./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.3.1.ufo.UNBOUNDED.pals+Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/combinations/pals_lcr.3.1.ufo.UNBOUNDED.pals+Problem12_label04.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '12e64e5880a6492945a65c8a75846fcd1e471751df63fa7462470a498bbbc9fb'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.3.1.ufo.UNBOUNDED.pals+Problem12_label04.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 12e64e5880a6492945a65c8a75846fcd1e471751df63fa7462470a498bbbc9fb --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:23:57,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:23:57,252 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:23:57,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:23:57,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:23:57,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:23:57,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:23:57,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:23:57,279 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:23:57,280 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:23:57,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:23:57,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:23:57,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:23:57,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:23:57,280 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:23:57,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:23:57,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:23:57,280 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:23:57,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:23:57,281 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:23:57,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:23:57,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:23:57,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:23:57,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:23:57,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:23:57,281 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:23:57,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:23:57,281 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:23:57,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:23:57,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:23:57,282 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:23:57,282 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:23:57,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:23:57,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:23:57,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:23:57,282 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:23:57,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:23:57,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:23:57,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:23:57,283 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:23:57,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:23:57,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:23:57,283 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> 12e64e5880a6492945a65c8a75846fcd1e471751df63fa7462470a498bbbc9fb [2024-11-07 01:23:57,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:23:57,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:23:57,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:23:57,530 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:23:57,530 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:23:57,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.3.1.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-07 01:23:58,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:23:59,125 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:23:59,127 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.1.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-07 01:23:59,155 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/62d435892/60fc712336ab4d1e9c34cf95760ec0cb/FLAGe99dcf4ac [2024-11-07 01:23:59,232 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/62d435892/60fc712336ab4d1e9c34cf95760ec0cb [2024-11-07 01:23:59,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:23:59,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:23:59,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:23:59,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:23:59,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:23:59,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:59" (1/1) ... [2024-11-07 01:23:59,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377b2e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:59, skipping insertion in model container [2024-11-07 01:23:59,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:59" (1/1) ... [2024-11-07 01:23:59,319 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:23:59,554 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.1.ufo.UNBOUNDED.pals+Problem12_label04.c[6487,6500] [2024-11-07 01:23:59,609 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.1.ufo.UNBOUNDED.pals+Problem12_label04.c[13548,13561] [2024-11-07 01:23:59,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:24:00,004 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:24:00,025 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.1.ufo.UNBOUNDED.pals+Problem12_label04.c[6487,6500] [2024-11-07 01:24:00,032 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.3.1.ufo.UNBOUNDED.pals+Problem12_label04.c[13548,13561] [2024-11-07 01:24:00,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:24:00,315 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:24:00,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00 WrapperNode [2024-11-07 01:24:00,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:24:00,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:24:00,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:24:00,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:24:00,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (1/1) ... [2024-11-07 01:24:00,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (1/1) ... [2024-11-07 01:24:00,744 INFO L138 Inliner]: procedures = 35, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 4984 [2024-11-07 01:24:00,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:24:00,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:24:00,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:24:00,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:24:00,752 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (1/1) ... [2024-11-07 01:24:00,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (1/1) ... [2024-11-07 01:24:00,811 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (1/1) ... [2024-11-07 01:24:00,979 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]. [2024-11-07 01:24:00,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (1/1) ... [2024-11-07 01:24:00,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (1/1) ... [2024-11-07 01:24:01,073 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (1/1) ... [2024-11-07 01:24:01,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (1/1) ... [2024-11-07 01:24:01,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (1/1) ... [2024-11-07 01:24:01,153 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (1/1) ... [2024-11-07 01:24:01,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:24:01,230 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:24:01,230 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:24:01,230 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:24:01,232 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (1/1) ... [2024-11-07 01:24:01,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:24:01,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:24:01,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 01:24:01,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 01:24:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:24:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:24:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:24:01,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:24:01,363 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:24:01,365 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:24:04,803 INFO L? ?]: Removed 734 outVars from TransFormulas that were not future-live. [2024-11-07 01:24:04,803 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:24:04,827 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:24:04,828 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 01:24:04,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:24:04 BoogieIcfgContainer [2024-11-07 01:24:04,829 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:24:04,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:24:04,831 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:24:04,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:24:04,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:23:59" (1/3) ... [2024-11-07 01:24:04,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371b0a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:24:04, skipping insertion in model container [2024-11-07 01:24:04,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:00" (2/3) ... [2024-11-07 01:24:04,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371b0a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:24:04, skipping insertion in model container [2024-11-07 01:24:04,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:24:04" (3/3) ... [2024-11-07 01:24:04,837 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-07 01:24:04,848 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:24:04,848 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:24:04,914 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:24:04,923 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;@3a4e862c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:24:04,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:24:04,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 874 states, 871 states have (on average 1.9058553386911596) internal successors, (1660), 873 states have internal predecessors, (1660), 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) [2024-11-07 01:24:04,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-07 01:24:04,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:04,939 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] [2024-11-07 01:24:04,940 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:04,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:04,943 INFO L85 PathProgramCache]: Analyzing trace with hash -934405548, now seen corresponding path program 1 times [2024-11-07 01:24:04,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:04,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981324093] [2024-11-07 01:24:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:04,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:05,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:05,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981324093] [2024-11-07 01:24:05,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981324093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:05,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:05,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 01:24:05,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266448845] [2024-11-07 01:24:05,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:05,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 01:24:05,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:05,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 01:24:05,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 01:24:05,136 INFO L87 Difference]: Start difference. First operand has 874 states, 871 states have (on average 1.9058553386911596) internal successors, (1660), 873 states have internal predecessors, (1660), 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 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-11-07 01:24:05,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:05,220 INFO L93 Difference]: Finished difference Result 1724 states and 3278 transitions. [2024-11-07 01:24:05,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 01:24:05,222 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2024-11-07 01:24:05,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:05,241 INFO L225 Difference]: With dead ends: 1724 [2024-11-07 01:24:05,241 INFO L226 Difference]: Without dead ends: 808 [2024-11-07 01:24:05,245 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 [2024-11-07 01:24:05,247 INFO L432 NwaCegarLoop]: 1591 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, 1591 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 [2024-11-07 01:24:05,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1591 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:05,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-07 01:24:05,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 808. [2024-11-07 01:24:05,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 806 states have (on average 1.8945409429280398) internal successors, (1527), 807 states have internal predecessors, (1527), 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) [2024-11-07 01:24:05,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1527 transitions. [2024-11-07 01:24:05,306 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1527 transitions. Word has length 20 [2024-11-07 01:24:05,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:05,307 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1527 transitions. [2024-11-07 01:24:05,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 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) [2024-11-07 01:24:05,307 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1527 transitions. [2024-11-07 01:24:05,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-07 01:24:05,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:05,308 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] [2024-11-07 01:24:05,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:24:05,310 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:05,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:05,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1945522798, now seen corresponding path program 1 times [2024-11-07 01:24:05,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:05,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011707664] [2024-11-07 01:24:05,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:05,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:05,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:05,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:05,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011707664] [2024-11-07 01:24:05,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011707664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:05,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:05,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:24:05,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810514807] [2024-11-07 