./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.07.cil-1.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/pc_sfifo_1.cil-2+token_ring.07.cil-1.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', '686ecb1010b71c794fc4e873862aa984c2fdfbe32a68bd8271c0851d6420f945'] 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/pc_sfifo_1.cil-2+token_ring.07.cil-1.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 686ecb1010b71c794fc4e873862aa984c2fdfbe32a68bd8271c0851d6420f945 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:42:33,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:42:33,501 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:42:33,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:42:33,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:42:33,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:42:33,526 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:42:33,526 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:42:33,526 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:42:33,530 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:42:33,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:42:33,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:42:33,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:42:33,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:42:33,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:42:33,531 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:42:33,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:42:33,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:42:33,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:42:33,532 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:42:33,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:42:33,532 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:42:33,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:42:33,532 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:42:33,532 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:42:33,532 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:42:33,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:42:33,532 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 -> 686ecb1010b71c794fc4e873862aa984c2fdfbe32a68bd8271c0851d6420f945 [2024-11-07 01:42:33,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:42:33,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:42:33,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:42:33,792 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:42:33,793 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:42:33,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.07.cil-1.c [2024-11-07 01:42:34,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:42:35,224 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:42:35,225 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.07.cil-1.c [2024-11-07 01:42:35,236 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1a1683a05/42a9c8412def4d9ca5b3e71fb7b63cff/FLAG784346384 [2024-11-07 01:42:35,558 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1a1683a05/42a9c8412def4d9ca5b3e71fb7b63cff [2024-11-07 01:42:35,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:42:35,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:42:35,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:42:35,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:42:35,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:42:35,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6979d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35, skipping insertion in model container [2024-11-07 01:42:35,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:42:35,687 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/pc_sfifo_1.cil-2+token_ring.07.cil-1.c[913,926] [2024-11-07 01:42:35,728 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/pc_sfifo_1.cil-2+token_ring.07.cil-1.c[5977,5990] [2024-11-07 01:42:35,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:42:35,782 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:42:35,789 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/pc_sfifo_1.cil-2+token_ring.07.cil-1.c[913,926] [2024-11-07 01:42:35,799 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/pc_sfifo_1.cil-2+token_ring.07.cil-1.c[5977,5990] [2024-11-07 01:42:35,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:42:35,844 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:42:35,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35 WrapperNode [2024-11-07 01:42:35,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:42:35,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:42:35,845 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:42:35,845 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:42:35,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,893 INFO L138 Inliner]: procedures = 62, calls = 69, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 783 [2024-11-07 01:42:35,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:42:35,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:42:35,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:42:35,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:42:35,904 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,908 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,933 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 01:42:35,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,944 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:42:35,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:42:35,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:42:35,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:42:35,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (1/1) ... [2024-11-07 01:42:35,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:42:36,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:42:36,018 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 01:42:36,020 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 01:42:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:42:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:42:36,042 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:42:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-11-07 01:42:36,042 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-11-07 01:42:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-07 01:42:36,042 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-07 01:42:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-07 01:42:36,043 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-07 01:42:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-07 01:42:36,043 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-07 01:42:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-07 01:42:36,043 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-07 01:42:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-07 01:42:36,043 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-07 01:42:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:42:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-07 01:42:36,044 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-07 01:42:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:42:36,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:42:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-07 01:42:36,044 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-07 01:42:36,126 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:42:36,127 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:42:36,760 INFO L? ?]: Removed 97 outVars from TransFormulas that were not future-live. [2024-11-07 01:42:36,760 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:42:36,771 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:42:36,771 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-07 01:42:36,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:42:36 BoogieIcfgContainer [2024-11-07 01:42:36,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:42:36,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:42:36,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:42:36,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:42:36,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:42:35" (1/3) ... [2024-11-07 01:42:36,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab3ba3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:42:36, skipping insertion in model container [2024-11-07 01:42:36,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:35" (2/3) ... [2024-11-07 01:42:36,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab3ba3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:42:36, skipping insertion in model container [2024-11-07 01:42:36,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:42:36" (3/3) ... [2024-11-07 01:42:36,781 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.07.cil-1.c [2024-11-07 01:42:36,798 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:42:36,799 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:42:36,885 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:42:36,898 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;@5dcd42cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:42:36,898 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:42:36,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 337 states, 298 states have (on average 1.6073825503355705) internal successors, (479), 303 states have internal predecessors, (479), 27 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 01:42:36,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-07 01:42:36,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:36,910 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] [2024-11-07 01:42:36,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:36,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:36,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1498884370, now seen corresponding path program 1 times [2024-11-07 01:42:36,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:36,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898769071] [2024-11-07 01:42:36,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:36,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:37,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:42:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:37,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-07 01:42:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:37,192 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 01:42:37,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:37,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898769071] [2024-11-07 01:42:37,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898769071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:37,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:37,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 01:42:37,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715084178] [2024-11-07 01:42:37,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:37,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:42:37,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:37,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:42:37,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 01:42:37,217 INFO L87 Difference]: Start difference. First operand has 337 states, 298 states have (on average 1.6073825503355705) internal successors, (479), 303 states have internal predecessors, (479), 27 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 01:42:37,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:37,682 INFO L93 Difference]: Finished difference Result 724 states and 1144 transitions. [2024-11-07 01:42:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:42:37,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-07 01:42:37,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:37,698 INFO L225 Difference]: With dead ends: 724 [2024-11-07 01:42:37,698 INFO L226 Difference]: Without dead ends: 397 [2024-11-07 01:42:37,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:42:37,704 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 651 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:37,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 664 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 01:42:37,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-07 01:42:37,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 391. [2024-11-07 01:42:37,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 347 