./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.11.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/Problem05_label43+token_ring.11.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', '58ba472d0eab58f0bee7768d9e5b3bb2a3404d90b32bd7c010fe277536e64fd4'] 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/Problem05_label43+token_ring.11.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 58ba472d0eab58f0bee7768d9e5b3bb2a3404d90b32bd7c010fe277536e64fd4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:00:04,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:00:04,685 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:00:04,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:00:04,689 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:00:04,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:00:04,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:00:04,715 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:00:04,715 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:00:04,716 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:00:04,716 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:00:04,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:00:04,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:00:04,716 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:00:04,716 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:00:04,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:00:04,716 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:00:04,716 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:00:04,717 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:00:04,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:00:04,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:00:04,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:00:04,717 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:00:04,717 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:00:04,717 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:00:04,717 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:00:04,717 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:00:04,717 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:00:04,717 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:00:04,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:00:04,718 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:00:04,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:00:04,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:00:04,718 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:00:04,718 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:00:04,718 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:00:04,718 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:00:04,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:00:04,718 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:00:04,718 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:00:04,718 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:00:04,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:00:04,719 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 -> 58ba472d0eab58f0bee7768d9e5b3bb2a3404d90b32bd7c010fe277536e64fd4 [2024-11-07 01:00:04,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:00:04,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:00:04,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:00:04,942 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:00:04,942 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:00:04,943 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.11.cil-1.c [2024-11-07 01:00:06,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:00:06,465 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:00:06,466 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.11.cil-1.c [2024-11-07 01:00:06,511 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/63e2a1da6/b626e2ecb4a24d9393091683b0da3147/FLAGbd9a2db8e [2024-11-07 01:00:06,522 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/63e2a1da6/b626e2ecb4a24d9393091683b0da3147 [2024-11-07 01:00:06,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:00:06,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:00:06,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:00:06,526 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:00:06,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:00:06,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:06" (1/1) ... [2024-11-07 01:00:06,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77384649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:06, skipping insertion in model container [2024-11-07 01:00:06,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:06" (1/1) ... [2024-11-07 01:00:06,648 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:00:07,595 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/Problem05_label43+token_ring.11.cil-1.c[381679,381692] [2024-11-07 01:00:07,617 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/Problem05_label43+token_ring.11.cil-1.c[383339,383352] [2024-11-07 01:00:07,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:00:07,803 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:00:08,268 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/Problem05_label43+token_ring.11.cil-1.c[381679,381692] [2024-11-07 01:00:08,272 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/Problem05_label43+token_ring.11.cil-1.c[383339,383352] [2024-11-07 01:00:08,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:00:08,356 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:00:08,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08 WrapperNode [2024-11-07 01:00:08,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:00:08,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:00:08,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:00:08,359 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:00:08,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2024-11-07 01:00:08,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2024-11-07 01:00:08,801 INFO L138 Inliner]: procedures = 66, calls = 75, calls flagged for inlining = 43, calls inlined = 43, statements flattened = 13179 [2024-11-07 01:00:08,801 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:00:08,802 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:00:08,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:00:08,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:00:08,809 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2024-11-07 01:00:08,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2024-11-07 01:00:08,842 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2024-11-07 01:00:08,958 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 01:00:08,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2024-11-07 01:00:08,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2024-11-07 01:00:09,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2024-11-07 01:00:09,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2024-11-07 01:00:09,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2024-11-07 01:00:09,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2024-11-07 01:00:09,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:00:09,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:00:09,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:00:09,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:00:09,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (1/1) ... [2024-11-07 01:00:09,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:00:09,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:00:09,413 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 01:00:09,418 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 01:00:09,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:00:09,435 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-07 01:00:09,435 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-07 01:00:09,435 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:00:09,435 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:00:09,435 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-07 01:00:09,436 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-07 01:00:09,436 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-07 01:00:09,436 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-07 01:00:09,436 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-07 01:00:09,436 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-07 01:00:09,436 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-07 01:00:09,436 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-07 01:00:09,436 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-07 01:00:09,436 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-07 01:00:09,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:00:09,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:00:09,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:00:09,547 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:00:09,548 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:00:15,655 INFO L? ?]: Removed 1753 outVars from TransFormulas that were not future-live. [2024-11-07 01:00:15,655 