./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.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_1dc62056-5554-4b1b-ba4c-26f7c114421e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc62056-5554-4b1b-ba4c-26f7c114421e/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_1dc62056-5554-4b1b-ba4c-26f7c114421e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc62056-5554-4b1b-ba4c-26f7c114421e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc62056-5554-4b1b-ba4c-26f7c114421e/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_1dc62056-5554-4b1b-ba4c-26f7c114421e/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 c3ae342bfdc7bf76083bf4321cb5b6b26fe707bda9cd6edf475282aebbd1033a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:38:24,744 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:38:24,851 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc62056-5554-4b1b-ba4c-26f7c114421e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:38:24,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:38:24,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:38:24,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:38:24,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:38:24,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:38:24,905 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:38:24,905 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:38:24,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:38:24,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:38:24,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:38:24,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:38:24,908 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:38:24,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:38:24,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:38:24,908 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:38:24,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:38:24,909 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:38:24,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:38:24,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:38:24,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:38:24,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:38:24,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:38:24,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:38:24,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:38:24,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:38:24,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:38:24,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:38:24,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:38:24,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:38:24,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:38:24,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:38:24,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:38:24,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:38:24,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:38:24,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:38:24,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:38:24,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:38:24,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:38:24,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:38:24,914 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_1dc62056-5554-4b1b-ba4c-26f7c114421e/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 -> c3ae342bfdc7bf76083bf4321cb5b6b26fe707bda9cd6edf475282aebbd1033a [2024-11-13 13:38:25,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:38:25,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:38:25,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:38:25,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:38:25,302 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:38:25,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc62056-5554-4b1b-ba4c-26f7c114421e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c Unable to find full path for "g++" [2024-11-13 13:38:27,382 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:38:27,776 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:38:27,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc62056-5554-4b1b-ba4c-26f7c114421e/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c [2024-11-13 13:38:27,798 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc62056-5554-4b1b-ba4c-26f7c114421e/bin/uautomizer-verify-qhAvR1uOyd/data/1751d3aab/bc57b427168249809ddb832b2ccef1cd/FLAGe15921d0c [2024-11-13 13:38:27,824 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc62056-5554-4b1b-ba4c-26f7c114421e/bin/uautomizer-verify-qhAvR1uOyd/data/1751d3aab/bc57b427168249809ddb832b2ccef1cd [2024-11-13 13:38:27,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:38:27,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:38:27,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:38:27,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:38:27,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:38:27,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:38:27" (1/1) ... [2024-11-13 13:38:27,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6dd1f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:27, skipping insertion in model container [2024-11-13 13:38:27,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:38:27" (1/1) ... [2024-11-13 13:38:27,891 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:38:28,204 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_1dc62056-5554-4b1b-ba4c-26f7c114421e/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c[12764,12777] [2024-11-13 13:38:28,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:38:28,228 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:38:28,303 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_1dc62056-5554-4b1b-ba4c-26f7c114421e/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c[12764,12777] [2024-11-13 13:38:28,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:38:28,329 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:38:28,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28 WrapperNode [2024-11-13 13:38:28,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:38:28,333 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:38:28,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:38:28,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:38:28,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (1/1) ... [2024-11-13 13:38:28,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (1/1) ... [2024-11-13 13:38:28,396 INFO L138 Inliner]: procedures = 21, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 451 [2024-11-13 13:38:28,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:38:28,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:38:28,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:38:28,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:38:28,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (1/1) ... [2024-11-13 13:38:28,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (1/1) ... [2024-11-13 13:38:28,409 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (1/1) ... [2024-11-13 13:38:28,425 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 13:38:28,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (1/1) ... [2024-11-13 13:38:28,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (1/1) ... [2024-11-13 13:38:28,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (1/1) ... [2024-11-13 13:38:28,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (1/1) ... [2024-11-13 13:38:28,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (1/1) ... [2024-11-13 13:38:28,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (1/1) ... [2024-11-13 13:38:28,450 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:38:28,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:38:28,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:38:28,452 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:38:28,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (1/1) ... [2024-11-13 13:38:28,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:38:28,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc62056-5554-4b1b-ba4c-26f7c114421e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:38:28,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc62056-5554-4b1b-ba4c-26f7c114421e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:38:28,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc62056-5554-4b1b-ba4c-26f7c114421e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:38:28,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:38:28,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:38:28,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:38:28,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:38:28,680 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:38:28,683 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:38:29,589 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-13 13:38:29,589 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:38:29,621 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:38:29,625 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:38:29,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:38:29 BoogieIcfgContainer [2024-11-13 13:38:29,625 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:38:29,633 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:38:29,633 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:38:29,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:38:29,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:38:27" (1/3) ... [2024-11-13 13:38:29,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a33204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:38:29, skipping