states have (on average 1.4870317002881845) internal successors, (516), 351 states have internal predecessors, (516), 31 states have call successors, (31), 11 states have call predecessors, (31), 11 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2024-11-07 01:42:37,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 582 transitions. [2024-11-07 01:42:37,775 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 582 transitions. Word has length 44 [2024-11-07 01:42:37,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:37,776 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 582 transitions. [2024-11-07 01:42:37,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 01:42:37,776 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 582 transitions. [2024-11-07 01:42:37,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-07 01:42:37,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:37,778 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] [2024-11-07 01:42:37,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:42:37,779 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:37,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:37,779 INFO L85 PathProgramCache]: Analyzing trace with hash 938742520, now seen corresponding path program 1 times [2024-11-07 01:42:37,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:37,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253730059] [2024-11-07 01:42:37,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:37,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:37,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:42:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:37,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 01:42:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:37,921 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 01:42:37,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:37,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253730059] [2024-11-07 01:42:37,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253730059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:37,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:37,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 01:42:37,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147290993] [2024-11-07 01:42:37,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:37,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:42:37,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:37,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:42:37,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 01:42:37,928 INFO L87 Difference]: Start difference. First operand 391 states and 582 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 01:42:38,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:38,416 INFO L93 Difference]: Finished difference Result 639 states and 922 transitions. [2024-11-07 01:42:38,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:42:38,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-07 01:42:38,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:38,420 INFO L225 Difference]: With dead ends: 639 [2024-11-07 01:42:38,420 INFO L226 Difference]: Without dead ends: 515 [2024-11-07 01:42:38,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:42:38,422 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 269 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:38,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 898 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 01:42:38,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-07 01:42:38,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 458. [2024-11-07 01:42:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 408 states have (on average 1.4705882352941178) internal successors, (600), 412 states have internal predecessors, (600), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (38), 32 states have call predecessors, (38), 32 states have call successors, (38) [2024-11-07 01:42:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 672 transitions. [2024-11-07 01:42:38,454 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 672 transitions. Word has length 45 [2024-11-07 01:42:38,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:38,455 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 672 transitions. [2024-11-07 01:42:38,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 01:42:38,455 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 672 transitions. [2024-11-07 01:42:38,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-07 01:42:38,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:38,456 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] [2024-11-07 01:42:38,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:42:38,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:38,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:38,457 INFO L85 PathProgramCache]: Analyzing trace with hash -345614941, now seen corresponding path program 1 times [2024-11-07 01:42:38,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:38,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74651354] [2024-11-07 01:42:38,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:38,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:38,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:42:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:38,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 01:42:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:38,518 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 01:42:38,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:38,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74651354] [2024-11-07 01:42:38,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74651354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:38,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:38,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 01:42:38,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054809227] [2024-11-07 01:42:38,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:38,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:42:38,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:38,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:42:38,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 01:42:38,519 INFO L87 Difference]: Start difference. First operand 458 states and 672 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 01:42:38,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:38,821 INFO L93 Difference]: Finished difference Result 866 states and 1231 transitions. [2024-11-07 01:42:38,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:42:38,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-07 01:42:38,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:38,825 INFO L225 Difference]: With dead ends: 866 [2024-11-07 01:42:38,825 INFO L226 Difference]: Without dead ends: 675 [2024-11-07 01:42:38,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:42:38,827 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 661 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:38,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 659 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 01:42:38,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-07 01:42:38,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 623. [2024-11-07 01:42:38,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 554 states have (on average 1.4259927797833936) internal successors, (790), 561 states have internal predecessors, (790), 45 states have call successors, (45), 21 states have call predecessors, (45), 22 states have return successors, (55), 41 states have call predecessors, (55), 43 states have call successors, (55) [2024-11-07 01:42:38,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 890 transitions. [2024-11-07 01:42:38,879 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 890 transitions. Word has length 45 [2024-11-07 01:42:38,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:38,879 INFO L471 AbstractCegarLoop]: Abstraction has 623 states and 890 transitions. [2024-11-07 01:42:38,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 01:42:38,879 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 890 transitions. [2024-11-07 01:42:38,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-07 01:42:38,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:38,881 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:38,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:42:38,881 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:38,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:38,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1523851202, now seen corresponding path program 1 times [2024-11-07 01:42:38,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:38,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965590711] [2024-11-07 01:42:38,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:38,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:38,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:42:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:38,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:42:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:38,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 01:42:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:38,996 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 01:42:38,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:38,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965590711] [2024-11-07 01:42:38,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965590711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:38,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:38,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 01:42:38,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315647629] [2024-11-07 01:42:38,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:38,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:42:38,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:38,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:42:38,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 01:42:38,998 INFO L87 Difference]: Start difference. First operand 623 states and 890 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 01:42:39,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:39,351 INFO L93 Difference]: Finished difference Result 1207 states and 1675 transitions. [2024-11-07 01:42:39,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:42:39,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 62 [2024-11-07 01:42:39,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:39,356 INFO L225 Difference]: With dead ends: 1207 [2024-11-07 01:42:39,356 INFO L226 Difference]: Without dead ends: 851 [2024-11-07 01:42:39,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:42:39,360 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 253 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:39,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 948 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 01:42:39,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2024-11-07 01:42:39,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 813. [2024-11-07 01:42:39,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 720 states have (on average 1.375) internal successors, (990), 729 states have internal predecessors, (990), 59 states have call successors, (59), 29 states have call predecessors, (59), 32 states have return successors, (79), 55 states have call predecessors, (79), 57 states have call successors, (79) [2024-11-07 01:42:39,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1128 transitions. [2024-11-07 01:42:39,405 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1128 transitions. Word has length 62 [2024-11-07 01:42:39,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:39,406 INFO L471 AbstractCegarLoop]: Abstraction has 813 states and 1128 transitions. [2024-11-07 01:42:39,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 01:42:39,407 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1128 transitions. [2024-11-07 01:42:39,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-07 01:42:39,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:39,409 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:39,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:42:39,409 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:39,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:39,409 