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:00:15,710 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:00:15,711 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-07 01:00:15,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:15 BoogieIcfgContainer [2024-11-07 01:00:15,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:00:15,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:00:15,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:00:15,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:00:15,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:00:06" (1/3) ... [2024-11-07 01:00:15,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a02fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:15, skipping insertion in model container [2024-11-07 01:00:15,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:08" (2/3) ... [2024-11-07 01:00:15,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a02fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:15, skipping insertion in model container [2024-11-07 01:00:15,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:15" (3/3) ... [2024-11-07 01:00:15,720 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.11.cil-1.c [2024-11-07 01:00:15,730 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:00:15,730 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:00:15,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:00:15,809 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;@6ea0a958, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:00:15,809 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:00:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 2560 states, 2523 states have (on average 1.840665873959572) internal successors, (4644), 2528 states have internal predecessors, (4644), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 01:00:15,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:00:15,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:15,833 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:15,834 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:15,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:15,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1643265123, now seen corresponding path program 1 times [2024-11-07 01:00:15,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:15,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045494855] [2024-11-07 01:00:15,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:15,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:16,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:16,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:00:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:16,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:00:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:16,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:00:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:16,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:00:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:16,293 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 01:00:16,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:16,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045494855] [2024-11-07 01:00:16,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045494855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:16,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:16,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:00:16,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451747395] [2024-11-07 01:00:16,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:16,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:00:16,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:16,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:00:16,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:00:16,318 INFO L87 Difference]: Start difference. First operand has 2560 states, 2523 states have (on average 1.840665873959572) internal successors, (4644), 2528 states have internal predecessors, (4644), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:17,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:17,970 INFO L93 Difference]: Finished difference Result 5238 states and 9599 transitions. [2024-11-07 01:00:17,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:00:17,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:00:17,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:17,998 INFO L225 Difference]: With dead ends: 5238 [2024-11-07 01:00:17,999 INFO L226 Difference]: Without dead ends: 2623 [2024-11-07 01:00:18,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:00:18,010 INFO L432 NwaCegarLoop]: 4371 mSDtfsCounter, 983 mSDsluCounter, 12481 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 16852 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:18,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 16852 Invalid, 1018 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:00:18,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2024-11-07 01:00:18,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2492. [2024-11-07 01:00:18,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2457 states have (on average 1.8245828245828246) internal successors, (4483), 2460 states have internal predecessors, (4483), 27 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 01:00:18,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4535 transitions. [2024-11-07 01:00:18,135 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4535 transitions. Word has length 168 [2024-11-07 01:00:18,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:18,135 INFO L471 AbstractCegarLoop]: Abstraction has 2492 states and 4535 transitions. [2024-11-07 01:00:18,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:18,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4535 transitions. [2024-11-07 01:00:18,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:00:18,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:18,141 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:18,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:00:18,143 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:18,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:18,144 INFO L85 PathProgramCache]: Analyzing trace with hash -238073445, now seen corresponding path program 1 times [2024-11-07 01:00:18,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:18,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629692852] [2024-11-07 01:00:18,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:18,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:18,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:18,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:00:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:18,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:00:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:18,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:00:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:18,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:00:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:18,441 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 01:00:18,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:18,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629692852] [2024-11-07 01:00:18,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629692852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:18,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:18,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:00:18,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262006278] [2024-11-07 01:00:18,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:18,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:00:18,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:18,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:00:18,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:00:18,445 INFO L87 Difference]: Start difference. First operand 2492 states and 4535 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:20,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:20,719 INFO L93 Difference]: Finished difference Result 3474 states and 6110 transitions. [2024-11-07 01:00:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:00:20,720 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:00:20,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:20,735 INFO L225 Difference]: With dead ends: 3474 [2024-11-07 01:00:20,735 INFO L226 Difference]: Without dead ends: 3122 [2024-11-07 01:00:20,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:00:20,740 INFO L432 NwaCegarLoop]: 4274 mSDtfsCounter, 5431 mSDsluCounter, 12841 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5449 SdHoareTripleChecker+Valid, 17115 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:20,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5449 Valid, 17115 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 01:00:20,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2024-11-07 01:00:20,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 2859. [2024-11-07 01:00:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2859 states, 2797 states have (on average 1.794780121558813) internal successors, (5020), 2801 states have internal predecessors, (5020), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-11-07 01:00:20,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 5115 transitions. [2024-11-07 01:00:20,872 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 5115 transitions. Word has length 168 [2024-11-07 01:00:20,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:20,873 INFO L471 AbstractCegarLoop]: Abstraction has 2859 states and 5115 transitions. [2024-11-07 01:00:20,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:20,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 5115 transitions. [2024-11-07 01:00:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:00:20,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:20,877 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:20,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:00:20,877 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:20,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:20,878 INFO L85 PathProgramCache]: Analyzing trace with hash 684327063, now seen corresponding path program 1 times [2024-11-07 01:00:20,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:20,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179114661] [2024-11-07 01:00:20,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:20,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:20,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:21,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:00:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:21,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:00:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:21,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:00:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:21,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:00:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:21,136 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 01:00:21,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:21,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179114661] [2024-11-07 01:00:21,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179114661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:21,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:21,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:00:21,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862952258] [2024-11-07 01:00:21,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:21,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:00:21,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:21,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:00:21,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:00:21,139 INFO L87 Difference]: Start difference. First operand 2859 states and 5115 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:23,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:23,934 INFO L93 Difference]: Finished difference Result 4356 states and 7519 transitions. [2024-11-07 01:00:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:00:23,935 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:00:23,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:23,947 INFO L225 Difference]: With dead ends: 4356 [2024-11-07 01:00:23,947 INFO L226 Difference]: Without dead ends: 3637 [2024-11-07 01:00:23,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:00:23,950 INFO L432 NwaCegarLoop]: 4519 mSDtfsCounter, 5458 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3342 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5476 SdHoareTripleChecker+Valid, 22286 SdHoareTripleChecker+Invalid, 3405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:23,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5476 Valid, 22286 Invalid, 3405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3342 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 01:00:23,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2024-11-07 01:00:24,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 3201. [2024-11-07 01:00:24,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3112 states have (on average 1.7696015424164524) internal successors, (5507), 3117 states have internal predecessors, (5507), 67 states have call successors, (67), 19 states have call predecessors, (67), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-11-07 01:00:24,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 5644 transitions. [2024-11-07 01:00:24,048 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 5644 transitions. Word has length 168 [2024-11-07 01:00:24,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:24,048 INFO L471 AbstractCegarLoop]: Abstraction has 3201 states and 5644 transitions. [2024-11-07 01:00:24,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:24,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 5644 transitions. [2024-11-07 01:00:24,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:00:24,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:24,050 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:24,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:00:24,050 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:24,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:24,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1713660775, now seen corresponding path program 1 times [2024-11-07 01:00:24,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:24,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862081488] [2024-11-07 01:00:24,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:24,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:24,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:24,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:00:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:24,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:00:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:24,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:00:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:24,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:00:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:24,285 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 01:00:24,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:24,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862081488] [2024-11-07 01:00:24,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862081488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:24,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:24,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:00:24,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859263051] [2024-11-07 01:00:24,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:24,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:00:24,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:24,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:00:24,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:00:24,286 INFO L87 Difference]: Start difference. First operand 3201 states and 5644 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:27,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:27,010 INFO L93 Difference]: Finished difference Result 5657 states and 9580 transitions. [2024-11-07 01:00:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:00:27,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:00:27,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:27,062 INFO L225 Difference]: With dead ends: 5657 [2024-11-07 01:00:27,062 INFO L226 Difference]: Without dead ends: 4596 [2024-11-07 01:00:27,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:00:27,072 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5456 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3338 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5474 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:27,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5474 Valid, 22284 Invalid, 3403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3338 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 01:00:27,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2024-11-07 01:00:27,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 3886. [2024-11-07 01:00:27,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3886 states, 3743 states have (on average 1.7317659631311781) internal successors, (6482), 3750 states have internal predecessors, (6482), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-11-07 01:00:27,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 6707 transitions. [2024-11-07 01:00:27,232 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 6707 transitions. Word has length 168 [2024-11-07 01:00:27,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:27,233 INFO L471 AbstractCegarLoop]: Abstraction has 3886 states and 6707 transitions. [2024-11-07 01:00:27,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:27,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 6707 transitions. [2024-11-07 01:00:27,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:00:27,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:27,237 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:27,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:00:27,237 