insertion in model container [2024-11-13 13:38:29,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:38:28" (2/3) ... [2024-11-13 13:38:29,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a33204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:38:29, skipping insertion in model container [2024-11-13 13:38:29,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:38:29" (3/3) ... [2024-11-13 13:38:29,656 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.3.ufo.BOUNDED-6.pals.c [2024-11-13 13:38:29,676 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:38:29,680 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_floodmax.3.3.ufo.BOUNDED-6.pals.c that has 1 procedures, 119 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:38:29,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:38:29,804 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;@62c7fe54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:38:29,806 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:38:29,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 117 states have (on average 1.7863247863247864) internal successors, (209), 118 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:29,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-13 13:38:29,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:29,825 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] [2024-11-13 13:38:29,826 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:29,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:29,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1358778630, now seen corresponding path program 1 times [2024-11-13 13:38:29,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:29,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399807099] [2024-11-13 13:38:29,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:29,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:30,274 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 13:38:30,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:30,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399807099] [2024-11-13 13:38:30,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399807099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:30,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:30,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:38:30,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087730752] [2024-11-13 13:38:30,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:30,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:38:30,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:30,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:38:30,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:38:30,320 INFO L87 Difference]: Start difference. First operand has 119 states, 117 states have (on average 1.7863247863247864) internal successors, (209), 118 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:30,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:30,349 INFO L93 Difference]: Finished difference Result 182 states and 316 transitions. [2024-11-13 13:38:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:38:30,352 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-13 13:38:30,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:30,361 INFO L225 Difference]: With dead ends: 182 [2024-11-13 13:38:30,361 INFO L226 Difference]: Without dead ends: 115 [2024-11-13 13:38:30,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:38:30,368 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:30,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:38:30,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-13 13:38:30,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-13 13:38:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.7719298245614035) internal successors, (202), 114 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:30,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 202 transitions. [2024-11-13 13:38:30,408 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 202 transitions. Word has length 37 [2024-11-13 13:38:30,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:30,409 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 202 transitions. [2024-11-13 13:38:30,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 202 transitions. [2024-11-13 13:38:30,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-13 13:38:30,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:30,411 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] [2024-11-13 13:38:30,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:38:30,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:30,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:30,413 INFO L85 PathProgramCache]: Analyzing trace with hash 541130180, now seen corresponding path program 1 times [2024-11-13 13:38:30,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:30,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862648176] [2024-11-13 13:38:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:30,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:30,863 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 13:38:30,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:30,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862648176] [2024-11-13 13:38:30,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862648176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:30,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:30,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:38:30,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085554815] [2024-11-13 13:38:30,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:30,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:38:30,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:30,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:38:30,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:38:30,869 INFO L87 Difference]: Start difference. First operand 115 states and 202 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:31,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:31,033 INFO L93 Difference]: Finished difference Result 235 states and 406 transitions. [2024-11-13 13:38:31,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:38:31,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-13 13:38:31,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:31,038 INFO L225 Difference]: With dead ends: 235 [2024-11-13 13:38:31,040 INFO L226 Difference]: Without dead ends: 173 [2024-11-13 13:38:31,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:38:31,041 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 99 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:31,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 759 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:38:31,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-13 13:38:31,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 115. [2024-11-13 13:38:31,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.5350877192982457) internal successors, (175), 114 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:31,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 175 transitions. [2024-11-13 13:38:31,057 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 175 transitions. Word has length 37 [2024-11-13 13:38:31,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:31,057 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 175 transitions. [2024-11-13 13:38:31,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:31,058 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 175 transitions. [2024-11-13 13:38:31,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 13:38:31,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:31,060 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] [2024-11-13 13:38:31,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:38:31,060 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:31,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:31,061 INFO L85 PathProgramCache]: Analyzing trace with hash 352349197, now seen corresponding path program 1 times [2024-11-13 13:38:31,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:31,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65954190] [2024-11-13 13:38:31,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:31,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:31,318 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 13:38:31,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:31,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65954190] [2024-11-13 13:38:31,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65954190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:31,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:31,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:38:31,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092123142] [2024-11-13 13:38:31,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:31,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:38:31,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:31,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:38:31,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:31,320 INFO L87 Difference]: Start difference. First operand 115 states and 175 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:31,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:31,403 INFO L93 Difference]: Finished difference Result 222 states and 358 transitions. [2024-11-13 13:38:31,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:38:31,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-13 13:38:31,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:31,406 INFO L225 Difference]: With dead ends: 