INFO L85 PathProgramCache]: Analyzing trace with hash 512707037, now seen corresponding path program 1 times [2024-11-07 01:42:39,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:39,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713715300] [2024-11-07 01:42:39,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:39,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:39,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:42:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:39,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:42:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:39,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:42:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:39,475 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 01:42:39,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:39,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713715300] [2024-11-07 01:42:39,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713715300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:39,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:39,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 01:42:39,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204716929] [2024-11-07 01:42:39,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:39,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:42:39,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:39,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:42:39,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 01:42:39,478 INFO L87 Difference]: Start difference. First operand 813 states and 1128 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 01:42:39,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:39,790 INFO L93 Difference]: Finished difference Result 1466 states and 1981 transitions. [2024-11-07 01:42:39,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:42:39,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 67 [2024-11-07 01:42:39,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:39,797 INFO L225 Difference]: With dead ends: 1466 [2024-11-07 01:42:39,797 INFO L226 Difference]: Without dead ends: 1012 [2024-11-07 01:42:39,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:42:39,799 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 648 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:39,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 658 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 01:42:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-11-07 01:42:39,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 957. [2024-11-07 01:42:39,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 848 states have (on average 1.3455188679245282) internal successors, (1141), 859 states have internal predecessors, (1141), 67 states have call successors, (67), 35 states have call predecessors, (67), 40 states have return successors, (93), 63 states have call predecessors, (93), 65 states have call successors, (93) [2024-11-07 01:42:39,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1301 transitions. [2024-11-07 01:42:39,844 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1301 transitions. Word has length 67 [2024-11-07 01:42:39,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:39,844 INFO L471 AbstractCegarLoop]: Abstraction has 957 states and 1301 transitions. [2024-11-07 01:42:39,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 01:42:39,844 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1301 transitions. [2024-11-07 01:42:39,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-07 01:42:39,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:39,845 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:39,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:42:39,846 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:39,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:39,846 INFO L85 PathProgramCache]: Analyzing trace with hash 530917073, now seen corresponding path program 1 times [2024-11-07 01:42:39,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:39,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633716839] [2024-11-07 01:42:39,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:39,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:39,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:42:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:39,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:42:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:40,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 01:42:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:40,019 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 01:42:40,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:40,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633716839] [2024-11-07 01:42:40,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633716839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:42:40,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503969575] [2024-11-07 01:42:40,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:40,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:42:40,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:42:40,024 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 01:42:40,029 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 01:42:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:40,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 01:42:40,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:42:40,192 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:42:40,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:42:40,255 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-07 01:42:40,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503969575] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 01:42:40,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 01:42:40,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 4] total 8 [2024-11-07 01:42:40,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282598013] [2024-11-07 01:42:40,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:40,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:42:40,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:40,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:42:40,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:42:40,257 INFO L87 Difference]: Start difference. First operand 957 states and 1301 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 01:42:40,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:40,379 INFO L93 Difference]: Finished difference Result 1013 states and 1369 transitions. [2024-11-07 01:42:40,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 01:42:40,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 68 [2024-11-07 01:42:40,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:40,384 INFO L225 Difference]: With dead ends: 1013 [2024-11-07 01:42:40,384 INFO L226 Difference]: Without dead ends: 1010 [2024-11-07 01:42:40,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:42:40,385 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 885 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:40,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 582 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:42:40,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2024-11-07 01:42:40,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 956. [2024-11-07 01:42:40,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 848 states have (on average 1.3431603773584906) internal successors, (1139), 858 states have internal predecessors, (1139), 66 states have call successors, (66), 35 states have call predecessors, (66), 40 states have return successors, (93), 63 states have call predecessors, (93), 65 states have call successors, (93) [2024-11-07 01:42:40,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1298 transitions. [2024-11-07 01:42:40,422 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1298 transitions. Word has length 68 [2024-11-07 01:42:40,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:40,422 INFO L471 AbstractCegarLoop]: Abstraction has 956 states and 1298 transitions. [2024-11-07 01:42:40,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 01:42:40,423 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1298 transitions. [2024-11-07 01:42:40,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-07 01:42:40,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:40,424 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:40,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 01:42:40,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:42:40,629 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:40,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:40,630 INFO L85 PathProgramCache]: Analyzing trace with hash -722473888, now seen corresponding path program 1 times [2024-11-07 01:42:40,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:40,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640014363] [2024-11-07 01:42:40,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:40,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:40,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:42:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:40,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:42:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:40,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 01:42:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:40,756 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 01:42:40,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:40,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640014363] [2024-11-07 01:42:40,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640014363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:42:40,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062792746] [2024-11-07 01:42:40,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:40,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:42:40,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:42:40,763 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 01:42:40,764 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 01:42:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:40,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 01:42:40,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:42:41,150 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:42:41,151 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:42:41,236 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-07 01:42:41,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062792746] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:42:41,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:42:41,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 11 [2024-11-07 01:42:41,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676828581] [2024-11-07 01:42:41,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:42:41,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 01:42:41,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:41,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 01:42:41,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:42:41,239 INFO L87 Difference]: Start difference. First operand 956 states and 1298 transitions. Second operand has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-07 01:42:42,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:42,322 INFO L93 Difference]: Finished difference Result 2463 states and 3286 transitions. [2024-11-07 01:42:42,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 01:42:42,323 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 69 [2024-11-07 01:42:42,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:42,330 INFO L225 Difference]: With dead ends: 2463 [2024-11-07 01:42:42,330 INFO L226 Difference]: Without dead ends: 1919 [2024-11-07 01:42:42,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2024-11-07 01:42:42,332 INFO L432 NwaCegarLoop]: 403 mSDtfsCounter, 1241 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:42,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 2906 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 01:42:42,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2024-11-07 01:42:42,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1319. [2024-11-07 01:42:42,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1172 states have (on average 