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:27,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:27,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1375373225, now seen corresponding path program 1 times [2024-11-07 01:00:27,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:27,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160477612] [2024-11-07 01:00:27,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:27,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:27,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:27,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:00:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:27,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:00:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:27,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:00:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:27,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:00:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:27,450 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 01:00:27,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:27,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160477612] [2024-11-07 01:00:27,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160477612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:27,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:27,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:00:27,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533400641] [2024-11-07 01:00:27,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:27,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:00:27,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:27,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:00:27,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:00:27,456 INFO L87 Difference]: Start difference. First operand 3886 states and 6707 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:30,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:30,076 INFO L93 Difference]: Finished difference Result 8162 states and 13523 transitions. [2024-11-07 01:00:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:00:30,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:00:30,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:30,097 INFO L225 Difference]: With dead ends: 8162 [2024-11-07 01:00:30,097 INFO L226 Difference]: Without dead ends: 6416 [2024-11-07 01:00:30,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:00:30,102 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5452 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3329 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5470 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:30,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5470 Valid, 22284 Invalid, 3394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3329 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 01:00:30,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6416 states. [2024-11-07 01:00:30,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6416 to 5257. [2024-11-07 01:00:30,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5006 states have (on average 1.6843787455053936) internal successors, (8432), 5017 states have internal predecessors, (8432), 187 states have call successors, (187), 55 states have call predecessors, (187), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-11-07 01:00:30,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 8839 transitions. [2024-11-07 01:00:30,243 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 8839 transitions. Word has length 168 [2024-11-07 01:00:30,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:30,243 INFO L471 AbstractCegarLoop]: Abstraction has 5257 states and 8839 transitions. [2024-11-07 01:00:30,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:30,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 8839 transitions. [2024-11-07 01:00:30,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:00:30,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:30,246 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:30,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:00:30,247 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:30,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:30,247 INFO L85 PathProgramCache]: Analyzing trace with hash -948818727, now seen corresponding path program 1 times [2024-11-07 01:00:30,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:30,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948473299] [2024-11-07 01:00:30,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:30,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:30,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:30,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:00:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:30,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:00:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:30,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:00:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:30,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:00:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:30,697 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 01:00:30,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:30,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948473299] [2024-11-07 01:00:30,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948473299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:30,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:30,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:00:30,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545445284] [2024-11-07 01:00:30,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:30,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:00:30,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:30,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:00:30,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:00:30,704 INFO L87 Difference]: Start difference. First operand 5257 states and 8839 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:33,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:33,389 INFO L93 Difference]: Finished difference Result 13171 states and 21425 transitions. [2024-11-07 01:00:33,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:00:33,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:00:33,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:33,430 INFO L225 Difference]: With dead ends: 13171 [2024-11-07 01:00:33,431 INFO L226 Difference]: Without dead ends: 10054 [2024-11-07 01:00:33,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:00:33,439 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5448 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3320 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5466 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:33,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5466 Valid, 22284 Invalid, 3385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3320 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 01:00:33,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10054 states. [2024-11-07 01:00:33,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10054 to 8004. [2024-11-07 01:00:33,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8004 states, 7537 states have (on average 1.6369908451638584) internal successors, (12338), 7556 states have internal predecessors, (12338), 347 states have call successors, (347), 103 states have call predecessors, (347), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-07 01:00:33,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8004 states to 8004 states and 13127 transitions. [2024-11-07 01:00:33,780 INFO L78 Accepts]: Start accepts. Automaton has 8004 states and 13127 transitions. Word has length 168 [2024-11-07 01:00:33,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:33,781 INFO L471 AbstractCegarLoop]: Abstraction has 8004 states and 13127 transitions. [2024-11-07 01:00:33,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:33,782 INFO L276 IsEmpty]: Start isEmpty. Operand 8004 states and 13127 transitions. [2024-11-07 01:00:33,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:00:33,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:33,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:33,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:00:33,791 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:33,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:33,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1489248233, now seen corresponding path program 1 times [2024-11-07 01:00:33,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:33,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518021001] [2024-11-07 