222 [2024-11-13 13:38:31,407 INFO L226 Difference]: Without dead ends: 164 [2024-11-13 13:38:31,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:31,410 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 75 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:31,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 373 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:38:31,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-13 13:38:31,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2024-11-13 13:38:31,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.565217391304348) internal successors, (252), 161 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:31,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 252 transitions. [2024-11-13 13:38:31,435 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 252 transitions. Word has length 63 [2024-11-13 13:38:31,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:31,436 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 252 transitions. [2024-11-13 13:38:31,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:31,437 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 252 transitions. [2024-11-13 13:38:31,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 13:38:31,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:31,439 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] [2024-11-13 13:38:31,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:38:31,439 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:31,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:31,440 INFO L85 PathProgramCache]: Analyzing trace with hash -558324526, now seen corresponding path program 1 times [2024-11-13 13:38:31,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:31,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227625415] [2024-11-13 13:38:31,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:31,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:31,637 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 13:38:31,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:31,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227625415] [2024-11-13 13:38:31,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227625415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:31,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:31,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:38:31,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256382452] [2024-11-13 13:38:31,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:31,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:38:31,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:31,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:38:31,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:31,640 INFO L87 Difference]: Start difference. First operand 162 states and 252 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:31,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:31,677 INFO L93 Difference]: Finished difference Result 269 states and 435 transitions. [2024-11-13 13:38:31,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:38:31,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-13 13:38:31,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:31,681 INFO L225 Difference]: With dead ends: 269 [2024-11-13 13:38:31,681 INFO L226 Difference]: Without dead ends: 211 [2024-11-13 13:38:31,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:31,685 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 84 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:31,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 399 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:38:31,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-13 13:38:31,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 209. [2024-11-13 13:38:31,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.5961538461538463) internal successors, (332), 208 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 332 transitions. [2024-11-13 13:38:31,707 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 332 transitions. Word has length 65 [2024-11-13 13:38:31,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:31,708 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 332 transitions. [2024-11-13 13:38:31,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:31,708 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 332 transitions. [2024-11-13 13:38:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 13:38:31,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:31,713 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] [2024-11-13 13:38:31,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:38:31,713 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:31,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:31,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1745785941, now seen corresponding path program 1 times [2024-11-13 13:38:31,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:31,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368046165] [2024-11-13 13:38:31,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:31,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:31,958 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 13:38:31,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:31,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368046165] [2024-11-13 13:38:31,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368046165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:31,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:31,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:38:31,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29510190] [2024-11-13 13:38:31,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:31,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:38:31,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:31,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:38:31,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:31,960 INFO L87 Difference]: Start difference. First operand 209 states and 332 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:32,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:32,001 INFO L93 Difference]: Finished difference Result 488 states and 803 transitions. [2024-11-13 13:38:32,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:38:32,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-13 13:38:32,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:32,003 INFO L225 Difference]: With dead ends: 488 [2024-11-13 13:38:32,005 INFO L226 Difference]: Without dead ends: 338 [2024-11-13 13:38:32,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:32,009 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 77 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:32,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 386 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:38:32,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-13 13:38:32,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 336. [2024-11-13 13:38:32,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 335 states have (on average 1.6238805970149253) internal successors, (544), 335 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:32,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 544 transitions. [2024-11-13 13:38:32,046 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 544 transitions. Word has length 65 [2024-11-13 13:38:32,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:32,046 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 544 transitions. [2024-11-13 13:38:32,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:32,047 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 544 transitions. [2024-11-13 13:38:32,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 13:38:32,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:32,052 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] [2024-11-13 13:38:32,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:38:32,052 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:32,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:32,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1925121382, now seen corresponding path program 1 times [2024-11-13 13:38:32,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:32,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621933851] [2024-11-13 13:38:32,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:32,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:32,239 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 13:38:32,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:32,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621933851] [2024-11-13 13:38:32,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621933851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:32,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:32,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:38:32,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948139990] [2024-11-13 13:38:32,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:32,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:38:32,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:32,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:38:32,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:32,242 INFO L87 Difference]: Start difference. First operand 336 states and 544 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:32,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:32,280 INFO L93 Difference]: Finished difference Result 609 states and 1003 transitions. [2024-11-13 13:38:32,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:38:32,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-13 