01:24:05,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:05,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:24:05,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:05,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:24:05,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:24:05,489 INFO L87 Difference]: Start difference. First operand 808 states and 1527 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-07 01:24:05,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:05,620 INFO L93 Difference]: Finished difference Result 844 states and 1581 transitions. [2024-11-07 01:24:05,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:24:05,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2024-11-07 01:24:05,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:05,623 INFO L225 Difference]: With dead ends: 844 [2024-11-07 01:24:05,624 INFO L226 Difference]: Without dead ends: 808 [2024-11-07 01:24:05,624 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 [2024-11-07 01:24:05,625 INFO L432 NwaCegarLoop]: 1525 mSDtfsCounter, 0 mSDsluCounter, 4554 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6079 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:05,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6079 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:05,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-07 01:24:05,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 808. [2024-11-07 01:24:05,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 806 states have (on average 1.8746898263027296) internal successors, (1511), 807 states have internal predecessors, (1511), 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) [2024-11-07 01:24:05,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1511 transitions. [2024-11-07 01:24:05,657 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1511 transitions. Word has length 20 [2024-11-07 01:24:05,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:05,657 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1511 transitions. [2024-11-07 01:24:05,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-07 01:24:05,660 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1511 transitions. [2024-11-07 01:24:05,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-07 01:24:05,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:05,661 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] [2024-11-07 01:24:05,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:24:05,661 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:05,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:05,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1226597962, now seen corresponding path program 1 times [2024-11-07 01:24:05,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:05,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902091695] [2024-11-07 01:24:05,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:05,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:05,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:05,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:05,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902091695] [2024-11-07 01:24:05,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902091695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:05,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:05,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:24:05,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122961501] [2024-11-07 01:24:05,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:05,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:24:05,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:05,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:24:05,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:24:05,890 INFO L87 Difference]: Start difference. First operand 808 states and 1511 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-07 01:24:06,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:06,004 INFO L93 Difference]: Finished difference Result 1000 states and 1811 transitions. [2024-11-07 01:24:06,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:24:06,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2024-11-07 01:24:06,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:06,010 INFO L225 Difference]: With dead ends: 1000 [2024-11-07 01:24:06,010 INFO L226 Difference]: Without dead ends: 968 [2024-11-07 01:24:06,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:24:06,011 INFO L432 NwaCegarLoop]: 1505 mSDtfsCounter, 4682 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4682 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:06,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4682 Valid, 1758 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:24:06,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-11-07 01:24:06,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 838. [2024-11-07 01:24:06,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 836 states have (on average 1.8636363636363635) internal successors, (1558), 837 states have internal predecessors, (1558), 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) [2024-11-07 01:24:06,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1558 transitions. [2024-11-07 01:24:06,032 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1558 transitions. Word has length 35 [2024-11-07 01:24:06,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:06,033 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1558 transitions. [2024-11-07 01:24:06,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-07 01:24:06,033 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1558 transitions. [2024-11-07 01:24:06,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-07 01:24:06,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:06,035 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] [2024-11-07 01:24:06,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:24:06,036 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:06,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:06,038 INFO L85 PathProgramCache]: Analyzing trace with hash 523901274, now seen corresponding path program 1 times [2024-11-07 01:24:06,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:06,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244441886] [2024-11-07 01:24:06,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:06,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:06,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:06,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:06,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244441886] [2024-11-07 01:24:06,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244441886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:06,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:06,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:24:06,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854640793] [2024-11-07 01:24:06,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:06,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:24:06,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:06,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:24:06,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:24:06,122 INFO L87 Difference]: Start difference. First operand 838 states and 1558 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 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) [2024-11-07 01:24:06,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:06,154 INFO L93 Difference]: Finished difference Result 951 states and 1733 transitions. [2024-11-07 01:24:06,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:24:06,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 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 [2024-11-07 01:24:06,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:06,158 INFO L225 Difference]: With dead ends: 951 [2024-11-07 01:24:06,158 INFO L226 Difference]: Without dead ends: 889 [2024-11-07 01:24:06,158 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 [2024-11-07 01:24:06,159 INFO L432 NwaCegarLoop]: 1507 mSDtfsCounter, 1468 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:06,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 1550 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:06,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-11-07 01:24:06,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 885. [2024-11-07 01:24:06,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 883 states have (on average 1.8437146092865233) internal successors, (1628), 884 states have internal predecessors, (1628), 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) [2024-11-07 01:24:06,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1628 transitions. [2024-11-07 01:24:06,179 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1628 transitions. Word has length 37 [2024-11-07 01:24:06,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:06,180 INFO L471 AbstractCegarLoop]: Abstraction has 885 states and 1628 transitions. [2024-11-07 01:24:06,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 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) [2024-11-07 01:24:06,180 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1628 transitions. [2024-11-07 01:24:06,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-07 01:24:06,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:06,182 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] [2024-11-07 01:24:06,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:24:06,182 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:06,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:06,182 INFO L85 PathProgramCache]: Analyzing trace with hash 590394786, now seen corresponding path program 1 times [2024-11-07 01:24:06,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:06,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375009675] [2024-11-07 01:24:06,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:06,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:06,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:06,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375009675] [2024-11-07 01:24:06,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375009675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:06,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:06,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:24:06,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873102884] [2024-11-07 01:24:06,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:06,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:24:06,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:06,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:24:06,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:24:06,332 INFO L87 Difference]: Start difference. First operand 885 states and 1628 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) [2024-11-07 01:24:06,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:06,392 INFO L93 Difference]: Finished difference Result 996 states and 1796 transitions. [2024-11-07 01:24:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:24:06,393 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 [2024-11-07 01:24:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:06,396 INFO L225 Difference]: With dead ends: 996 [2024-11-07 01:24:06,396 INFO L226 Difference]: Without dead ends: 887 [2024-11-07 01:24:06,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:24:06,397 INFO L432 NwaCegarLoop]: 1506 mSDtfsCounter, 2952 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2952 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:06,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2952 Valid, 1598 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:06,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-07 01:24:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 885. [2024-11-07 01:24:06,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 883 states have (on average 1.8414496036240091) internal successors, (1626), 884 states have internal predecessors, (1626), 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) [2024-11-07 01:24:06,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1626 transitions. [2024-11-07 01:24:06,415 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1626 transitions. Word has length 37 [2024-11-07 01:24:06,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:06,415 INFO L471 AbstractCegarLoop]: Abstraction has 885 states and 1626 transitions. [2024-11-07 01:24:06,415 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) [2024-11-07 01:24:06,415 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1626 transitions. [2024-11-07 01:24:06,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-07 01:24:06,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:06,416 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] [2024-11-07 01:24:06,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:24:06,416 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:06,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:06,417 INFO L85 PathProgramCache]: Analyzing trace with hash 707645968, now seen corresponding path program 1 times [2024-11-07 01:24:06,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:06,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465390764] [2024-11-07 01:24:06,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:06,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:06,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:06,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:06,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465390764] [2024-11-07 01:24:06,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465390764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:06,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:06,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:24:06,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069963304] [2024-11-07 01:24:06,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:06,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:24:06,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:06,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:24:06,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:24:06,591 INFO L87 Difference]: Start difference. First operand 885 states and 1626 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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) [2024-11-07 01:24:06,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:06,649 INFO L93 Difference]: Finished difference Result 893 states and 1635 transitions. [2024-11-07 01:24:06,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 01:24:06,651 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 38 [2024-11-07 01:24:06,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:06,655 INFO L225 Difference]: With dead ends: 893 [2024-11-07 01:24:06,655 INFO L226 Difference]: Without dead ends: 891 [2024-11-07 01:24:06,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:24:06,659 