01:00:33,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:33,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:33,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:33,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:00:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:34,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:00:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:34,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:00:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:34,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:00:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:34,113 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 01:00:34,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:34,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518021001] [2024-11-07 01:00:34,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518021001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:34,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:34,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:00:34,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504442899] [2024-11-07 01:00:34,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:34,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:00:34,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:34,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:00:34,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:00:34,119 INFO L87 Difference]: Start difference. First operand 8004 states and 13127 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:37,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:37,117 INFO L93 Difference]: Finished difference Result 23188 states and 37287 transitions. [2024-11-07 01:00:37,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:00:37,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:00:37,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:37,157 INFO L225 Difference]: With dead ends: 23188 [2024-11-07 01:00:37,157 INFO L226 Difference]: Without dead ends: 17324 [2024-11-07 01:00:37,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:00:37,171 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5450 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3306 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5468 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:37,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5468 Valid, 22284 Invalid, 3371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3306 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 01:00:37,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17324 states. [2024-11-07 01:00:37,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17324 to 13511. [2024-11-07 01:00:37,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13511 states, 12612 states have (on average 1.5991119568664764) internal successors, (20168), 12647 states have internal predecessors, (20168), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-07 01:00:37,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13511 states to 13511 states and 21775 transitions. [2024-11-07 01:00:37,644 INFO L78 Accepts]: Start accepts. Automaton has 13511 states and 21775 transitions. Word has length 168 [2024-11-07 01:00:37,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:37,644 INFO L471 AbstractCegarLoop]: Abstraction has 13511 states and 21775 transitions. [2024-11-07 01:00:37,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 13511 states and 21775 transitions. [2024-11-07 01:00:37,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:00:37,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:37,651 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:00:37,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:00:37,651 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:37,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:37,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1645228775, now seen corresponding path program 1 times [2024-11-07 01:00:37,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:37,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161814438] [2024-11-07 01:00:37,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:37,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:37,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:37,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:00:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:37,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:00:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:37,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:00:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:37,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:00:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:37,866 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 01:00:37,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:37,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161814438] [2024-11-07 01:00:37,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161814438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:37,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:37,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:00:37,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106632464] [2024-11-07 01:00:37,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:37,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:00:37,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:37,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:00:37,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:00:37,867 INFO L87 Difference]: Start difference. First operand 13511 states and 21775 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:39,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:39,715 INFO L93 Difference]: Finished difference Result 28900 states and 46552 transitions. [2024-11-07 01:00:39,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:00:39,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:00:39,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:39,761 INFO L225 Difference]: With dead ends: 28900 [2024-11-07 01:00:39,762 INFO L226 Difference]: Without dead ends: 17529 [2024-11-07 01:00:39,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:00:39,785 INFO L432 NwaCegarLoop]: 4259 mSDtfsCounter, 5043 mSDsluCounter, 16783 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 21042 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:39,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5062 Valid, 21042 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1676 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:00:39,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17529 states. [2024-11-07 01:00:40,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17529 to 13511. [2024-11-07 01:00:40,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13511 states, 12612 states have (on average 1.5964954012052015) internal successors, (20135), 12647 states have internal predecessors, (20135), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-07 01:00:40,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13511 states to 13511 states and 21742 transitions. [2024-11-07 01:00:40,446 INFO L78 Accepts]: Start accepts. Automaton has 13511 states and 21742 transitions. Word has length 168 [2024-11-07 01:00:40,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:40,446 INFO L471 AbstractCegarLoop]: Abstraction has 13511 states and 21742 transitions. [2024-11-07 01:00:40,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:40,446 INFO L276 IsEmpty]: Start isEmpty. Operand 13511 states and 21742 transitions. [2024-11-07 01:00:40,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:00:40,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:40,461 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:40,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:00:40,461 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:40,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:40,462 INFO L85 PathProgramCache]: Analyzing trace with hash 861868699, now seen corresponding path program 1 times [2024-11-07 01:00:40,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:40,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470065888] [2024-11-07 01:00:40,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:40,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:40,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:40,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:00:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:40,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:00:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:40,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:00:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:40,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:00:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:40,858 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 01:00:40,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:40,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470065888] [2024-11-07 01:00:40,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470065888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:40,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:40,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:00:40,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806790286] [2024-11-07 