13:38:32,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:32,285 INFO L225 Difference]: With dead ends: 609 [2024-11-13 13:38:32,288 INFO L226 Difference]: Without dead ends: 459 [2024-11-13 13:38:32,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:32,291 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 78 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:32,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 391 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:38:32,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-13 13:38:32,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 457. [2024-11-13 13:38:32,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 456 states have (on average 1.6293859649122806) internal successors, (743), 456 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:32,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 743 transitions. [2024-11-13 13:38:32,317 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 743 transitions. Word has length 67 [2024-11-13 13:38:32,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:32,318 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 743 transitions. [2024-11-13 13:38:32,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:32,322 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 743 transitions. [2024-11-13 13:38:32,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 13:38:32,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:32,323 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] [2024-11-13 13:38:32,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:38:32,323 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:32,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:32,323 INFO L85 PathProgramCache]: Analyzing trace with hash -928439395, now seen corresponding path program 1 times [2024-11-13 13:38:32,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:32,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009563822] [2024-11-13 13:38:32,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:32,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:32,522 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 13:38:32,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:32,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009563822] [2024-11-13 13:38:32,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009563822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:32,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:32,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:38:32,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006202495] [2024-11-13 13:38:32,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:32,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:38:32,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:32,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:38:32,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:32,525 INFO L87 Difference]: Start difference. First operand 457 states and 743 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:32,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:32,571 INFO L93 Difference]: Finished difference Result 1178 states and 1942 transitions. [2024-11-13 13:38:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:38:32,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-13 13:38:32,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:32,577 INFO L225 Difference]: With dead ends: 1178 [2024-11-13 13:38:32,577 INFO L226 Difference]: Without dead ends: 786 [2024-11-13 13:38:32,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:32,579 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 71 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:32,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 379 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:38:32,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-11-13 13:38:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 784. [2024-11-13 13:38:32,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.6270753512132823) internal successors, (1274), 783 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:32,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1274 transitions. [2024-11-13 13:38:32,648 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1274 transitions. Word has length 67 [2024-11-13 13:38:32,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:32,649 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 1274 transitions. [2024-11-13 13:38:32,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:32,650 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1274 transitions. [2024-11-13 13:38:32,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 13:38:32,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:32,651 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] [2024-11-13 13:38:32,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:38:32,651 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:32,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:32,652 INFO L85 PathProgramCache]: Analyzing trace with hash -380389534, now seen corresponding path program 1 times [2024-11-13 13:38:32,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:32,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779308986] [2024-11-13 13:38:32,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:32,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:32,817 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 13:38:32,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:32,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779308986] [2024-11-13 13:38:32,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779308986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:32,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:32,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:38:32,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177850931] [2024-11-13 13:38:32,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:32,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:38:32,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:32,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:38:32,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:32,821 INFO L87 Difference]: Start difference. First operand 784 states and 1274 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:32,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:32,879 INFO L93 Difference]: Finished difference Result 1475 states and 2419 transitions. [2024-11-13 13:38:32,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:38:32,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-13 13:38:32,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:32,887 INFO L225 Difference]: With dead ends: 1475 [2024-11-13 13:38:32,887 INFO L226 Difference]: Without dead ends: 1083 [2024-11-13 13:38:32,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:32,889 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 72 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:32,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 383 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:38:32,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2024-11-13 13:38:32,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1081. [2024-11-13 13:38:32,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1080 states have (on average 1.6203703703703705) internal successors, (1750), 1080 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:32,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1750 transitions. [2024-11-13 13:38:32,943 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1750 transitions. Word has length 69 [2024-11-13 13:38:32,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:32,943 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1750 transitions. [2024-11-13 13:38:32,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:32,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1750 transitions. [2024-11-13 13:38:32,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 13:38:32,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:32,944 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] [2024-11-13 13:38:32,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:38:32,945 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:32,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:32,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1075389979, now seen corresponding path program 1 times [2024-11-13 13:38:32,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:32,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171578004] [2024-11-13 13:38:32,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:32,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:33,188 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 13:38:33,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:33,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171578004] [2024-11-13 13:38:33,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171578004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:33,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:33,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:38:33,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771321894] [2024-11-13 13:38:33,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:33,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:38:33,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:33,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:38:33,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:38:33,191 INFO L87 Difference]: Start difference. First operand 1081 states and 1750 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:33,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:33,538 INFO L93 Difference]: Finished difference Result 5482 states and 9073 transitions. [2024-11-13 13:38:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:38:33,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-13 13:38:33,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:33,559 INFO L225 Difference]: With dead ends: 5482 [2024-11-13 13:38:33,559 INFO L226 Difference]: Without dead ends: 4472 [2024-11-13 13:38:33,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:38:33,566 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 584 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:33,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1086 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:38:33,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4472 states. [2024-11-13 13:38:33,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4472 to 2024. [2024-11-13 13:38:33,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2024 states, 2023 states have (on average 1.6173999011369253) internal successors, (3272), 2023 states have internal predecessors, (3272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:33,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 3272 transitions. [2024-11-13 13:38:33,688 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 3272 transitions. Word has length 69 [2024-11-13 13:38:33,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:33,688 INFO L471 AbstractCegarLoop]: Abstraction has 2024 states and 3272 transitions. [2024-11-13 13:38:33,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:33,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 3272 transitions. [2024-11-13 13:38:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 13:38:33,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:33,692 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] [2024-11-13 13:38:33,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:38:33,693 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:33,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:33,693 INFO L85 PathProgramCache]: Analyzing trace with hash -900183669, now seen corresponding path program 1 times [2024-11-13 13:38:33,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:33,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581648732] [2024-11-13 13:38:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:33,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:33,864 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 13:38:33,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:33,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581648732] [2024-11-13 13:38:33,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581648732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:33,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:33,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:38:33,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045807327] [2024-11-13 13:38:33,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:33,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:38:33,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:33,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:38:33,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:38:33,866 INFO L87 Difference]: Start difference. First operand 2024 states and 3272 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:34,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:34,058 INFO L93 Difference]: Finished difference Result 6607 states and 10831 transitions. [2024-11-13 13:38:34,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:38:34,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-13 13:38:34,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:34,079 INFO L225 Difference]: With dead ends: 6607 [2024-11-13 13:38:34,079 INFO L226 Difference]: Without dead ends: 4654 [2024-11-13 13:38:34,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:38:34,083 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 284 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:34,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 495 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:38:34,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4654 states. [2024-11-13 13:38:34,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4654 to 3320. [2024-11-13 13:38:34,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 3319 states have (on average 1.619764989454655) internal successors, (5376), 3319 states have internal predecessors, (5376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:34,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 5376 transitions. [2024-11-13 13:38:34,262 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 5376 transitions. Word has length 70 [2024-11-13 13:38:34,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:34,262 INFO L471 AbstractCegarLoop]: Abstraction has 3320 states and 5376 transitions. [2024-11-13 13:38:34,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:34,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 5376 transitions. [2024-11-13 13:38:34,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 13:38:34,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:34,263 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] [2024-11-13 13:38:34,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:38:34,263 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:34,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:34,264 INFO L85 PathProgramCache]: Analyzing trace with hash 405248988, now seen corresponding path program 1 times [2024-11-13 13:38:34,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:34,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297295317] [2024-11-13 13:38:34,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:34,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:34,408 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 13:38:34,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:34,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297295317] [2024-11-13 13:38:34,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297295317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:34,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:34,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:38:34,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011918583] [2024-11-13 13:38:34,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:34,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:38:34,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:34,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:38:34,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:38:34,411 INFO L87 Difference]: Start difference. First operand 3320 states and 5376 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:34,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:34,711 INFO L93 Difference]: Finished difference Result 10675 states and 17375 transitions. [2024-11-13 13:38:34,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:38:34,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-13 13:38:34,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:34,747 INFO L225 Difference]: With dead ends: 10675 [2024-11-13 13:38:34,747 INFO L226 Difference]: Without dead ends: 7426 [2024-11-13 13:38:34,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:38:34,753 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 282 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:34,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 551 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:38:34,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7426 states. [2024-11-13 13:38:34,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7426 to 5344. [2024-11-13 13:38:35,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.609208309938237) internal successors, (8598), 5343 states have internal predecessors, (8598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:35,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 8598 transitions. [2024-11-13 13:38:35,088 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 8598 transitions. Word has length 71 [2024-11-13 13:38:35,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:35,088 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 8598 transitions. [2024-11-13 13:38:35,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:35,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 8598 transitions. [2024-11-13 13:38:35,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-13 13:38:35,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:35,089 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] [2024-11-13 13:38:35,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:38:35,089 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:35,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:35,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1907007262, now seen corresponding path program 1 times [2024-11-13 13:38:35,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:35,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234776669] [2024-11-13 13:38:35,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:35,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:35,237 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 13:38:35,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:35,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234776669] [2024-11-13 13:38:35,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234776669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:35,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:35,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:38:35,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200606612] [2024-11-13 13:38:35,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:35,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:38:35,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:35,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:38:35,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:38:35,240 INFO L87 Difference]: Start difference. First operand 5344 states and 8598 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:35,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:35,672 INFO L93 Difference]: Finished difference Result 16871 states and 27255 transitions. [2024-11-13 13:38:35,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:38:35,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-13 13:38:35,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:35,729 INFO L225 Difference]: With dead ends: 16871 [2024-11-13 13:38:35,729 INFO L226 Difference]: Without dead ends: 11598 [2024-11-13 13:38:35,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:38:35,737 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 280 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:35,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 553 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:38:35,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11598 states. [2024-11-13 13:38:36,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11598 to 8428. [2024-11-13 13:38:36,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8428 states, 8427 states have (on average 1.5981962738815711) internal successors, (13468), 8427 states have internal predecessors, (13468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:36,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8428 states to 8428 states and 13468 transitions. [2024-11-13 13:38:36,224 INFO L78 Accepts]: Start accepts. Automaton has 8428 states and 13468 transitions. Word has length 72 [2024-11-13 13:38:36,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:36,225 INFO L471 AbstractCegarLoop]: Abstraction has 8428 states and 13468 transitions. [2024-11-13 13:38:36,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:36,225 INFO L276 IsEmpty]: Start isEmpty. Operand 8428 states and 13468 transitions. [2024-11-13 13:38:36,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-13 13:38:36,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:36,226 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] [2024-11-13 13:38:36,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:38:36,227 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:36,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:36,228 INFO L85 PathProgramCache]: Analyzing trace with hash -810466310, now seen corresponding path program 1 times [2024-11-13 13:38:36,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:36,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350671394] [2024-11-13 13:38:36,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:36,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:36,640 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 13:38:36,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:36,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350671394] [2024-11-13 13:38:36,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350671394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:36,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:36,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:38:36,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786064638] [2024-11-13 13:38:36,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:36,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:38:36,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:36,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:38:36,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:38:36,643 INFO L87 Difference]: Start difference. First operand 8428 states and 13468 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:37,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:37,034 INFO L93 Difference]: Finished difference Result 16787 states and 26844 transitions. [2024-11-13 13:38:37,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:38:37,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-13 13:38:37,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:37,063 INFO L225 Difference]: With dead ends: 16787 [2024-11-13 13:38:37,063 INFO L226 Difference]: Without dead ends: 8430 [2024-11-13 13:38:37,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:38:37,076 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 141 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:37,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 459 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:38:37,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2024-11-13 13:38:37,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 8428. [2024-11-13 13:38:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8428 states, 8427 states have (on average 1.5833629998813339) internal successors, (13343), 8427 states have internal predecessors, (13343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:37,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8428 states to 8428 states and 13343 transitions. [2024-11-13 13:38:37,575 INFO L78 Accepts]: Start accepts. Automaton has 8428 states and 13343 transitions. Word has length 74 [2024-11-13 13:38:37,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:37,575 INFO L471 AbstractCegarLoop]: Abstraction has 8428 states and 13343 transitions. [2024-11-13 13:38:37,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:37,576 INFO L276 IsEmpty]: Start isEmpty. Operand 8428 states and 13343 transitions. [2024-11-13 13:38:37,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 13:38:37,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:37,577 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] [2024-11-13 13:38:37,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 13:38:37,577 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:37,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:37,578 INFO L85 PathProgramCache]: Analyzing trace with hash -887771361, now seen corresponding path program 1 times [2024-11-13 13:38:37,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:37,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567260475] [2024-11-13 13:38:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:37,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:37,894 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 13:38:37,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:37,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567260475] [2024-11-13 13:38:37,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567260475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:37,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:37,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:38:37,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836970552] [2024-11-13 13:38:37,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:37,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:38:37,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:37,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:38:37,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:38:37,896 INFO L87 Difference]: Start difference. First operand 8428 states and 13343 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:38,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:38,372 INFO L93 Difference]: Finished difference Result 24145 states and 38378 transitions. [2024-11-13 13:38:38,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:38:38,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-13 13:38:38,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:38,416 INFO L225 Difference]: With dead ends: 24145 [2024-11-13 13:38:38,416 INFO L226 Difference]: Without dead ends: 15788 [2024-11-13 13:38:38,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:38:38,428 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 69 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:38,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 616 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:38:38,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15788 states. [2024-11-13 13:38:38,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15788 to 15786. [2024-11-13 13:38:38,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15786 states, 15785 states have (on average 1.5671840354767184) internal successors, (24738), 15785 states have internal predecessors, (24738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:39,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15786 states to 15786 states and 24738 transitions. [2024-11-13 13:38:39,045 INFO L78 Accepts]: Start accepts. Automaton has 15786 states and 24738 transitions. Word has length 77 [2024-11-13 13:38:39,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:39,046 INFO L471 AbstractCegarLoop]: Abstraction has 15786 states and 24738 transitions. [2024-11-13 13:38:39,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:39,047 INFO L276 IsEmpty]: Start isEmpty. Operand 15786 states and 24738 transitions. [2024-11-13 13:38:39,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 13:38:39,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:39,048 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] [2024-11-13 13:38:39,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:38:39,048 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:39,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:39,049 INFO L85 PathProgramCache]: Analyzing trace with hash 2115283171, now seen corresponding path program 1 times [2024-11-13 13:38:39,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:39,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560164440] [2024-11-13 13:38:39,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:39,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:39,560 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 13:38:39,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:39,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560164440] [2024-11-13 13:38:39,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560164440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:39,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:39,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:38:39,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452691814] [2024-11-13 13:38:39,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:39,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:38:39,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:39,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:38:39,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:38:39,566 INFO L87 Difference]: Start difference. First operand 15786 states and 24738 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:39,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:39,961 INFO L93 Difference]: Finished difference Result 16874 states and 26187 transitions. [2024-11-13 13:38:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:38:39,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-13 13:38:39,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:40,015 INFO L225 Difference]: With dead ends: 16874 [2024-11-13 13:38:40,015 INFO L226 Difference]: Without dead ends: 16872 [2024-11-13 13:38:40,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:38:40,025 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 0 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:40,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 674 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:38:40,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16872 states. [2024-11-13 13:38:40,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16872 to 16872. [2024-11-13 13:38:40,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16872 states, 16871 states have (on average 1.5301404777428724) internal successors, (25815), 16871 states have internal predecessors, (25815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:40,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16872 states to 16872 states and 25815 transitions. [2024-11-13 13:38:40,715 INFO L78 Accepts]: Start accepts. Automaton has 16872 states and 25815 transitions. Word has length 78 [2024-11-13 13:38:40,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:40,715 INFO L471 AbstractCegarLoop]: Abstraction has 16872 states and 25815 transitions. [2024-11-13 13:38:40,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:40,716 INFO L276 IsEmpty]: Start isEmpty. Operand 16872 states and 25815 transitions. [2024-11-13 13:38:40,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 13:38:40,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:40,725 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:40,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:38:40,725 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:40,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:40,726 INFO L85 PathProgramCache]: Analyzing trace with hash 557052895, now seen corresponding path program 1 times [2024-11-13 13:38:40,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:40,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146383207] [2024-11-13 13:38:40,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:40,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:40,870 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:38:40,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:40,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146383207] [2024-11-13 13:38:40,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146383207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:40,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:40,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:38:40,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000479562] [2024-11-13 13:38:40,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:40,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:38:40,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:40,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:38:40,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:40,874 INFO L87 Difference]: Start difference. First operand 16872 states and 25815 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:41,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:41,531 INFO L93 Difference]: Finished difference Result 50355 states and 76975 transitions. [2024-11-13 13:38:41,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:38:41,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 13:38:41,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:41,625 INFO L225 Difference]: With dead ends: 50355 [2024-11-13 13:38:41,625 INFO L226 Difference]: Without dead ends: 33550 [2024-11-13 13:38:41,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:41,646 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 111 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:41,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 411 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:38:41,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33550 states. [2024-11-13 13:38:42,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33550 to 33548. [2024-11-13 13:38:42,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33548 states, 33547 states have (on average 1.5150982204071899) internal successors, (50827), 33547 states have internal predecessors, (50827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:42,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33548 states to 33548 states and 50827 transitions. [2024-11-13 13:38:42,453 INFO L78 Accepts]: Start accepts. Automaton has 33548 states and 50827 transitions. Word has length 103 [2024-11-13 13:38:42,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:42,454 INFO L471 AbstractCegarLoop]: Abstraction has 33548 states and 50827 transitions. [2024-11-13 13:38:42,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:42,454 INFO L276 IsEmpty]: Start isEmpty. Operand 33548 states and 50827 transitions. [2024-11-13 13:38:42,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 13:38:42,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:42,459 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:42,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 13:38:42,459 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:42,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:42,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1671533564, now seen corresponding path program 1 times [2024-11-13 13:38:42,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:42,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154939472] [2024-11-13 13:38:42,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:42,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:42,612 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:38:42,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:42,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154939472] [2024-11-13 13:38:42,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154939472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:42,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:42,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:38:42,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763549110] [2024-11-13 13:38:42,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:42,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:38:42,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:42,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:38:42,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:42,616 INFO L87 Difference]: Start difference. First operand 33548 states and 50827 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:44,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:44,065 INFO L93 Difference]: Finished difference Result 100168 states and 151615 transitions. [2024-11-13 13:38:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:38:44,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 13:38:44,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:44,279 INFO L225 Difference]: With dead ends: 100168 [2024-11-13 13:38:44,279 INFO L226 Difference]: Without dead ends: 66721 [2024-11-13 13:38:44,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:44,323 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 96 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:44,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 386 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:38:44,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66721 states. [2024-11-13 13:38:46,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66721 to 66719. [2024-11-13 13:38:46,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66719 states, 66718 states have (on average 1.49991006924668) internal successors, (100071), 66718 states have internal predecessors, (100071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66719 states to 66719 states and 100071 transitions. [2024-11-13 13:38:46,744 INFO L78 Accepts]: Start accepts. Automaton has 66719 states and 100071 transitions. Word has length 103 [2024-11-13 13:38:46,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:46,744 INFO L471 AbstractCegarLoop]: Abstraction has 66719 states and 100071 transitions. [2024-11-13 13:38:46,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:46,745 INFO L276 IsEmpty]: Start