INFO L432 NwaCegarLoop]: 1505 mSDtfsCounter, 0 mSDsluCounter, 9017 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10522 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:06,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10522 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:06,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-07 01:24:06,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 891. [2024-11-07 01:24:06,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 889 states have (on average 1.8346456692913387) internal successors, (1631), 890 states have internal predecessors, (1631), 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) [2024-11-07 01:24:06,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1631 transitions. [2024-11-07 01:24:06,681 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1631 transitions. Word has length 38 [2024-11-07 01:24:06,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:06,682 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1631 transitions. [2024-11-07 01:24:06,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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) [2024-11-07 01:24:06,682 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1631 transitions. [2024-11-07 01:24:06,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-07 01:24:06,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:06,682 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] [2024-11-07 01:24:06,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:24:06,683 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:06,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:06,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1903217474, now seen corresponding path program 1 times [2024-11-07 01:24:06,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:06,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098688237] [2024-11-07 01:24:06,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:06,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:06,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:06,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098688237] [2024-11-07 01:24:06,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098688237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:06,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:06,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:24:06,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317961278] [2024-11-07 01:24:06,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:06,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:24:06,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:06,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:24:06,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:24:06,732 INFO L87 Difference]: Start difference. First operand 891 states and 1631 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-07 01:24:06,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:06,759 INFO L93 Difference]: Finished difference Result 1105 states and 1943 transitions. [2024-11-07 01:24:06,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:24:06,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2024-11-07 01:24:06,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:06,762 INFO L225 Difference]: With dead ends: 1105 [2024-11-07 01:24:06,763 INFO L226 Difference]: Without dead ends: 990 [2024-11-07 01:24:06,763 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 [2024-11-07 01:24:06,764 INFO L432 NwaCegarLoop]: 1528 mSDtfsCounter, 1475 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:06,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 1587 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:06,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2024-11-07 01:24:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 988. [2024-11-07 01:24:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 986 states have (on average 1.793103448275862) internal successors, (1768), 987 states have internal predecessors, (1768), 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) [2024-11-07 01:24:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1768 transitions. [2024-11-07 01:24:06,804 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1768 transitions. Word has length 39 [2024-11-07 01:24:06,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:06,806 INFO L471 AbstractCegarLoop]: Abstraction has 988 states and 1768 transitions. [2024-11-07 01:24:06,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-07 01:24:06,806 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1768 transitions. [2024-11-07 01:24:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-07 01:24:06,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:06,806 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] [2024-11-07 01:24:06,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:24:06,807 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:06,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:06,808 INFO L85 PathProgramCache]: Analyzing trace with hash 122284610, now seen corresponding path program 1 times [2024-11-07 01:24:06,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:06,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085126554] [2024-11-07 01:24:06,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:06,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:06,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:06,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085126554] [2024-11-07 01:24:06,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085126554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:06,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:06,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:24:06,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339345097] [2024-11-07 01:24:06,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:06,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:24:06,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:06,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:24:06,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:24:06,866 INFO L87 Difference]: Start difference. First operand 988 states and 1768 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-07 01:24:06,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:06,891 INFO L93 Difference]: Finished difference Result 1380 states and 2326 transitions. [2024-11-07 01:24:06,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:24:06,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2024-11-07 01:24:06,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:06,896 INFO L225 Difference]: With dead ends: 1380 [2024-11-07 01:24:06,896 INFO L226 Difference]: Without dead ends: 1168 [2024-11-07 01:24:06,897 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 [2024-11-07 01:24:06,898 INFO L432 NwaCegarLoop]: 1538 mSDtfsCounter, 1477 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:06,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 1593 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:06,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-11-07 01:24:06,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1166. [2024-11-07 01:24:06,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 1164 states have (on average 1.7268041237113403) internal successors, (2010), 1165 states have internal predecessors, (2010), 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) [2024-11-07 01:24:06,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 2010 transitions. [2024-11-07 01:24:06,922 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 2010 transitions. Word has length 39 [2024-11-07 01:24:06,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:06,922 INFO L471 AbstractCegarLoop]: Abstraction has 1166 states and 2010 transitions. [2024-11-07 01:24:06,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-07 01:24:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 2010 transitions. [2024-11-07 01:24:06,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-07 01:24:06,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:06,923 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] [2024-11-07 01:24:06,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:24:06,924 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:06,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:06,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1688735299, now seen corresponding path program 1 times [2024-11-07 01:24:06,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:06,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854714236] [2024-11-07 01:24:06,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:06,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:06,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:06,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:06,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854714236] [2024-11-07 01:24:06,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854714236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:06,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:06,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:24:06,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044025147] [2024-11-07 01:24:06,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:06,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:24:06,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:06,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:24:06,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:24:06,968 INFO L87 Difference]: Start difference. First operand 1166 states and 2010 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-11-07 01:24:06,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:06,996 INFO L93 Difference]: Finished difference Result 1589 states and 2616 transitions. [2024-11-07 01:24:06,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:24:06,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2024-11-07 01:24:06,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:07,002 INFO L225 Difference]: With dead ends: 1589 [2024-11-07 01:24:07,003 INFO L226 Difference]: Without dead ends: 1354 [2024-11-07 01:24:07,004 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 [2024-11-07 01:24:07,006 INFO L432 NwaCegarLoop]: 1543 mSDtfsCounter, 1476 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:07,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 1594 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:07,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2024-11-07 01:24:07,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1352. [2024-11-07 01:24:07,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 1350 states have (on average 1.677037037037037) internal successors, (2264), 1351 states have internal predecessors, (2264), 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) [2024-11-07 01:24:07,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 2264 transitions. [2024-11-07 01:24:07,037 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 2264 transitions. Word has length 41 [2024-11-07 01:24:07,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:07,037 INFO L471 AbstractCegarLoop]: Abstraction has 1352 states and 2264 transitions. [2024-11-07 01:24:07,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-11-07 01:24:07,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 2264 transitions. [2024-11-07 01:24:07,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-07 01:24:07,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:07,039 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:24:07,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:24:07,039 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:07,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:07,042 INFO L85 PathProgramCache]: Analyzing trace with hash 923003988, now seen corresponding path program 1 times [2024-11-07 01:24:07,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:07,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222505243] [2024-11-07 01:24:07,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:07,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:07,149 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 01:24:07,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:07,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222505243] [2024-11-07 01:24:07,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222505243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:07,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:07,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:24:07,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637430298] [2024-11-07 01:24:07,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:07,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:24:07,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:07,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:24:07,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:24:07,151 INFO L87 Difference]: Start difference. First operand 1352 states and 2264 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-07 01:24:07,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:07,243 INFO L93 Difference]: Finished difference Result 3208 states and 4844 transitions. [2024-11-07 01:24:07,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:24:07,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 54 [2024-11-07 01:24:07,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:07,253 INFO L225 Difference]: With dead ends: 3208 [2024-11-07 01:24:07,253 INFO L226 Difference]: Without dead ends: 2634 [2024-11-07 01:24:07,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:24:07,254 INFO L432 NwaCegarLoop]: 1551 mSDtfsCounter, 3057 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3057 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:07,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3057 Valid, 3155 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:07,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2024-11-07 01:24:07,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 1924. [2024-11-07 01:24:07,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1924 states, 1922 states have (on average 1.5879292403746097) internal successors, (3052), 1923 states have internal predecessors, (3052), 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) [2024-11-07 01:24:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 3052 transitions. [2024-11-07 01:24:07,302 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 3052 transitions. Word has length 54 [2024-11-07 01:24:07,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:07,302 INFO L471 AbstractCegarLoop]: Abstraction has 1924 states and 3052 transitions. [2024-11-07 01:24:07,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-07 01:24:07,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 3052 transitions. [2024-11-07 01:24:07,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-07 01:24:07,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:07,303 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:24:07,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:24:07,303 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:07,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:07,304 INFO L85 PathProgramCache]: Analyzing trace with hash -857928876, now seen corresponding path program 1 times [2024-11-07 01:24:07,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:07,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198162523] [2024-11-07 01:24:07,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:07,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 01:24:07,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:07,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198162523] [2024-11-07 01:24:07,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198162523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:07,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:07,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:24:07,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072851578] [2024-11-07 01:24:07,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:07,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:24:07,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:07,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:24:07,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:24:07,403 INFO L87 Difference]: Start difference. First operand 1924 states and 3052 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2024-11-07 01:24:07,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:07,494 INFO L93 Difference]: Finished difference Result 3780 states and 5632 transitions. [2024-11-07 01:24:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:24:07,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 54 [2024-11-07 01:24:07,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:07,506 INFO L225 Difference]: With dead ends: 3780 [2024-11-07 01:24:07,506 INFO L226 Difference]: Without dead ends: 3206 [2024-11-07 01:24:07,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:24:07,509 INFO L432 NwaCegarLoop]: 1552 mSDtfsCounter, 3049 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3049 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:07,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3049 Valid, 3170 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:07,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2024-11-07 01:24:07,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 2784. [2024-11-07 01:24:07,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2782 states have (on average 1.518332135154565) internal successors, (4224), 2783 states have internal predecessors, (4224), 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) [2024-11-07 01:24:07,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 4224 transitions. [2024-11-07 01:24:07,568 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 4224 transitions. Word has length 54 [2024-11-07 01:24:07,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:07,568 INFO L471 AbstractCegarLoop]: Abstraction has 2784 states and 4224 transitions. [2024-11-07 01:24:07,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2024-11-07 01:24:07,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 4224 transitions. [2024-11-07 01:24:07,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 01:24:07,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:07,569 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:24:07,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:24:07,570 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:07,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:07,570 INFO L85 PathProgramCache]: Analyzing trace with hash 894361900, now seen corresponding path program 1 times [2024-11-07 01:24:07,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:07,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983963817] [2024-11-07 01:24:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:07,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:07,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:07,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983963817] [2024-11-07 01:24:07,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983963817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:07,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:07,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:24:07,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901319450] [2024-11-07 01:24:07,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:07,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:24:07,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:07,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:24:07,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:24:07,669 INFO L87 Difference]: Start difference. First operand 2784 states and 4224 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-07 01:24:07,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:07,709 INFO L93 Difference]: Finished difference Result 4260 states and 6287 transitions. [2024-11-07 01:24:07,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:24:07,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2024-11-07 01:24:07,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:07,718 INFO L225 Difference]: With dead ends: 4260 [2024-11-07 01:24:07,718 INFO L226 Difference]: Without dead ends: 2254 [2024-11-07 01:24:07,721 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 [2024-11-07 01:24:07,722 INFO L432 NwaCegarLoop]: 1535 mSDtfsCounter, 34 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:07,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3031 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:07,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2024-11-07 01:24:07,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 2252. [2024-11-07 01:24:07,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 2250 states have (on average 1.5537777777777777) internal successors, (3496), 2251 states have internal predecessors, (3496), 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) [2024-11-07 01:24:07,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3496 transitions. [2024-11-07 01:24:07,782 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3496 transitions. Word has length 56 [2024-11-07 01:24:07,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:07,783 INFO L471 AbstractCegarLoop]: Abstraction has 2252 states and 3496 transitions. [2024-11-07 01:24:07,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-07 01:24:07,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3496 transitions. [2024-11-07 01:24:07,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 01:24:07,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:07,787 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:24:07,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:24:07,787 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:07,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:07,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1218909775, now seen corresponding path program 1 times [2024-11-07 01:24:07,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:07,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202297671] [2024-11-07 01:24:07,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:07,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 01:24:07,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:07,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202297671] [2024-11-07 01:24:07,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202297671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:07,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:07,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:24:07,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874833975] [2024-11-07 01:24:07,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:07,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:24:07,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:07,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:24:07,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:24:07,885 INFO L87 Difference]: Start difference. First operand 2252 states and 3496 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-11-07 01:24:07,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:07,975 INFO L93 Difference]: Finished difference Result 3508 states and 5252 transitions. [2024-11-07 01:24:07,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:24:07,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 56 [2024-11-07 01:24:07,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:07,985 INFO L225 Difference]: With dead ends: 3508 [2024-11-07 01:24:07,985 INFO L226 Difference]: Without dead ends: 3090 [2024-11-07 01:24:07,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:24:07,987 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 3051 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3051 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:07,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3051 Valid, 3147 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:07,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2024-11-07 01:24:08,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 2668. [2024-11-07 01:24:08,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2668 states, 2666 states have (on average 1.5273818454613652) internal successors, (4072), 2667 states have internal predecessors, (4072), 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) [2024-11-07 01:24:08,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2668 states to 2668 states and 4072 transitions. [2024-11-07 01:24:08,055 INFO L78 Accepts]: Start accepts. Automaton has 2668 states and 4072 transitions. Word has length 56 [2024-11-07 01:24:08,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:08,055 INFO L471 AbstractCegarLoop]: Abstraction has 2668 states and 4072 transitions. [2024-11-07 01:24:08,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-11-07 01:24:08,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2668 states and 4072 transitions. [2024-11-07 01:24:08,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 01:24:08,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:08,056 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:24:08,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 01:24:08,057 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:08,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:08,057 INFO L85 PathProgramCache]: Analyzing trace with hash -877348108, now seen corresponding path program 1 times [2024-11-07 01:24:08,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:08,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339742251] [2024-11-07 01:24:08,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:08,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:08,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:08,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339742251] [2024-11-07 01:24:08,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339742251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:08,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:08,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:24:08,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213439167] [2024-11-07 01:24:08,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:08,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:24:08,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:08,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:24:08,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:24:08,130 INFO L87 Difference]: Start difference. First operand 2668 states and 4072 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-11-07 01:24:08,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:08,168 INFO L93 Difference]: Finished difference Result 3608 states and 5370 transitions. [2024-11-07 01:24:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:24:08,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2024-11-07 01:24:08,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:08,174 INFO L225 Difference]: With dead ends: 3608 [2024-11-07 01:24:08,174 INFO L226 Difference]: Without dead ends: 1734 [2024-11-07 01:24:08,176 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 [2024-11-07 01:24:08,177 INFO L432 NwaCegarLoop]: 1528 mSDtfsCounter, 29 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:08,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3016 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:08,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2024-11-07 01:24:08,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1732. [2024-11-07 01:24:08,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.5942196531791908) internal successors, (2758), 1731 states have internal predecessors, (2758), 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) [2024-11-07 01:24:08,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2758 transitions. [2024-11-07 01:24:08,219 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2758 transitions. Word has length 57 [2024-11-07 01:24:08,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:08,219 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2758 transitions. [2024-11-07 01:24:08,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-11-07 01:24:08,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2758 transitions. [2024-11-07 01:24:08,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-07 01:24:08,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:08,220 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:24:08,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 01:24:08,220 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:08,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:08,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1226511174, now seen corresponding path program 1 times [2024-11-07 01:24:08,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:08,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617699364] [2024-11-07 01:24:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:08,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:08,296 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:08,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:08,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617699364] [2024-11-07 01:24:08,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617699364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:08,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:08,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:24:08,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342755126] [2024-11-07 01:24:08,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:08,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:24:08,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:08,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:24:08,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:24:08,297 INFO L87 Difference]: Start difference. First operand 1732 states and 2758 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-07 01:24:08,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:08,325 INFO L93 Difference]: Finished difference Result 2204 states and 3399 transitions. [2024-11-07 01:24:08,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:24:08,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2024-11-07 01:24:08,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:08,329 INFO L225 Difference]: With dead ends: 2204 [2024-11-07 01:24:08,329 INFO L226 Difference]: Without dead ends: 1266 [2024-11-07 01:24:08,330 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 [2024-11-07 01:24:08,330 INFO L432 NwaCegarLoop]: 1521 mSDtfsCounter, 26 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:08,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3001 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:24:08,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-11-07 01:24:08,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1264. [2024-11-07 01:24:08,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1262 states have (on average 1.6719492868462758) internal successors, (2110), 1263 states have internal predecessors, (2110), 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) [2024-11-07 01:24:08,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2110 transitions. [2024-11-07 01:24:08,351 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2110 transitions. Word has length 59 [2024-11-07 01:24:08,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:08,351 INFO L471 AbstractCegarLoop]: Abstraction has 1264 states and 2110 transitions. [2024-11-07 01:24:08,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-07 01:24:08,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2110 transitions. [2024-11-07 01:24:08,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 01:24:08,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:08,352 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:24:08,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 01:24:08,352 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:08,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:08,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1826022888, now seen corresponding path program 1 times [2024-11-07 01:24:08,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:08,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496692408] [2024-11-07 01:24:08,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:08,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:09,548 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:09,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:09,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496692408] [2024-11-07 01:24:09,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496692408] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:24:09,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25435593] [2024-11-07 01:24:09,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:09,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:24:09,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:24:09,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:24:09,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 01:24:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:09,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 01:24:09,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:24:09,847 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 01:24:09,847 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:24:10,001 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 01:24:10,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25435593] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:24:10,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:24:10,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-11-07 01:24:10,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962997337] [2024-11-07 01:24:10,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:24:10,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 01:24:10,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:10,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 01:24:10,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-07 01:24:10,003 INFO L87 Difference]: Start difference. First operand 1264 states and 2110 transitions. Second operand has 19 states, 19 states have (on average 8.736842105263158) internal successors, (166), 19 states have internal predecessors, (166), 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) [2024-11-07 01:24:11,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:11,606 INFO L93 Difference]: Finished difference Result 3665 states and 5284 transitions. [2024-11-07 01:24:11,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-07 01:24:11,606 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.736842105263158) internal successors, (166), 19 states have internal predecessors, (166), 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 61 [2024-11-07 01:24:11,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:11,614 INFO L225 Difference]: With dead ends: 3665 [2024-11-07 01:24:11,614 INFO L226 Difference]: Without dead ends: 3195 [2024-11-07 01:24:11,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=545, Invalid=2535, Unknown=0, NotChecked=0, Total=3080 [2024-11-07 01:24:11,616 INFO L432 NwaCegarLoop]: 1499 mSDtfsCounter, 14347 mSDsluCounter, 7682 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14347 SdHoareTripleChecker+Valid, 9181 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:11,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14347 Valid, 9181 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 01:24:11,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2024-11-07 01:24:11,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 3161. [2024-11-07 01:24:11,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3161 states, 3159 states have (on average 1.4102564102564104) internal successors, (4455), 3160 states have internal predecessors, (4455), 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) [2024-11-07 01:24:11,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3161 states to 3161 states and 4455 transitions. [2024-11-07 01:24:11,684 INFO L78 Accepts]: Start accepts. Automaton has 3161 states and 4455 transitions. Word has length 61 [2024-11-07 01:24:11,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:11,684 INFO L471 AbstractCegarLoop]: Abstraction has 3161 states and 4455 transitions. [2024-11-07 01:24:11,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.736842105263158) internal successors, (166), 19 states have internal predecessors, (166), 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) [2024-11-07 01:24:11,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3161 states and 4455 transitions. [2024-11-07 01:24:11,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 01:24:11,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:11,685 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] [2024-11-07 01:24:11,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 01:24:11,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-07 01:24:11,886 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:11,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:11,887 INFO L85 PathProgramCache]: Analyzing trace with hash -651882757, now seen corresponding path program 1 times [2024-11-07 01:24:11,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:11,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835407131] [2024-11-07 01:24:11,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:11,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:11,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:11,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:11,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835407131] [2024-11-07 01:24:11,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835407131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:24:11,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:24:11,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 01:24:11,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316161177] [2024-11-07 01:24:11,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:24:11,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:24:11,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:11,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:24:11,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:24:11,932 INFO L87 Difference]: Start difference. First operand 3161 states and 4455 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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) [2024-11-07 01:24:14,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:14,696 INFO L93 Difference]: Finished difference Result 4665 states and 7328 transitions. [2024-11-07 01:24:14,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:24:14,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 61 [2024-11-07 01:24:14,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:14,703 INFO L225 Difference]: With dead ends: 4665 [2024-11-07 01:24:14,703 INFO L226 Difference]: Without dead ends: 3912 [2024-11-07 01:24:14,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:24:14,705 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 826 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 3275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 998 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:14,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 149 Invalid, 3275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [998 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-07 01:24:14,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2024-11-07 01:24:14,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3912. [2024-11-07 01:24:14,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3912 states, 3910 states have (on average 1.4910485933503836) internal successors, (5830), 3911 states have internal predecessors, (5830), 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) [2024-11-07 01:24:14,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3912 states to 3912 states and 5830 transitions. [2024-11-07 01:24:14,782 INFO L78 Accepts]: Start accepts. Automaton has 3912 states and 5830 transitions. Word has length 61 [2024-11-07 01:24:14,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:14,782 INFO L471 AbstractCegarLoop]: Abstraction has 3912 states and 5830 transitions. [2024-11-07 01:24:14,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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) [2024-11-07 01:24:14,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3912 states and 5830 transitions. [2024-11-07 01:24:14,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-07 01:24:14,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:14,783 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:24:14,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 01:24:14,783 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:14,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:14,784 INFO L85 PathProgramCache]: Analyzing trace with hash 459765187, now seen corresponding path program 1 times [2024-11-07 01:24:14,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:14,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936183935] [2024-11-07 01:24:14,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:14,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:16,163 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:16,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:16,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936183935] [2024-11-07 01:24:16,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936183935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:24:16,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258893171] [2024-11-07 01:24:16,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:16,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:24:16,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:24:16,166 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:24:16,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 01:24:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:16,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 01:24:16,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:24:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:16,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:24:17,048 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:17,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258893171] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:24:17,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:24:17,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-11-07 01:24:17,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215945947] [2024-11-07 01:24:17,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:24:17,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-07 01:24:17,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:17,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-07 01:24:17,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2024-11-07 01:24:17,051 INFO L87 Difference]: Start difference. First operand 3912 states and 5830 transitions. Second operand has 26 states, 26 states have (on average 5.769230769230769) internal successors, (150), 25 states have internal predecessors, (150), 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) [2024-11-07 01:24:17,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:17,503 INFO L93 Difference]: Finished difference Result 8019 states and 11020 transitions. [2024-11-07 01:24:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:24:17,504 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.769230769230769) internal successors, (150), 25 states have internal predecessors, (150), 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 62 [2024-11-07 01:24:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:17,514 INFO L225 Difference]: With dead ends: 8019 [2024-11-07 01:24:17,514 INFO L226 Difference]: Without dead ends: 6060 [2024-11-07 01:24:17,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=287, Invalid=1045, Unknown=0, NotChecked=0, Total=1332 [2024-11-07 01:24:17,519 INFO L432 NwaCegarLoop]: 1495 mSDtfsCounter, 12051 mSDsluCounter, 4782 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12051 SdHoareTripleChecker+Valid, 6277 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:17,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12051 Valid, 6277 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 01:24:17,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6060 states. [2024-11-07 01:24:17,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6060 to 5994. [2024-11-07 01:24:17,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5994 states, 5992 states have (on average 1.395026702269693) internal successors, (8359), 5993 states have internal predecessors, (8359), 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) [2024-11-07 01:24:17,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5994 states to 5994 states and 8359 transitions. [2024-11-07 01:24:17,666 INFO L78 Accepts]: Start accepts. Automaton has 5994 states and 8359 transitions. Word has length 62 [2024-11-07 01:24:17,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:17,666 INFO L471 AbstractCegarLoop]: Abstraction has 5994 states and 8359 transitions. [2024-11-07 01:24:17,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.769230769230769) internal successors, (150), 25 states have internal predecessors, (150), 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) [2024-11-07 01:24:17,666 INFO L276 IsEmpty]: Start isEmpty. Operand 5994 states and 8359 transitions. [2024-11-07 01:24:17,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-07 01:24:17,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:17,667 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] [2024-11-07 01:24:17,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 01:24:17,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 01:24:17,868 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:17,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:17,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1147902773, now seen corresponding path program 1 times [2024-11-07 01:24:17,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:17,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198414607] [2024-11-07 01:24:17,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:17,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:18,094 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:18,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:18,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198414607] [2024-11-07 01:24:18,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198414607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:24:18,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390463274] [2024-11-07 01:24:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:18,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:24:18,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:24:18,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:24:18,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 01:24:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:18,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 01:24:18,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:24:18,619 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:18,619 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:24:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:19,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390463274] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:24:19,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:24:19,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-07 01:24:19,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042188607] [2024-11-07 01:24:19,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:24:19,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-07 01:24:19,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:19,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-07 01:24:19,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2024-11-07 01:24:19,211 INFO L87 Difference]: Start difference. First operand 5994 states and 8359 transitions. Second operand has 32 states, 32 states have (on average 4.9375) internal successors, (158), 32 states have internal predecessors, (158), 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) [2024-11-07 01:24:21,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:21,458 INFO L93 Difference]: Finished difference Result 14015 states and 18419 transitions. [2024-11-07 01:24:21,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-07 01:24:21,458 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.9375) internal successors, (158), 32 states have internal predecessors, (158), 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 62 [2024-11-07 01:24:21,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:21,472 INFO L225 Difference]: With dead ends: 14015 [2024-11-07 01:24:21,473 INFO L226 Difference]: Without dead ends: 10055 [2024-11-07 01:24:21,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1630 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1214, Invalid=5592, Unknown=0, NotChecked=0, Total=6806 [2024-11-07 01:24:21,477 INFO L432 NwaCegarLoop]: 1508 mSDtfsCounter, 20416 mSDsluCounter, 16805 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20416 SdHoareTripleChecker+Valid, 18313 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:21,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20416 Valid, 18313 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 01:24:21,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10055 states. [2024-11-07 01:24:21,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10055 to 6653. [2024-11-07 01:24:21,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6653 states, 6651 states have (on average 1.3794918057434973) internal successors, (9175), 6652 states have internal predecessors, (9175), 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) [2024-11-07 01:24:21,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6653 states to 6653 states and 9175 transitions. [2024-11-07 01:24:21,606 INFO L78 Accepts]: Start accepts. Automaton has 6653 states and 9175 transitions. Word has length 62 [2024-11-07 01:24:21,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:21,606 INFO L471 AbstractCegarLoop]: Abstraction has 6653 states and 9175 transitions. [2024-11-07 01:24:21,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.9375) internal successors, (158), 32 states have internal predecessors, (158), 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) [2024-11-07 01:24:21,606 INFO L276 IsEmpty]: Start isEmpty. Operand 6653 states and 9175 transitions. [2024-11-07 01:24:21,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-07 01:24:21,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:21,607 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:24:21,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 01:24:21,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:24:21,808 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:21,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:21,808 INFO L85 PathProgramCache]: Analyzing trace with hash 807603108, now seen corresponding path program 1 times [2024-11-07 01:24:21,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:21,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136995933] [2024-11-07 01:24:21,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:21,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:22,053 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:22,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:22,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136995933] [2024-11-07 01:24:22,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136995933] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:24:22,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088436812] [2024-11-07 01:24:22,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:22,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:24:22,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:24:22,056 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:24:22,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 01:24:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:22,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-07 01:24:22,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:24:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:23,173 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:24:23,814 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:23,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088436812] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:24:23,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:24:23,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 26 [2024-11-07 01:24:23,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762534524] [2024-11-07 01:24:23,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:24:23,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-07 01:24:23,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:23,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-07 01:24:23,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2024-11-07 01:24:23,816 INFO L87 Difference]: Start difference. First operand 6653 states and 9175 transitions. Second operand has 27 states, 27 states have (on average 6.111111111111111) internal successors, (165), 26 states have internal predecessors, (165), 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) [2024-11-07 01:24:25,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:25,049 INFO L93 Difference]: Finished difference Result 13303 states and 17478 transitions. [2024-11-07 01:24:25,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-07 01:24:25,050 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.111111111111111) internal successors, (165), 26 states have internal predecessors, (165), 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 [2024-11-07 01:24:25,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:25,065 INFO L225 Difference]: With dead ends: 13303 [2024-11-07 01:24:25,065 INFO L226 Difference]: Without dead ends: 8989 [2024-11-07 01:24:25,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=637, Invalid=2015, Unknown=0, NotChecked=0, Total=2652 [2024-11-07 01:24:25,070 INFO L432 NwaCegarLoop]: 1514 mSDtfsCounter, 17081 mSDsluCounter, 5061 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17081 SdHoareTripleChecker+Valid, 6575 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:25,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17081 Valid, 6575 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 01:24:25,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8989 states. [2024-11-07 01:24:25,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8989 to 8565. [2024-11-07 01:24:25,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8565 states, 8563 states have (on average 1.3383160107438983) internal successors, (11460), 8564 states have internal predecessors, (11460), 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) [2024-11-07 01:24:25,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8565 states to 8565 states and 11460 transitions. [2024-11-07 01:24:25,267 INFO L78 Accepts]: Start accepts. Automaton has 8565 states and 11460 transitions. Word has length 63 [2024-11-07 01:24:25,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:25,267 INFO L471 AbstractCegarLoop]: Abstraction has 8565 states and 11460 transitions. [2024-11-07 01:24:25,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.111111111111111) internal successors, (165), 26 states have internal predecessors, (165), 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) [2024-11-07 01:24:25,267 INFO L276 IsEmpty]: Start isEmpty. Operand 8565 states and 11460 transitions. [2024-11-07 01:24:25,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-07 01:24:25,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:25,268 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] [2024-11-07 01:24:25,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 01:24:25,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:24:25,472 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:25,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:25,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1786741782, now seen corresponding path program 1 times [2024-11-07 01:24:25,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:25,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563531429] [2024-11-07 01:24:25,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:25,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:26,639 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:26,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:26,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563531429] [2024-11-07 01:24:26,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563531429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:24:26,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191461971] [2024-11-07 01:24:26,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:26,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:24:26,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:24:26,642 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:24:26,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 01:24:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:26,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-07 01:24:26,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:24:28,897 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:28,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:24:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:30,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191461971] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:24:30,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:24:30,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18, 15] total 51 [2024-11-07 01:24:30,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362572373] [2024-11-07 01:24:30,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:24:30,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-07 01:24:30,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:30,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-07 01:24:30,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=2308, Unknown=0, NotChecked=0, Total=2550 [2024-11-07 01:24:30,083 INFO L87 Difference]: Start difference. First operand 8565 states and 11460 transitions. Second operand has 51 states, 51 states have (on average 3.411764705882353) internal successors, (174), 51 states have internal predecessors, (174), 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) [2024-11-07 01:24:45,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:45,261 INFO L93 Difference]: Finished difference Result 15291 states and 19717 transitions. [2024-11-07 01:24:45,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-07 01:24:45,262 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 3.411764705882353) internal successors, (174), 51 states have internal predecessors, (174), 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 [2024-11-07 01:24:45,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:45,280 INFO L225 Difference]: With dead ends: 15291 [2024-11-07 01:24:45,281 INFO L226 Difference]: Without dead ends: 12452 [2024-11-07 01:24:45,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5729 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=4031, Invalid=15991, Unknown=0, NotChecked=0, Total=20022 [2024-11-07 01:24:45,288 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 23531 mSDsluCounter, 20536 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23531 SdHoareTripleChecker+Valid, 22072 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:45,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23531 Valid, 22072 Invalid, 2161 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [133 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:24:45,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12452 states. [2024-11-07 01:24:45,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12452 to 10636. [2024-11-07 01:24:45,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10636 states, 10634 states have (on average 1.3189768666541282) internal successors, (14026), 10635 states have internal predecessors, (14026), 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) [2024-11-07 01:24:45,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10636 states to 10636 states and 14026 transitions. [2024-11-07 01:24:45,674 INFO L78 Accepts]: Start accepts. Automaton has 10636 states and 14026 transitions. Word has length 63 [2024-11-07 01:24:45,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:45,675 INFO L471 AbstractCegarLoop]: Abstraction has 10636 states and 14026 transitions. [2024-11-07 01:24:45,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.411764705882353) internal successors, (174), 51 states have internal predecessors, (174), 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) [2024-11-07 01:24:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand 10636 states and 14026 transitions. [2024-11-07 01:24:45,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-07 01:24:45,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:45,675 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] [2024-11-07 01:24:45,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 01:24:45,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:24:45,876 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:45,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:45,877 INFO L85 PathProgramCache]: Analyzing trace with hash 532152701, now seen corresponding path program 1 times [2024-11-07 01:24:45,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:45,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726560949] [2024-11-07 01:24:45,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:45,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:46,561 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:46,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:46,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726560949] [2024-11-07 01:24:46,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726560949] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:24:46,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332889765] [2024-11-07 01:24:46,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:46,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:24:46,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:24:46,565 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:24:46,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 01:24:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:46,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 01:24:46,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:24:47,436 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:47,436 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:24:47,819 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:47,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332889765] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:24:47,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:24:47,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 34 [2024-11-07 01:24:47,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136063713] [2024-11-07 01:24:47,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:24:47,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-07 01:24:47,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:47,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-07 01:24:47,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=985, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 01:24:47,820 INFO L87 Difference]: Start difference. First operand 10636 states and 14026 transitions. Second operand has 34 states, 34 states have (on average 5.0) internal successors, (170), 34 states have internal predecessors, (170), 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) [2024-11-07 01:24:49,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:24:49,905 INFO L93 Difference]: Finished difference Result 14134 states and 18303 transitions. [2024-11-07 01:24:49,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-07 01:24:49,908 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.0) internal successors, (170), 34 states have internal predecessors, (170), 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 64 [2024-11-07 01:24:49,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:24:49,922 INFO L225 Difference]: With dead ends: 14134 [2024-11-07 01:24:49,922 INFO L226 Difference]: Without dead ends: 10323 [2024-11-07 01:24:49,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=822, Invalid=2960, Unknown=0, NotChecked=0, Total=3782 [2024-11-07 01:24:49,927 INFO L432 NwaCegarLoop]: 1517 mSDtfsCounter, 17257 mSDsluCounter, 15658 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17257 SdHoareTripleChecker+Valid, 17175 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:24:49,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17257 Valid, 17175 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:24:49,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10323 states. [2024-11-07 01:24:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10323 to 8705. [2024-11-07 01:24:50,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8705 states, 8703 states have (on average 1.3340227507755946) internal successors, (11610), 8704 states have internal predecessors, (11610), 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) [2024-11-07 01:24:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8705 states to 8705 states and 11610 transitions. [2024-11-07 01:24:50,267 INFO L78 Accepts]: Start accepts. Automaton has 8705 states and 11610 transitions. Word has length 64 [2024-11-07 01:24:50,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:24:50,267 INFO L471 AbstractCegarLoop]: Abstraction has 8705 states and 11610 transitions. [2024-11-07 01:24:50,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.0) internal successors, (170), 34 states have internal predecessors, (170), 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) [2024-11-07 01:24:50,267 INFO L276 IsEmpty]: Start isEmpty. Operand 8705 states and 11610 transitions. [2024-11-07 01:24:50,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:24:50,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:24:50,268 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:24:50,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 01:24:50,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-07 01:24:50,468 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:24:50,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:24:50,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1624666796, now seen corresponding path program 1 times [2024-11-07 01:24:50,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:24:50,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541059778] [2024-11-07 01:24:50,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:50,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:24:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:51,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:24:51,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541059778] [2024-11-07 01:24:51,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541059778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:24:51,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264521766] [2024-11-07 01:24:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:24:51,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:24:51,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:24:51,583 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:24:51,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 01:24:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:24:51,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 01:24:51,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:24:52,057 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:52,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:24:52,955 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:24:52,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264521766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:24:52,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:24:52,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 12, 12] total 42 [2024-11-07 01:24:52,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638502556] [2024-11-07 01:24:52,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:24:52,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-07 01:24:52,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:24:52,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-07 01:24:52,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1593, Unknown=0, NotChecked=0, Total=1722 [2024-11-07 01:24:52,957 INFO L87 Difference]: Start difference. First operand 8705 states and 11610 transitions. Second operand has 42 states, 42 states have (on average 3.880952380952381) internal successors, (163), 42 states have internal predecessors, (163), 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) [2024-11-07 01:25:00,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:25:00,355 INFO L93 Difference]: Finished difference Result 22615 states and 28660 transitions. [2024-11-07 01:25:00,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-07 01:25:00,355 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.880952380952381) internal successors, (163), 42 states have internal predecessors, (163), 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 [2024-11-07 01:25:00,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:25:00,373 INFO L225 Difference]: With dead ends: 22615 [2024-11-07 01:25:00,374 INFO L226 Difference]: Without dead ends: 18184 [2024-11-07 01:25:00,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2605 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=2435, Invalid=9121, Unknown=0, NotChecked=0, Total=11556 [2024-11-07 01:25:00,381 INFO L432 NwaCegarLoop]: 1583 mSDtfsCounter, 16695 mSDsluCounter, 32347 mSDsCounter, 0 mSdLazyCounter, 3135 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16695 SdHoareTripleChecker+Valid, 33930 SdHoareTripleChecker+Invalid, 3211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:25:00,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16695 Valid, 33930 Invalid, 3211 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 3135 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:25:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18184 states. [2024-11-07 01:25:00,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18184 to 5862. [2024-11-07 01:25:00,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5862 states, 5860 states have (on average 1.392320819112628) internal successors, (8159), 5861 states have internal predecessors, (8159), 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) [2024-11-07 01:25:00,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5862 states to 5862 states and 8159 transitions. [2024-11-07 01:25:00,662 INFO L78 Accepts]: Start accepts. Automaton has 5862 states and 8159 transitions. Word has length 65 [2024-11-07 01:25:00,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:25:00,662 INFO L471 AbstractCegarLoop]: Abstraction has 5862 states and 8159 transitions. [2024-11-07 01:25:00,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.880952380952381) internal successors, (163), 42 states have internal predecessors, (163), 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) [2024-11-07 01:25:00,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5862 states and 8159 transitions. [2024-11-07 01:25:00,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-07 01:25:00,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:25:00,663 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-07 01:25:00,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 01:25:00,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:25:00,864 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:25:00,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:25:00,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1065912349, now seen corresponding path program 1 times [2024-11-07 01:25:00,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:25:00,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571280620] [2024-11-07 01:25:00,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:25:00,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:25:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:25:01,336 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 31 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:25:01,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:25:01,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571280620] [2024-11-07 01:25:01,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571280620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:25:01,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669120218] [2024-11-07 01:25:01,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:25:01,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:25:01,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:25:01,339 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:25:01,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 01:25:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:25:01,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-07 01:25:01,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:25:02,012 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 33 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:25:02,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:25:03,139 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 31 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:25:03,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669120218] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:25:03,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:25:03,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 26 [2024-11-07 01:25:03,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239322471] [2024-11-07 01:25:03,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:25:03,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-07 01:25:03,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:25:03,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-07 01:25:03,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2024-11-07 01:25:03,140 INFO L87 Difference]: Start difference. First operand 5862 states and 8159 transitions. Second operand has 27 states, 27 states have (on average 8.333333333333334) internal successors, (225), 26 states have internal predecessors, (225), 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) [2024-11-07 01:25:04,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:25:04,124 INFO L93 Difference]: Finished difference Result 15432 states and 20087 transitions. [2024-11-07 01:25:04,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 01:25:04,124 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 8.333333333333334) internal successors, (225), 26 states have internal predecessors, (225), 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 [2024-11-07 01:25:04,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:25:04,140 INFO L225 Difference]: With dead ends: 15432 [2024-11-07 01:25:04,140 INFO L226 Difference]: Without dead ends: 11433 [2024-11-07 01:25:04,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=381, Invalid=1341, Unknown=0, NotChecked=0, Total=1722 [2024-11-07 01:25:04,144 INFO L432 NwaCegarLoop]: 1516 mSDtfsCounter, 16364 mSDsluCounter, 12108 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16364 SdHoareTripleChecker+Valid, 13624 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:25:04,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16364 Valid, 13624 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 01:25:04,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11433 states. [2024-11-07 01:25:04,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11433 to 10613. [2024-11-07 01:25:04,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10613 states, 10611 states have (on average 1.308641975308642) internal successors, (13886), 10612 states have internal predecessors, (13886), 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) [2024-11-07 01:25:04,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10613 states to 10613 states and 13886 transitions. [2024-11-07 01:25:04,560 INFO L78 Accepts]: Start accepts. Automaton has 10613 states and 13886 transitions. Word has length 103 [2024-11-07 01:25:04,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:25:04,560 INFO L471 AbstractCegarLoop]: Abstraction has 10613 states and 13886 transitions. [2024-11-07 01:25:04,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 8.333333333333334) internal successors, (225), 26 states have internal predecessors, (225), 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) [2024-11-07 01:25:04,560 INFO L276 IsEmpty]: Start isEmpty. Operand 10613 states and 13886 transitions. [2024-11-07 01:25:04,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-07 01:25:04,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:25:04,562 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-07 01:25:04,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 01:25:04,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:25:04,762 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:25:04,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:25:04,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1754049935, now seen corresponding path program 1 times [2024-11-07 01:25:04,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:25:04,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376164697] [2024-11-07 01:25:04,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:25:04,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:25:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:25:05,171 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 34 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:25:05,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:25:05,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376164697] [2024-11-07 01:25:05,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376164697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:25:05,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034193344] [2024-11-07 01:25:05,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:25:05,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:25:05,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:25:05,174 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:25:05,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 01:25:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:25:05,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-07 01:25:05,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:25:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 38 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:25:05,822 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:25:06,685 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 34 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:25:06,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034193344] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:25:06,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:25:06,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 26 [2024-11-07 01:25:06,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847850533] [2024-11-07 01:25:06,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:25:06,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-07 01:25:06,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:25:06,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-07 01:25:06,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2024-11-07 01:25:06,686 INFO L87 Difference]: Start difference. First operand 10613 states and 13886 transitions. Second operand has 27 states, 27 states have (on average 8.037037037037036) internal successors, (217), 26 states have internal predecessors, (217), 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) [2024-11-07 01:25:07,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:25:07,515 INFO L93 Difference]: Finished difference Result 15323 states and 19650 transitions. [2024-11-07 01:25:07,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 01:25:07,515 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 8.037037037037036) internal successors, (217), 26 states have internal predecessors, (217), 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 [2024-11-07 01:25:07,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:25:07,524 INFO L225 Difference]: With dead ends: 15323 [2024-11-07 01:25:07,524 INFO L226 Difference]: Without dead ends: 9611 [2024-11-07 01:25:07,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=347, Invalid=1293, Unknown=0, NotChecked=0, Total=1640 [2024-11-07 01:25:07,530 INFO L432 NwaCegarLoop]: 1515 mSDtfsCounter, 11912 mSDsluCounter, 9164 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11912 SdHoareTripleChecker+Valid, 10679 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:25:07,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11912 Valid, 10679 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 01:25:07,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9611 states. [2024-11-07 01:25:08,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9611 to 9519. [2024-11-07 01:25:08,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9519 states, 9517 states have (on average 1.3104970053588316) internal successors, (12472), 9518 states have internal predecessors, (12472), 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) [2024-11-07 01:25:08,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9519 states to 9519 states and 12472 transitions. [2024-11-07 01:25:08,039 INFO L78 Accepts]: Start accepts. Automaton has 9519 states and 12472 transitions. Word has length 103 [2024-11-07 01:25:08,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:25:08,039 INFO L471 AbstractCegarLoop]: Abstraction has 9519 states and 12472 transitions. [2024-11-07 01:25:08,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 8.037037037037036) internal successors, (217), 26 states have internal predecessors, (217), 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) [2024-11-07 01:25:08,039 INFO L276 IsEmpty]: Start isEmpty. Operand 9519 states and 12472 transitions. [2024-11-07 01:25:08,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-07 01:25:08,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:25:08,041 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-07 01:25:08,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-07 01:25:08,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:25:08,245 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:25:08,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:25:08,246 INFO L85 PathProgramCache]: Analyzing trace with hash 856710688, now seen corresponding path program 1 times [2024-11-07 01:25:08,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:25:08,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289534559] [2024-11-07 01:25:08,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:25:08,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:25:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:25:09,000 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-07 01:25:09,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:25:09,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289534559] [2024-11-07 01:25:09,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289534559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:25:09,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777182629] [2024-11-07 01:25:09,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:25:09,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:25:09,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:25:09,002 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:25:09,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-07 01:25:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:25:09,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-07 01:25:09,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:25:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:25:10,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:25:12,622 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:25:12,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777182629] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:25:12,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:25:12,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 52 [2024-11-07 01:25:12,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573624110] [2024-11-07 01:25:12,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:25:12,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-07 01:25:12,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:25:12,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-07 01:25:12,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=2423, Unknown=0, NotChecked=0, Total=2652 [2024-11-07 01:25:12,624 INFO L87 Difference]: Start difference. First operand 9519 states and 12472 transitions. Second operand has 52 states, 52 states have (on average 5.173076923076923) internal successors, (269), 52 states have internal predecessors, (269), 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) [2024-11-07 01:25:19,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:25:19,420 INFO L93 Difference]: Finished difference Result 15217 states and 19341 transitions. [2024-11-07 01:25:19,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-07 01:25:19,421 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 5.173076923076923) internal successors, (269), 52 states have internal predecessors, (269), 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 104 [2024-11-07 01:25:19,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:25:19,430 INFO L225 Difference]: With dead ends: 15217 [2024-11-07 01:25:19,430 INFO L226 Difference]: Without dead ends: 9687 [2024-11-07 01:25:19,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3017 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1975, Invalid=10907, Unknown=0, NotChecked=0, Total=12882 [2024-11-07 01:25:19,436 INFO L432 NwaCegarLoop]: 1509 mSDtfsCounter, 26015 mSDsluCounter, 27303 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26015 SdHoareTripleChecker+Valid, 28812 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:25:19,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26015 Valid, 28812 Invalid, 1799 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [127 Valid, 1672 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:25:19,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9687 states. [2024-11-07 01:25:19,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9687 to 9203. [2024-11-07 01:25:19,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9203 states, 9201 states have (on average 1.3150744484295185) internal successors, (12100), 9202 states have internal predecessors, (12100), 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) [2024-11-07 01:25:19,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9203 states to 9203 states and 12100 transitions. [2024-11-07 01:25:19,878 INFO L78 Accepts]: Start accepts. Automaton has 9203 states and 12100 transitions. Word has length 104 [2024-11-07 01:25:19,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:25:19,878 INFO L471 AbstractCegarLoop]: Abstraction has 9203 states and 12100 transitions. [2024-11-07 01:25:19,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 5.173076923076923) internal successors, (269), 52 states have internal predecessors, (269), 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) [2024-11-07 01:25:19,879 INFO L276 IsEmpty]: Start isEmpty. Operand 9203 states and 12100 transitions. [2024-11-07 01:25:19,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-07 01:25:19,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:25:19,880 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-07 01:25:19,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-07 01:25:20,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-07 01:25:20,081 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:25:20,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:25:20,081 INFO L85 PathProgramCache]: Analyzing trace with hash 15634770, now seen corresponding path program 1 times [2024-11-07 01:25:20,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:25:20,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528093000] [2024-11-07 01:25:20,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:25:20,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:25:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:25:20,569 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:25:20,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:25:20,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528093000] [2024-11-07 01:25:20,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528093000] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:25:20,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331042358] [2024-11-07 01:25:20,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:25:20,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:25:20,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:25:20,572 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:25:20,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-07 01:25:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:25:20,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-07 01:25:20,682 INFO L278 TraceCheckSpWp]: Computing forward predicates...