1.3131399317406143) internal successors, (1539), 1190 states have internal predecessors, (1539), 86 states have call successors, (86), 49 states have call predecessors, (86), 59 states have return successors, (127), 80 states have call predecessors, (127), 85 states have call successors, (127) [2024-11-07 01:42:42,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1752 transitions. [2024-11-07 01:42:42,390 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1752 transitions. Word has length 69 [2024-11-07 01:42:42,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:42,390 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 1752 transitions. [2024-11-07 01:42:42,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-07 01:42:42,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1752 transitions. [2024-11-07 01:42:42,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 01:42:42,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:42,394 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 01:42:42,408 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 01:42:42,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:42:42,594 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:42,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:42,595 INFO L85 PathProgramCache]: Analyzing trace with hash -103841456, now seen corresponding path program 1 times [2024-11-07 01:42:42,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:42,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796867624] [2024-11-07 01:42:42,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:42,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:42,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:42:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:42,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:42:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:42,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 01:42:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:42,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 01:42:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-07 01:42:42,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:42,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796867624] [2024-11-07 01:42:42,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796867624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:42:42,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459043288] [2024-11-07 01:42:42,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:42,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:42:42,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:42:42,704 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 01:42:42,706 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 01:42:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:42,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 01:42:42,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:42:42,808 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-07 01:42:42,808 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:42:42,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459043288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:42,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:42:42,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-07 01:42:42,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69114703] [2024-11-07 01:42:42,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:42,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:42:42,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:42,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:42:42,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:42:42,809 INFO L87 Difference]: Start difference. First operand 1319 states and 1752 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-07 01:42:42,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:42,854 INFO L93 Difference]: Finished difference Result 2016 states and 2656 transitions. [2024-11-07 01:42:42,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:42:42,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 88 [2024-11-07 01:42:42,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:42,859 INFO L225 Difference]: With dead ends: 2016 [2024-11-07 01:42:42,859 INFO L226 Difference]: Without dead ends: 1197 [2024-11-07 01:42:42,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:42:42,860 INFO L432 NwaCegarLoop]: 521 mSDtfsCounter, 451 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:42,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 596 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:42:42,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2024-11-07 01:42:42,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1182. [2024-11-07 01:42:42,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 1051 states have (on average 1.313986679352997) internal successors, (1381), 1068 states have internal predecessors, (1381), 78 states have call successors, (78), 43 states have call predecessors, (78), 51 states have return successors, (113), 71 states have call predecessors, (113), 77 states have call successors, (113) [2024-11-07 01:42:42,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1572 transitions. [2024-11-07 01:42:42,903 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1572 transitions. Word has length 88 [2024-11-07 01:42:42,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:42,903 INFO L471 AbstractCegarLoop]: Abstraction has 1182 states and 1572 transitions. [2024-11-07 01:42:42,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-07 01:42:42,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1572 transitions. [2024-11-07 01:42:42,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-07 01:42:42,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:42,906 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:42,921 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 01:42:43,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:42:43,111 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:43,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:43,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1898445936, now seen corresponding path program 1 times [2024-11-07 01:42:43,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:43,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223477359] [2024-11-07 01:42:43,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:43,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:42:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:42:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:42:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-07 01:42:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 01:42:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,232 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-07 01:42:43,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:43,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223477359] [2024-11-07 01:42:43,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223477359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:42:43,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468262275] [2024-11-07 01:42:43,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:43,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:42:43,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:42:43,235 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 01:42:43,258 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 01:42:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 01:42:43,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:42:43,364 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-07 01:42:43,368 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:42:43,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468262275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:43,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:42:43,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-07 01:42:43,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761449818] [2024-11-07 01:42:43,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:43,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:42:43,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:43,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:42:43,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:42:43,369 INFO L87 Difference]: Start difference. First operand 1182 states and 1572 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-07 01:42:43,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:43,406 INFO L93 Difference]: Finished difference Result 1561 states and 2040 transitions. [2024-11-07 01:42:43,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:42:43,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 103 [2024-11-07 01:42:43,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:43,408 INFO L225 Difference]: With dead ends: 1561 [2024-11-07 01:42:43,408 INFO L226 Difference]: Without dead ends: 261 [2024-11-07 01:42:43,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:42:43,410 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 62 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:43,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1002 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:42:43,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-07 01:42:43,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2024-11-07 01:42:43,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 233 states have (on average 1.5321888412017168) internal successors, (357), 234 states have internal predecessors, (357), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-07 01:42:43,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 399 transitions. [2024-11-07 01:42:43,419 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 399 transitions. Word has length 103 [2024-11-07 01:42:43,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:43,419 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 399 transitions. [2024-11-07 01:42:43,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-07 01:42:43,419 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 399 transitions. [2024-11-07 01:42:43,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:42:43,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:43,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:43,433 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 01:42:43,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-07 01:42:43,621 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:43,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:43,621 INFO L85 PathProgramCache]: Analyzing trace with hash 839200010, now seen corresponding path program 1 times [2024-11-07 01:42:43,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:43,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921328751] [2024-11-07 01:42:43,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:43,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:42:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:42:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:42:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:42:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:42:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:43,716 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 01:42:43,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:43,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921328751] [2024-11-07 01:42:43,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921328751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:43,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:43,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:42:43,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690966603] [2024-11-07 01:42:43,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:43,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:42:43,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:43,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:42:43,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:42:43,717 INFO L87 Difference]: Start difference. First operand 261 states and 399 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:44,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:44,611 INFO L93 Difference]: Finished difference Result 597 states and 929 transitions. [2024-11-07 01:42:44,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:42:44,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:42:44,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:44,614 INFO L225 Difference]: With dead ends: 597 [2024-11-07 01:42:44,614 INFO L226 Difference]: Without dead ends: 348 [2024-11-07 01:42:44,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:42:44,614 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 662 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:44,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 520 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:42:44,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-07 01:42:44,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 261. [2024-11-07 01:42:44,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 233 states have (on average 1.5278969957081545) internal successors, (356), 234 states have internal predecessors, (356), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-07 01:42:44,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 398 transitions. [2024-11-07 01:42:44,626 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 398 transitions. Word has length 123 [2024-11-07 01:42:44,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:44,626 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 398 transitions. [2024-11-07 01:42:44,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:44,626 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 398 transitions. [2024-11-07 01:42:44,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:42:44,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:44,627 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:44,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:42:44,627 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:44,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:44,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1324416564, now seen corresponding path program 1 times [2024-11-07 01:42:44,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:44,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432238937] [2024-11-07 01:42:44,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:44,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:44,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:42:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:44,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:42:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:44,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:42:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:44,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:42:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:44,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:42:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:44,755 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 01:42:44,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:44,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432238937] [2024-11-07 01:42:44,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432238937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:44,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:44,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:42:44,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616556695] [2024-11-07 01:42:44,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:44,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:42:44,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:44,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:42:44,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:42:44,757 INFO L87 Difference]: Start difference. First operand 261 states and 398 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:46,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:46,144 INFO L93 Difference]: Finished difference Result 933 states and 1461 transitions. [2024-11-07 01:42:46,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:42:46,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:42:46,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:46,148 INFO L225 Difference]: With dead ends: 933 [2024-11-07 01:42:46,148 INFO L226 Difference]: Without dead ends: 688 [2024-11-07 01:42:46,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:42:46,149 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 994 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:46,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 886 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:42:46,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-07 01:42:46,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 515. [2024-11-07 01:42:46,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 464 states have (on average 1.540948275862069) internal successors, (715), 466 states have internal predecessors, (715), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2024-11-07 01:42:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 792 transitions. [2024-11-07 01:42:46,176 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 792 transitions. Word has length 123 [2024-11-07 01:42:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:46,176 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 792 transitions. [2024-11-07 01:42:46,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 792 transitions. [2024-11-07 01:42:46,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:42:46,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:46,178 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:46,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:42:46,179 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:46,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:46,179 INFO L85 PathProgramCache]: Analyzing trace with hash -2049980592, now seen corresponding path program 1 times [2024-11-07 01:42:46,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:46,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905283466] [2024-11-07 01:42:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:46,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:46,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:42:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:46,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:42:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:46,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:42:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:46,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:42:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:46,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:42:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:46,355 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 01:42:46,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:46,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905283466] [2024-11-07 01:42:46,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905283466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:46,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:46,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:42:46,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846815670] [2024-11-07 01:42:46,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:46,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:42:46,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:46,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:42:46,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:42:46,358 INFO L87 Difference]: Start difference. First operand 515 states and 792 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:48,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:48,232 INFO L93 Difference]: Finished difference Result 1537 states and 2406 transitions. [2024-11-07 01:42:48,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:42:48,232 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:42:48,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:48,240 INFO L225 Difference]: With dead ends: 1537 [2024-11-07 01:42:48,240 INFO L226 Difference]: Without dead ends: 1038 [2024-11-07 01:42:48,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:42:48,241 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 1017 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 2268 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 2319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:48,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 1696 Invalid, 2319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2268 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:42:48,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2024-11-07 01:42:48,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 752. [2024-11-07 01:42:48,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 678 states have (on average 1.5339233038348083) internal successors, (1040), 681 states have internal predecessors, (1040), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2024-11-07 01:42:48,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1151 transitions. [2024-11-07 01:42:48,310 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1151 transitions. Word has length 123 [2024-11-07 01:42:48,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:48,310 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1151 transitions. [2024-11-07 01:42:48,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1151 transitions. [2024-11-07 01:42:48,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:42:48,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:48,311 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:48,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:42:48,312 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:48,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:48,312 INFO L85 PathProgramCache]: Analyzing trace with hash -660686578, now seen corresponding path program 1 times [2024-11-07 01:42:48,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:48,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359387261] [2024-11-07 01:42:48,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:48,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:48,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:42:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:48,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:42:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:48,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:42:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:48,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:42:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:48,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:42:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:48,506 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 01:42:48,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:48,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359387261] [2024-11-07 01:42:48,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359387261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:48,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:48,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:42:48,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37560471] [2024-11-07 01:42:48,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:48,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:42:48,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:48,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:42:48,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:42:48,508 INFO L87 Difference]: Start difference. First operand 752 states and 1151 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:50,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:50,303 INFO L93 Difference]: Finished difference Result 2426 states and 3789 transitions. [2024-11-07 01:42:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:42:50,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:42:50,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:50,313 INFO L225 Difference]: With dead ends: 2426 [2024-11-07 01:42:50,313 INFO L226 Difference]: Without dead ends: 1690 [2024-11-07 01:42:50,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:42:50,316 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1011 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:50,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 1694 Invalid, 2300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-07 01:42:50,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2024-11-07 01:42:50,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1230. [2024-11-07 01:42:50,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1110 states have (on average 1.5288288288288288) internal successors, (1697), 1115 states have internal predecessors, (1697), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-11-07 01:42:50,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1880 transitions. [2024-11-07 01:42:50,379 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1880 transitions. Word has length 123 [2024-11-07 01:42:50,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:50,380 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 1880 transitions. [2024-11-07 01:42:50,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:50,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1880 transitions. [2024-11-07 01:42:50,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:42:50,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:50,382 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:50,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 01:42:50,383 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:50,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:50,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1767572044, now seen corresponding path program 1 times [2024-11-07 01:42:50,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:50,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845746264] [2024-11-07 01:42:50,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:50,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:50,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:42:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:50,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:42:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:50,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:42:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:50,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:42:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:50,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:42:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:50,556 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 01:42:50,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:50,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845746264] [2024-11-07 01:42:50,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845746264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:50,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:50,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:42:50,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905014974] [2024-11-07 01:42:50,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:50,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:42:50,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:50,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:42:50,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:42:50,558 INFO L87 Difference]: Start difference. First operand 1230 states and 1880 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:52,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:52,568 INFO L93 Difference]: Finished difference Result 4146 states and 6450 transitions. [2024-11-07 01:42:52,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:42:52,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:42:52,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:52,580 INFO L225 Difference]: With dead ends: 4146 [2024-11-07 01:42:52,580 INFO L226 Difference]: Without dead ends: 2932 [2024-11-07 01:42:52,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:42:52,585 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1010 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:52,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 1694 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:42:52,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2024-11-07 01:42:52,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 2187. [2024-11-07 01:42:52,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 1975 states have (on average 1.5245569620253165) internal successors, (3011), 1984 states have internal predecessors, (3011), 149 states have call successors, (149), 54 states have call predecessors, (149), 62 states have return successors, (184), 156 states have call predecessors, (184), 149 states have call successors, (184) [2024-11-07 01:42:52,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3344 transitions. [2024-11-07 01:42:52,723 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3344 transitions. Word has length 123 [2024-11-07 01:42:52,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:52,724 INFO L471 AbstractCegarLoop]: Abstraction has 2187 states and 3344 transitions. [2024-11-07 01:42:52,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:52,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3344 transitions. [2024-11-07 01:42:52,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:42:52,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:52,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:52,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 01:42:52,726 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:52,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:52,726 INFO L85 PathProgramCache]: Analyzing trace with hash 460429646, now seen corresponding path program 1 times [2024-11-07 01:42:52,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:52,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556133309] [2024-11-07 01:42:52,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:52,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:52,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:42:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:52,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:42:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:52,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:42:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:52,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:42:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:52,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:42:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:52,887 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 01:42:52,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:52,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556133309] [2024-11-07 01:42:52,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556133309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:52,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:52,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:42:52,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896393032] [2024-11-07 01:42:52,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:52,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:42:52,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:52,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:42:52,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:42:52,889 INFO L87 Difference]: Start difference. First operand 2187 states and 3344 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:54,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:54,911 INFO L93 Difference]: Finished difference Result 7585 states and 11788 transitions. [2024-11-07 01:42:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:42:54,912 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:42:54,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:54,933 INFO L225 Difference]: With dead ends: 7585 [2024-11-07 01:42:54,934 INFO L226 Difference]: Without dead ends: 5414 [2024-11-07 01:42:54,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:42:54,942 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1009 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 2221 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:54,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 1694 Invalid, 2274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2221 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-07 01:42:54,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5414 states. [2024-11-07 01:42:55,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5414 to 4108. [2024-11-07 01:42:55,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4108 states, 3712 states have (on average 1.5218211206896552) internal successors, (5649), 3729 states have internal predecessors, (5649), 277 states have call successors, (277), 102 states have call predecessors, (277), 118 states have return successors, (374), 292 states have call predecessors, (374), 277 states have call successors, (374) [2024-11-07 01:42:55,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4108 states to 4108 states and 6300 transitions. [2024-11-07 01:42:55,262 INFO L78 Accepts]: Start accepts. Automaton has 4108 states and 6300 transitions. Word has length 123 [2024-11-07 01:42:55,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:55,262 INFO L471 AbstractCegarLoop]: Abstraction has 4108 states and 6300 transitions. [2024-11-07 01:42:55,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:55,262 INFO L276 IsEmpty]: Start isEmpty. Operand 4108 states and 6300 transitions. [2024-11-07 01:42:55,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:42:55,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:55,265 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:55,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 01:42:55,265 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:55,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:55,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1937040884, now seen corresponding path program 1 times [2024-11-07 01:42:55,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:55,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614458401] [2024-11-07 01:42:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:55,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:55,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:42:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:55,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:42:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:55,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:42:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:55,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:42:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:55,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:42:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:55,409 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 01:42:55,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:55,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614458401] [2024-11-07 01:42:55,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614458401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:55,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:55,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:42:55,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485062065] [2024-11-07 01:42:55,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:55,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:42:55,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:55,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:42:55,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:42:55,411 INFO L87 Difference]: Start difference. First operand 4108 states and 6300 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:57,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:42:57,749 INFO L93 Difference]: Finished difference Result 14464 states and 22526 transitions. [2024-11-07 01:42:57,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:42:57,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:42:57,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:42:57,805 INFO L225 Difference]: With dead ends: 14464 [2024-11-07 01:42:57,805 INFO L226 Difference]: Without dead ends: 10372 [2024-11-07 01:42:57,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:42:57,821 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1008 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 2208 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:42:57,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 1694 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2208 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:42:57,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10372 states. [2024-11-07 01:42:58,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10372 to 7965. [2024-11-07 01:42:58,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7965 states, 7201 states have (on average 1.5202055270101376) internal successors, (10947), 7234 states have internal predecessors, (10947), 533 states have call successors, (533), 198 states have call predecessors, (533), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2024-11-07 01:42:58,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7965 states to 7965 states and 12288 transitions. [2024-11-07 01:42:58,499 INFO L78 Accepts]: Start accepts. Automaton has 7965 states and 12288 transitions. Word has length 123 [2024-11-07 01:42:58,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:42:58,499 INFO L471 AbstractCegarLoop]: Abstraction has 7965 states and 12288 transitions. [2024-11-07 01:42:58,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:42:58,499 INFO L276 IsEmpty]: Start isEmpty. Operand 7965 states and 12288 transitions. [2024-11-07 01:42:58,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:42:58,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:42:58,504 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:42:58,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 01:42:58,504 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:42:58,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:42:58,505 INFO L85 PathProgramCache]: Analyzing trace with hash -905999986, now seen corresponding path program 1 times [2024-11-07 01:42:58,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:42:58,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383724927] [2024-11-07 01:42:58,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:42:58,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:42:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:58,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:42:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:58,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:42:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:58,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:42:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:58,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:42:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:58,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:42:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:42:58,690 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 01:42:58,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:42:58,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383724927] [2024-11-07 01:42:58,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383724927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:42:58,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:42:58,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:42:58,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508093107] [2024-11-07 01:42:58,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:42:58,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:42:58,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:42:58,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:42:58,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:42:58,693 INFO L87 Difference]: Start difference. First operand 7965 states and 12288 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:43:01,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:01,267 INFO L93 Difference]: Finished difference Result 28223 states and 44196 transitions. [2024-11-07 01:43:01,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:43:01,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:43:01,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:01,356 INFO L225 Difference]: With dead ends: 28223 [2024-11-07 01:43:01,356 INFO L226 Difference]: Without dead ends: 20274 [2024-11-07 01:43:01,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:43:01,386 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 1069 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:01,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 1100 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:43:01,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20274 states. [2024-11-07 01:43:02,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20274 to 15710. [2024-11-07 01:43:02,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15710 states, 14210 states have (on average 1.5192821956368754) internal successors, (21589), 14275 states have internal predecessors, (21589), 1045 states have call successors, (1045), 390 states have call predecessors, (1045), 454 states have return successors, (1838), 1108 states have call predecessors, (1838), 1045 states have call successors, (1838) [2024-11-07 01:43:02,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15710 states to 15710 states and 24472 transitions. [2024-11-07 01:43:02,403 INFO L78 Accepts]: Start accepts. Automaton has 15710 states and 24472 transitions. Word has length 123 [2024-11-07 01:43:02,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:02,404 INFO L471 AbstractCegarLoop]: Abstraction has 15710 states and 24472 transitions. [2024-11-07 01:43:02,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:43:02,405 INFO L276 IsEmpty]: Start isEmpty. Operand 15710 states and 24472 transitions. [2024-11-07 01:43:02,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:43:02,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:02,416 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:02,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 01:43:02,417 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:02,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:02,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1482564044, now seen corresponding path program 1 times [2024-11-07 01:43:02,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:02,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302206084] [2024-11-07 01:43:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:02,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:02,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:02,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:43:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:02,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:43:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:02,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:43:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:02,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:43:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:02,584 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 01:43:02,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:02,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302206084] [2024-11-07 01:43:02,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302206084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:02,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:02,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:02,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921897016] [2024-11-07 01:43:02,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:02,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:02,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:02,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:02,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:02,586 INFO L87 Difference]: Start difference. First operand 15710 states and 24472 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:43:04,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:04,534 INFO L93 Difference]: Finished difference Result 36194 states and 57473 transitions. [2024-11-07 01:43:04,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:43:04,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:43:04,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:04,612 INFO L225 Difference]: With dead ends: 36194 [2024-11-07 01:43:04,612 INFO L226 Difference]: Without dead ends: 20500 [2024-11-07 01:43:04,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:43:04,652 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 739 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:04,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 852 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 01:43:04,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20500 states. [2024-11-07 01:43:05,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20500 to 15710. [2024-11-07 01:43:05,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15710 states, 14210 states have (on average 1.5147079521463758) internal successors, (21524), 14275 states have internal predecessors, (21524), 1045 states have call successors, (1045), 390 states have call predecessors, (1045), 454 states have return successors, (1838), 1108 states have call predecessors, (1838), 1045 states have call successors, (1838) [2024-11-07 01:43:05,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15710 states to 15710 states and 24407 transitions. [2024-11-07 01:43:05,982 INFO L78 Accepts]: Start accepts. Automaton has 15710 states and 24407 transitions. Word has length 123 [2024-11-07 01:43:05,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:05,982 INFO L471 AbstractCegarLoop]: Abstraction has 15710 states and 24407 transitions. [2024-11-07 01:43:05,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:43:05,983 INFO L276 IsEmpty]: Start isEmpty. Operand 15710 states and 24407 transitions. [2024-11-07 01:43:05,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:43:05,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:05,992 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:05,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 01:43:05,992 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:05,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:05,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1211332146, now seen corresponding path program 1 times [2024-11-07 01:43:05,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:05,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016938862] [2024-11-07 01:43:05,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:05,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:06,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:06,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:43:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:06,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:43:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:06,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:43:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:06,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:43:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:06,121 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 01:43:06,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:06,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016938862] [2024-11-07 01:43:06,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016938862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:06,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:06,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:06,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045390781] [2024-11-07 01:43:06,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:06,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:06,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:06,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:06,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:06,125 INFO L87 Difference]: Start difference. First operand 15710 states and 24407 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:43:10,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:10,044 INFO L93 Difference]: Finished difference Result 61756 states and 96964 transitions. [2024-11-07 01:43:10,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:43:10,045 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:43:10,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:10,183 INFO L225 Difference]: With dead ends: 61756 [2024-11-07 01:43:10,184 INFO L226 Difference]: Without dead ends: 46062 [2024-11-07 01:43:10,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:43:10,226 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 1067 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 2576 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 2631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:10,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 1680 Invalid, 2631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2576 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-07 01:43:10,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46062 states. [2024-11-07 01:43:12,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46062 to 30816. [2024-11-07 01:43:12,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30816 states, 27908 states have (on average 1.5144044718360328) internal successors, (42264), 28037 states have internal predecessors, (42264), 2005 states have call successors, (2005), 774 states have call predecessors, (2005), 902 states have return successors, (4320), 2132 states have call predecessors, (4320), 2005 states have call successors, (4320) [2024-11-07 01:43:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30816 states to 30816 states and 48589 transitions. [2024-11-07 01:43:12,651 INFO L78 Accepts]: Start accepts. Automaton has 30816 states and 48589 transitions. Word has length 123 [2024-11-07 01:43:12,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:12,652 INFO L471 AbstractCegarLoop]: Abstraction has 30816 states and 48589 transitions. [2024-11-07 01:43:12,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:43:12,652 INFO L276 IsEmpty]: Start isEmpty. Operand 30816 states and 48589 transitions. [2024-11-07 01:43:12,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:43:12,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:12,667 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:12,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 01:43:12,667 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:12,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:12,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2026903948, now seen corresponding path program 1 times [2024-11-07 01:43:12,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:12,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906408321] [2024-11-07 01:43:12,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:12,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:12,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:12,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:43:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:12,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:43:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:12,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:43:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:12,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:43:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:12,910 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 01:43:12,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:12,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906408321] [2024-11-07 01:43:12,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906408321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:12,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:12,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:12,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128059933] [2024-11-07 01:43:12,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:12,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:12,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:12,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:12,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:12,912 INFO L87 Difference]: Start difference. First operand 30816 states and 48589 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:43:15,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:15,496 INFO L93 Difference]: Finished difference Result 70496 states and 113488 transitions. [2024-11-07 01:43:15,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:43:15,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:43:15,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:15,627 INFO L225 Difference]: With dead ends: 70496 [2024-11-07 01:43:15,628 INFO L226 Difference]: Without dead ends: 39696 [2024-11-07 01:43:15,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:43:15,692 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 742 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:15,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 852 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:43:15,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39696 states. [2024-11-07 01:43:17,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39696 to 30816. [2024-11-07 01:43:17,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30816 states, 27908 states have (on average 1.509782141321485) internal successors, (42135), 28037 states have internal predecessors, (42135), 2005 states have call successors, (2005), 774 states have call predecessors, (2005), 902 states have return successors, (4320), 2132 states have call predecessors, (4320), 2005 states have call successors, (4320) [2024-11-07 01:43:17,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30816 states to 30816 states and 48460 transitions. [2024-11-07 01:43:17,565 INFO L78 Accepts]: Start accepts. Automaton has 30816 states and 48460 transitions. Word has length 123 [2024-11-07 01:43:17,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:17,566 INFO L471 AbstractCegarLoop]: Abstraction has 30816 states and 48460 transitions. [2024-11-07 01:43:17,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:43:17,566 INFO L276 IsEmpty]: Start isEmpty. Operand 30816 states and 48460 transitions. [2024-11-07 01:43:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:43:17,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:17,598 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:17,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 01:43:17,601 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:17,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:17,602 INFO L85 PathProgramCache]: Analyzing trace with hash 407929034, now seen corresponding path program 1 times [2024-11-07 01:43:17,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:17,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493786804] [2024-11-07 01:43:17,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:17,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:43:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:43:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:43:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:43:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,768 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 01:43:17,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:17,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493786804] [2024-11-07 01:43:17,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493786804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:17,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:17,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:17,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047550785] [2024-11-07 01:43:17,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:17,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:17,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:17,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:17,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:17,770 INFO L87 Difference]: Start difference. First operand 30816 states and 48460 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:43:24,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:24,374 INFO L93 Difference]: Finished difference Result 115832 states and 184320 transitions. [2024-11-07 01:43:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:43:24,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:43:24,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:24,635 INFO L225 Difference]: With dead ends: 115832 [2024-11-07 01:43:24,635 INFO L226 Difference]: Without dead ends: 85032 [2024-11-07 01:43:24,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:43:24,729 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 1128 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 2149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:24,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 1684 Invalid, 2149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2093 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-07 01:43:24,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85032 states. [2024-11-07 01:43:29,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85032 to 61539. [2024-11-07 01:43:29,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61539 states, 55879 states have (on average 1.511211725335099) internal successors, (84445), 56136 states have internal predecessors, (84445), 3861 states have call successors, (3861), 1542 states have call predecessors, (3861), 1798 states have return successors, (10678), 4116 states have call predecessors, (10678), 3861 states have call successors, (10678) [2024-11-07 01:43:29,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61539 states to 61539 states and 98984 transitions. [2024-11-07 01:43:29,330 INFO L78 Accepts]: Start accepts. Automaton has 61539 states and 98984 transitions. Word has length 123 [2024-11-07 01:43:29,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:29,331 INFO L471 AbstractCegarLoop]: Abstraction has 61539 states and 98984 transitions. [2024-11-07 01:43:29,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:43:29,331 INFO L276 IsEmpty]: Start isEmpty. Operand 61539 states and 98984 transitions. [2024-11-07 01:43:29,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-07 01:43:29,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:29,365 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:29,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 01:43:29,366 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:29,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:29,366 INFO L85 PathProgramCache]: Analyzing trace with hash -475579956, now seen corresponding path program 1 times [2024-11-07 01:43:29,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:29,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324768398] [2024-11-07 01:43:29,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:29,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:29,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:29,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:43:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:29,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 01:43:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:29,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:43:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:29,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 01:43:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:29,520 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 01:43:29,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:29,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324768398] [2024-11-07 01:43:29,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324768398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:29,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:29,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:29,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697125232] [2024-11-07 01:43:29,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:29,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:29,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:29,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:29,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:29,521 INFO L87 Difference]: Start difference. First operand 61539 states and 98984 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:43:40,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:40,328 INFO L93 Difference]: Finished difference Result 226553 states and 369178 transitions. [2024-11-07 01:43:40,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:43:40,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2024-11-07 01:43:40,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:40,963 INFO L225 Difference]: With dead ends: 226553 [2024-11-07 01:43:40,964 INFO L226 Difference]: Without dead ends: 165030 [2024-11-07 01:43:41,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:43:41,399 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 1088 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:41,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1684 Invalid, 2136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:43:41,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165030 states.