isEmpty. Operand 66719 states and 100071 transitions. [2024-11-13 13:38:46,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 13:38:46,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:46,754 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:46,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:38:46,755 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:46,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:46,756 INFO L85 PathProgramCache]: Analyzing trace with hash 874012951, now seen corresponding path program 1 times [2024-11-13 13:38:46,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:46,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988967109] [2024-11-13 13:38:46,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:46,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:46,955 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 13:38:46,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:46,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988967109] [2024-11-13 13:38:46,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988967109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:46,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:46,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:38:46,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727388990] [2024-11-13 13:38:46,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:46,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:38:46,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:46,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:38:46,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:46,958 INFO L87 Difference]: Start difference. First operand 66719 states and 100071 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:49,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:49,063 INFO L93 Difference]: Finished difference Result 199271 states and 298596 transitions. [2024-11-13 13:38:49,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:38:49,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 13:38:49,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:49,602 INFO L225 Difference]: With dead ends: 199271 [2024-11-13 13:38:49,603 INFO L226 Difference]: Without dead ends: 132729 [2024-11-13 13:38:49,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:49,651 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 110 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:49,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 401 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:38:49,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132729 states. [2024-11-13 13:38:52,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132729 to 132727. [2024-11-13 13:38:52,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132727 states, 132726 states have (on average 1.4846224552838179) internal successors, (197048), 132726 states have internal predecessors, (197048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:53,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132727 states to 132727 states and 197048 transitions. [2024-11-13 13:38:53,258 INFO L78 Accepts]: Start accepts. Automaton has 132727 states and 197048 transitions. Word has length 103 [2024-11-13 13:38:53,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:53,259 INFO L471 AbstractCegarLoop]: Abstraction has 132727 states and 197048 transitions. [2024-11-13 13:38:53,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:53,260 INFO L276 IsEmpty]: Start isEmpty. Operand 132727 states and 197048 transitions. [2024-11-13 13:38:53,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 13:38:53,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:53,276 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:53,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:38:53,276 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:53,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:53,277 INFO L85 PathProgramCache]: Analyzing trace with hash -119783769, now seen corresponding path program 1 times [2024-11-13 13:38:53,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:38:53,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656287509] [2024-11-13 13:38:53,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:53,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:38:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:38:53,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:38:53,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656287509] [2024-11-13 13:38:53,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656287509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:38:53,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:38:53,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:38:53,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038622155] [2024-11-13 13:38:53,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:53,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:38:53,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:38:53,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:38:53,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:53,708 INFO L87 Difference]: Start difference. First operand 132727 states and 197048 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:38:57,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:57,786 INFO L93 Difference]: Finished difference Result 396375 states and 587895 transitions. [2024-11-13 13:38:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:38:57,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 13:38:57,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:58,305 INFO L225 Difference]: With dead ends: 396375 [2024-11-13 13:38:58,305 INFO L226 Difference]: Without dead ends: 264057 [2024-11-13 13:38:58,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:38:58,403 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 130 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:58,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 417 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:38:58,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264057 states. [2024-11-13 13:39:03,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264057 to 264055. [2024-11-13 13:39:03,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264055 states, 264054 states have (on average 1.4692184174449165) internal successors, (387953), 264054 states have internal predecessors, (387953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:39:04,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264055 states to 264055 states and 387953 transitions. [2024-11-13 13:39:04,344 INFO L78 Accepts]: Start accepts. Automaton has 264055 states and 387953 transitions. Word has length 103 [2024-11-13 13:39:04,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:39:04,344 INFO L471 AbstractCegarLoop]: Abstraction has 264055 states and 387953 transitions. [2024-11-13 13:39:04,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:39:04,345 INFO L276 IsEmpty]: Start isEmpty. Operand 264055 states and 387953 transitions. [2024-11-13 13:39:04,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 13:39:04,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:39:04,364 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:39:04,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 13:39:04,364 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:39:04,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:39:04,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1017177047, now seen corresponding path program 1 times [2024-11-13 13:39:04,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:39:04,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284044755] [2024-11-13 13:39:04,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:39:04,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:39:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:39:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 13:39:04,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:39:04,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284044755] [2024-11-13 13:39:04,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284044755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:39:04,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:39:04,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:39:04,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079860916] [2024-11-13 13:39:04,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:39:04,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:39:04,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:39:04,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:39:04,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:39:04,453 INFO L87 Difference]: Start difference. First operand 264055 states and 387953 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:39:10,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:39:10,096 INFO L93 Difference]: Finished difference Result 557067 states and 823483 transitions. [2024-11-13 13:39:10,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:39:10,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 13:39:10,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:39:10,940 INFO L225 Difference]: With dead ends: 557067 [2024-11-13 13:39:10,940 INFO L226 Difference]: Without dead ends: 427145 [2024-11-13 13:39:11,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:39:11,057 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 60 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:39:11,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 314 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:39:11,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427145 states.