01:00:40,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:40,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:00:40,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:40,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:00:40,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:00:40,860 INFO L87 Difference]: Start difference. First operand 13511 states and 21742 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:44,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:44,202 INFO L93 Difference]: Finished difference Result 43156 states and 68909 transitions. [2024-11-07 01:00:44,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:00:44,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:00:44,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:44,275 INFO L225 Difference]: With dead ends: 43156 [2024-11-07 01:00:44,275 INFO L226 Difference]: Without dead ends: 31785 [2024-11-07 01:00:44,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:00:44,301 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5439 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3253 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5457 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:44,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5457 Valid, 22284 Invalid, 3318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3253 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 01:00:44,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31785 states. [2024-11-07 01:00:45,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31785 to 24620. [2024-11-07 01:00:45,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24620 states, 22857 states have (on average 1.570853567834799) internal successors, (35905), 22924 states have internal predecessors, (35905), 1307 states have call successors, (1307), 391 states have call predecessors, (1307), 454 states have return successors, (2098), 1368 states have call predecessors, (2098), 1305 states have call successors, (2098) [2024-11-07 01:00:45,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24620 states to 24620 states and 39310 transitions. [2024-11-07 01:00:45,570 INFO L78 Accepts]: Start accepts. Automaton has 24620 states and 39310 transitions. Word has length 168 [2024-11-07 01:00:45,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:45,571 INFO L471 AbstractCegarLoop]: Abstraction has 24620 states and 39310 transitions. [2024-11-07 01:00:45,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:45,571 INFO L276 IsEmpty]: Start isEmpty. Operand 24620 states and 39310 transitions. [2024-11-07 01:00:45,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:00:45,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:45,582 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:45,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:00:45,583 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:45,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:45,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1274014503, now seen corresponding path program 1 times [2024-11-07 01:00:45,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:45,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129897504] [2024-11-07 01:00:45,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:45,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:45,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:45,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:00:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:45,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:00:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:45,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:00:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:45,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:00:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:45,782 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 01:00:45,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:45,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129897504] [2024-11-07 01:00:45,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129897504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:45,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:45,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:00:45,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974984114] [2024-11-07 01:00:45,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:45,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:00:45,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:45,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:00:45,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:00:45,783 INFO L87 Difference]: Start difference. First operand 24620 states and 39310 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:50,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:50,330 INFO L93 Difference]: Finished difference Result 83227 states and 133155 transitions. [2024-11-07 01:00:50,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:00:50,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:00:50,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:50,493 INFO L225 Difference]: With dead ends: 83227 [2024-11-07 01:00:50,493 INFO L226 Difference]: Without dead ends: 60747 [2024-11-07 01:00:50,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:00:50,539 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5438 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3240 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5456 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:50,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5456 Valid, 22284 Invalid, 3305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3240 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 01:00:50,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60747 states. [2024-11-07 01:00:52,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60747 to 46897. [2024-11-07 01:00:52,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46897 states, 43406 states have (on average 1.555798737501728) internal successors, (67531), 43537 states have internal predecessors, (67531), 2587 states have call successors, (2587), 775 states have call predecessors, (2587), 902 states have return successors, (4900), 2712 states have call predecessors, (4900), 2585 states have call successors, (4900) [2024-11-07 01:00:52,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46897 states to 46897 states and 75018 transitions. [2024-11-07 01:00:52,837 INFO L78 Accepts]: Start accepts. Automaton has 46897 states and 75018 transitions. Word has length 168 [2024-11-07 01:00:52,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:52,837 INFO L471 AbstractCegarLoop]: Abstraction has 46897 states and 75018 transitions. [2024-11-07 01:00:52,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:52,837 INFO L276 IsEmpty]: Start isEmpty. Operand 46897 states and 75018 transitions. [2024-11-07 01:00:52,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:00:52,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:52,857 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:52,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:00:52,857 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:52,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:52,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1204366629, now seen corresponding path program 1 times [2024-11-07 01:00:52,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:52,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465127787] [2024-11-07 01:00:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:52,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:52,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:52,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:00:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:53,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:00:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:53,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:00:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:53,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:00:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:53,046 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 01:00:53,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:53,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465127787] [2024-11-07 01:00:53,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465127787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:53,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:53,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:00:53,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756123408] [2024-11-07 01:00:53,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:53,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:00:53,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:53,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:00:53,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:00:53,047 INFO L87 Difference]: Start difference. First operand 46897 states and 75018 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:59,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:59,879 INFO L93 Difference]: Finished difference Result 163366 states and 263489 