:38,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012525046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:59:38,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:59:38,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:59:38,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115317076] [2024-11-13 12:59:38,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:59:38,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:59:38,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:59:38,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:59:38,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:59:38,470 INFO L87 Difference]: Start difference. First operand 9419 states and 14470 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:44,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:59:44,380 INFO L93 Difference]: Finished difference Result 33873 states and 52756 transitions. [2024-11-13 12:59:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 12:59:44,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-13 12:59:44,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:59:44,484 INFO L225 Difference]: With dead ends: 33873 [2024-11-13 12:59:44,485 INFO L226 Difference]: Without dead ends: 24471 [2024-11-13 12:59:44,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 12:59:44,514 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1296 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3391 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 3448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-13 12:59:44,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 2033 Invalid, 3448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3391 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-13 12:59:44,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24471 states. [2024-11-13 12:59:46,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24471 to 18609. [2024-11-13 12:59:46,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18609 states, 17044 states have (on average 1.5134358131893921) internal successors, (25795), 17109 states have internal predecessors, (25795), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2024-11-13 12:59:46,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18609 states to 18609 states and 28808 transitions. [2024-11-13 12:59:46,217 INFO L78 Accepts]: Start accepts. Automaton has 18609 states and 28808 transitions. Word has length 151 [2024-11-13 12:59:46,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:59:46,217 INFO L471 AbstractCegarLoop]: Abstraction has 18609 states and 28808 transitions. [2024-11-13 12:59:46,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:46,218 INFO L276 IsEmpty]: Start isEmpty. Operand 18609 states and 28808 transitions. [2024-11-13 12:59:46,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 12:59:46,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:59:46,252 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:59:46,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:59:46,252 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:59:46,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:59:46,253 INFO L85 PathProgramCache]: Analyzing trace with hash 242186140, now seen corresponding path program 1 times [2024-11-13 12:59:46,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:59:46,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769466946] [2024-11-13 12:59:46,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:46,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:59:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:46,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 12:59:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:46,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 12:59:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:46,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 12:59:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:46,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 12:59:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:46,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 12:59:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:46,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:59:46,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:59:46,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769466946] [2024-11-13 12:59:46,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769466946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:59:46,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:59:46,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:59:46,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414557788] [2024-11-13 12:59:46,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:59:46,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:59:46,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:59:46,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:59:46,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:59:46,570 INFO L87 Difference]: Start difference. First operand 18609 states and 28808 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:53,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:59:53,151 INFO L93 Difference]: Finished difference Result 66813 states and 104884 transitions. [2024-11-13 12:59:53,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 12:59:53,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-13 12:59:53,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:59:53,341 INFO L225 Difference]: With dead ends: 66813 [2024-11-13 12:59:53,341 INFO L226 Difference]: Without dead ends: 48221 [2024-11-13 12:59:53,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 12:59:53,392 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1295 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3378 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:59:53,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 2033 Invalid, 3435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3378 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-13 12:59:53,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48221 states. [2024-11-13 12:59:56,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48221 to 37050. [2024-11-13 12:59:56,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37050 states, 33949 states have (on average 1.5125335061415652) internal successors, (51349), 34078 states have internal predecessors, (51349), 2198 states have call successors, (2198), 774 states have call predecessors, (2198), 902 states have return successors, (4513), 2325 states have call predecessors, (4513), 2198 states have call successors, (4513) [2024-11-13 12:59:56,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37050 states to 37050 states and 58060 transitions. [2024-11-13 12:59:56,546 INFO L78 Accepts]: Start accepts. Automaton has 37050 states and 58060 transitions. Word has length 151 [2024-11-13 12:59:56,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:59:56,547 INFO L471 AbstractCegarLoop]: Abstraction has 37050 states and 58060 transitions. [2024-11-13 12:59:56,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 12:59:56,547 INFO L276 IsEmpty]: Start isEmpty. Operand 37050 states and 58060 transitions. [2024-11-13 12:59:56,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 12:59:56,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:59:56,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:59:56,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 12:59:56,592 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:59:56,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:59:56,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1104019742, now seen corresponding path program 1 times [2024-11-13 12:59:56,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:59:56,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350102092] [2024-11-13 12:59:56,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:56,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:59:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:56,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 12:59:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:56,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 12:59:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:56,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 12:59:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:56,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 12:59:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:56,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 12:59:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:56,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:59:56,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:59:56,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350102092] [2024-11-13 12:59:56,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350102092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:59:56,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:59:56,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:59:56,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74681685] [2024-11-13 12:59:56,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:59:56,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:59:56,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:59:56,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:59:56,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:59:56,854 INFO L87 Difference]: Start difference. First operand 37050 states and 58060 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:00:07,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:07,026 INFO L93 Difference]: Finished difference Result 148564 states and 235052 transitions. [2024-11-13 13:00:07,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 13:00:07,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2024-11-13 13:00:07,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:07,585 INFO L225 Difference]: With dead ends: 148564 [2024-11-13 13:00:07,585 INFO L226 Difference]: Without dead ends: 111531 [2024-11-13 13:00:07,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-13 13:00:07,756 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 1377 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 3386 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 3445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:07,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 2005 Invalid, 3445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3386 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-13 13:00:07,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111531 states. [2024-11-13 13:00:13,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111531 to 73547. [2024-11-13 13:00:13,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73547 states, 67502 states have (on average 1.514962519629048) internal successors, (102263), 67759 states have internal predecessors, (102263), 4246 states have call successors, (4246), 1542 states have call predecessors, (4246), 1798 states have return successors, (11063), 4501 states have call predecessors, (11063), 4246 states have call successors, (11063) [2024-11-13 13:00:13,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73547 states to 73547 states and 117572 transitions. [2024-11-13 13:00:13,777 INFO L78 Accepts]: Start accepts. Automaton has 73547 states and 117572 transitions. Word has length 151 [2024-11-13 13:00:13,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:13,778 INFO L471 AbstractCegarLoop]: Abstraction has 73547 states and 117572 transitions. [2024-11-13 13:00:13,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:00:13,778 INFO L276 IsEmpty]: Start isEmpty. Operand 73547 states and 117572 transitions. [2024-11-13 13:00:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 13:00:13,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:13,852 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:13,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:00:13,853 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:13,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:13,853 INFO L85 PathProgramCache]: Analyzing trace with hash -946389156, now seen corresponding path program 1 times [2024-11-13 13:00:13,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:13,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689419108] [2024-11-13 13:00:13,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:13,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:14,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:00:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:14,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:00:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:14,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:00:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:14,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 13:00:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:14,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 13:00:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:14,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:14,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:14,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689419108] [2024-11-13 13:00:14,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689419108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:14,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:14,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:00:14,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991661430] [2024-11-13 13:00:14,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:14,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:00:14,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:14,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:00:14,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:00:14,345 INFO L87 Difference]: Start difference. First operand 73547 states and 117572 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)