transitions. [2024-11-07 01:00:59,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:00:59,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:00:59,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:01:00,257 INFO L225 Difference]: With dead ends: 163366 [2024-11-07 01:01:00,257 INFO L226 Difference]: Without dead ends: 118609 [2024-11-07 01:01:00,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:01:00,369 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5437 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3227 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5455 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:01:00,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5455 Valid, 22284 Invalid, 3292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3227 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 01:01:00,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118609 states. [2024-11-07 01:01:03,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118609 to 91578. [2024-11-07 01:01:03,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91578 states, 84631 states have (on average 1.5475771289480214) internal successors, (130973), 84890 states have internal predecessors, (130973), 5147 states have call successors, (5147), 1543 states have call predecessors, (5147), 1798 states have return successors, (11962), 5400 states have call predecessors, (11962), 5145 states have call successors, (11962) [2024-11-07 01:01:03,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91578 states to 91578 states and 148082 transitions. [2024-11-07 01:01:03,987 INFO L78 Accepts]: Start accepts. Automaton has 91578 states and 148082 transitions. Word has length 168 [2024-11-07 01:01:03,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:01:03,988 INFO L471 AbstractCegarLoop]: Abstraction has 91578 states and 148082 transitions. [2024-11-07 01:01:03,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:03,988 INFO L276 IsEmpty]: Start isEmpty. Operand 91578 states and 148082 transitions. [2024-11-07 01:01:04,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:01:04,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:01:04,023 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:01:04,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:01:04,024 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:01:04,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:01:04,024 INFO L85 PathProgramCache]: Analyzing trace with hash -786477927, now seen corresponding path program 1 times [2024-11-07 01:01:04,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:01:04,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751871532] [2024-11-07 01:01:04,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:01:04,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:01:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:04,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:01:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:04,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:01:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:04,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:01:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:04,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:01:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:04,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:01:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:04,186 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 01:01:04,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:01:04,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751871532] [2024-11-07 01:01:04,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751871532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:01:04,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:01:04,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:01:04,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163003166] [2024-11-07 01:01:04,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:01:04,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:01:04,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:01:04,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:01:04,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:01:04,188 INFO L87 Difference]: Start difference. First operand 91578 states and 148082 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:10,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:01:10,742 INFO L93 Difference]: Finished difference Result 209666 states and 345979 transitions. [2024-11-07 01:01:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:01:10,742 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:01:10,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:01:11,110 INFO L225 Difference]: With dead ends: 209666 [2024-11-07 01:01:11,110 INFO L226 Difference]: Without dead ends: 120228 [2024-11-07 01:01:11,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:01:11,282 INFO L432 NwaCegarLoop]: 4259 mSDtfsCounter, 5044 mSDsluCounter, 16783 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5063 SdHoareTripleChecker+Valid, 21042 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:01:11,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5063 Valid, 21042 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:01:11,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120228 states. [2024-11-07 01:01:15,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120228 to 91578. [2024-11-07 01:01:15,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91578 states, 84631 states have (on average 1.5445404166322034) internal successors, (130716), 84890 states have internal predecessors, (130716), 5147 states have call successors, (5147), 1543 states have call predecessors, (5147), 1798 states have return successors, (11962), 5400 states have call predecessors, (11962), 5145 states have call successors, (11962) [2024-11-07 01:01:15,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91578 states to 91578 states and 147825 transitions. [2024-11-07 01:01:15,695 INFO L78 Accepts]: Start accepts. Automaton has 91578 states and 147825 transitions. Word has length 168 [2024-11-07 01:01:15,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:01:15,695 INFO L471 AbstractCegarLoop]: Abstraction has 91578 states and 147825 transitions. [2024-11-07 01:01:15,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:15,696 INFO L276 IsEmpty]: Start isEmpty. Operand 91578 states and 147825 transitions. [2024-11-07 01:01:15,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:01:15,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:01:15,731 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:01:15,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:01:15,731 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:01:15,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:01:15,732 INFO L85 PathProgramCache]: Analyzing trace with hash 612475675, now seen corresponding path program 1 times [2024-11-07 01:01:15,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:01:15,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722897254] [2024-11-07 01:01:15,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:01:15,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:01:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:15,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:01:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:15,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:01:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:15,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:01:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:15,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:01:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:15,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:01:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:15,929 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 01:01:15,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:01:15,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722897254] [2024-11-07 01:01:15,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722897254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:01:15,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:01:15,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:01:15,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997593718] [2024-11-07 01:01:15,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:01:15,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:01:15,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:01:15,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:01:15,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:01:15,931 INFO L87 Difference]: Start difference. First operand 91578 states and 147825 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:26,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:01:26,995 INFO L93 Difference]: Finished difference Result 365115 states and 592001 transitions. [2024-11-07 01:01:26,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:01:26,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:01:26,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted.