./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-40.i --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/hardness-nfm22/hardness_operatoramount_amount250_file-40.i', '-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', '9e85713b72e5d01bea4e63120cd7f7817e79a0a4cf6478b3b61dbe0b51226a70'] 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/hardness-nfm22/hardness_operatoramount_amount250_file-40.i -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 9e85713b72e5d01bea4e63120cd7f7817e79a0a4cf6478b3b61dbe0b51226a70 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 09:20:11,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 09:20:11,698 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 09:20:11,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 09:20:11,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 09:20:11,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 09:20:11,727 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 09:20:11,727 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 09:20:11,727 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 09:20:11,727 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 09:20:11,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 09:20:11,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 09:20:11,728 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 09:20:11,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 09:20:11,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 09:20:11,728 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 09:20:11,729 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 09:20:11,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 09:20:11,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 09:20:11,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 09:20:11,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 09:20:11,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 09:20:11,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 09:20:11,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 09:20:11,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 09:20:11,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 09:20:11,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 09:20:11,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 09:20:11,729 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 -> 9e85713b72e5d01bea4e63120cd7f7817e79a0a4cf6478b3b61dbe0b51226a70 [2024-11-07 09:20:11,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 09:20:11,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 09:20:11,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 09:20:11,968 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 09:20:11,968 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 09:20:11,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-40.i [2024-11-07 09:20:13,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 09:20:13,353 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 09:20:13,353 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-40.i [2024-11-07 09:20:13,364 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/25b173bdd/056fa905fa1b401192fdc0c7c13b369b/FLAG30eed236f [2024-11-07 09:20:13,665 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/25b173bdd/056fa905fa1b401192fdc0c7c13b369b [2024-11-07 09:20:13,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 09:20:13,667 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 09:20:13,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 09:20:13,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 09:20:13,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 09:20:13,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:13,673 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc1ddb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13, skipping insertion in model container [2024-11-07 09:20:13,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:13,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 09:20:13,793 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/hardness-nfm22/hardness_operatoramount_amount250_file-40.i[916,929] [2024-11-07 09:20:13,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 09:20:13,895 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 09:20:13,906 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/hardness-nfm22/hardness_operatoramount_amount250_file-40.i[916,929] [2024-11-07 09:20:13,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 09:20:13,976 INFO L204 MainTranslator]: Completed translation [2024-11-07 09:20:13,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13 WrapperNode [2024-11-07 09:20:13,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 09:20:13,977 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 09:20:13,977 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 09:20:13,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 09:20:13,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:14,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:14,081 INFO L138 Inliner]: procedures = 26, calls = 59, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 416 [2024-11-07 09:20:14,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 09:20:14,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 09:20:14,082 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 09:20:14,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 09:20:14,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:14,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:14,103 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:14,179 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 09:20:14,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:14,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:14,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:14,211 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:14,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:14,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:14,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 09:20:14,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 09:20:14,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 09:20:14,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 09:20:14,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (1/1) ... [2024-11-07 09:20:14,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 09:20:14,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 09:20:14,267 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 09:20:14,272 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 09:20:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 09:20:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 09:20:14,288 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 09:20:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 09:20:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 09:20:14,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 09:20:14,382 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 09:20:14,384 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 09:20:15,140 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-07 09:20:15,140 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 09:20:15,153 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 09:20:15,154 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 09:20:15,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:20:15 BoogieIcfgContainer [2024-11-07 09:20:15,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 09:20:15,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 09:20:15,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 09:20:15,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 09:20:15,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:20:13" (1/3) ... [2024-11-07 09:20:15,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e7b2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:20:15, skipping insertion in model container [2024-11-07 09:20:15,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:20:13" (2/3) ... [2024-11-07 09:20:15,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e7b2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:20:15, skipping insertion in model container [2024-11-07 09:20:15,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:20:15" (3/3) ... [2024-11-07 09:20:15,164 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-40.i [2024-11-07 09:20:15,174 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 09:20:15,174 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 09:20:15,220 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 09:20:15,232 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;@64688892, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 09:20:15,233 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 09:20:15,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 128 states have (on average 1.5) internal successors, (192), 129 states have internal predecessors, (192), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-07 09:20:15,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-07 09:20:15,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:20:15,256 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:20:15,256 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:20:15,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:20:15,259 INFO L85 PathProgramCache]: Analyzing trace with hash 450310052, now seen corresponding path program 1 times [2024-11-07 09:20:15,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:20:15,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935581390] [2024-11-07 09:20:15,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:20:15,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:20:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:20:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 09:20:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 09:20:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 09:20:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 09:20:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 09:20:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 09:20:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 09:20:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 09:20:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:20:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:20:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 09:20:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 09:20:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 09:20:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 09:20:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 09:20:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-07 09:20:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-07 09:20:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-07 09:20:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 09:20:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-07 09:20:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 09:20:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-07 09:20:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-07 09:20:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 09:20:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-07 09:20:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-07 09:20:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-07 09:20:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-07 09:20:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-07 09:20:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-07 09:20:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-07 09:20:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-07 09:20:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-07 09:20:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-07 09:20:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-11-07 09:20:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-11-07 09:20:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-07 09:20:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-07 09:20:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-11-07 09:20:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-11-07 09:20:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-07 09:20:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-07 09:20:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-11-07 09:20:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-11-07 09:20:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-11-07 09:20:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:15,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-07 09:20:15,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:20:15,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935581390] [2024-11-07 09:20:15,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935581390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 09:20:15,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 09:20:15,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 09:20:15,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589696102] [2024-11-07 09:20:15,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 09:20:15,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 09:20:15,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:20:15,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 09:20:15,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 09:20:15,848 INFO L87 Difference]: Start difference. First operand has 177 states, 128 states have (on average 1.5) internal successors, (192), 129 states have internal predecessors, (192), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) [2024-11-07 09:20:15,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:20:15,888 INFO L93 Difference]: Finished difference Result 347 states and 608 transitions. [2024-11-07 09:20:15,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 09:20:15,892 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) Word has length 303 [2024-11-07 09:20:15,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:20:15,899 INFO L225 Difference]: With dead ends: 347 [2024-11-07 09:20:15,899 INFO L226 Difference]: Without dead ends: 173 [2024-11-07 09:20:15,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 09:20:15,904 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 09:20:15,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 09:20:15,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-07 09:20:15,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-07 09:20:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 125 states have (on average 1.472) internal successors, (184), 125 states have internal predecessors, (184), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-07 09:20:15,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 276 transitions. [2024-11-07 09:20:15,947 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 276 transitions. Word has length 303 [2024-11-07 09:20:15,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:20:15,947 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 276 transitions. [2024-11-07 09:20:15,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) [2024-11-07 09:20:15,947 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 276 transitions. [2024-11-07 09:20:15,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-07 09:20:15,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:20:15,951 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:20:15,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 09:20:15,951 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:20:15,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:20:15,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1278480042, now seen corresponding path program 1 times [2024-11-07 09:20:15,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:20:15,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650386495] [2024-11-07 09:20:15,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:20:15,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:20:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:20:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 09:20:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 09:20:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 09:20:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 09:20:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 09:20:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 09:20:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 09:20:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 09:20:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:20:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:20:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 09:20:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 09:20:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 09:20:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 09:20:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 09:20:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-07 09:20:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-07 09:20:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-07 09:20:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 09:20:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-07 09:20:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 09:20:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-07 09:20:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-07 09:20:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 09:20:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-07 09:20:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-07 09:20:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-07 09:20:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-07 09:20:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-07 09:20:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-07 09:20:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-07 09:20:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-07 09:20:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-07 09:20:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-07 09:20:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-11-07 09:20:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-11-07 09:20:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-07 09:20:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-07 09:20:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-11-07 09:20:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-11-07 09:20:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-07 09:20:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-07 09:20:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-11-07 09:20:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-11-07 09:20:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-11-07 09:20:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:19,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-07 09:20:19,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:20:19,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650386495] [2024-11-07 09:20:19,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650386495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 09:20:19,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 09:20:19,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 09:20:19,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656641126] [2024-11-07 09:20:19,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 09:20:19,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 09:20:19,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:20:19,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 09:20:19,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-07 09:20:19,900 INFO L87 Difference]: Start difference. First operand 173 states and 276 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-07 09:20:22,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:20:22,780 INFO L93 Difference]: Finished difference Result 819 states and 1300 transitions. [2024-11-07 09:20:22,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 09:20:22,782 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 303 [2024-11-07 09:20:22,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:20:22,791 INFO L225 Difference]: With dead ends: 819 [2024-11-07 09:20:22,791 INFO L226 Difference]: Without dead ends: 649 [2024-11-07 09:20:22,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2024-11-07 09:20:22,795 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 2291 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2291 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 09:20:22,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2291 Valid, 2577 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 09:20:22,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-07 09:20:22,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 285. [2024-11-07 09:20:22,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 223 states have (on average 1.4887892376681615) internal successors, (332), 224 states have internal predecessors, (332), 58 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-07 09:20:22,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 448 transitions. [2024-11-07 09:20:22,842 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 448 transitions. Word has length 303 [2024-11-07 09:20:22,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:20:22,844 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 448 transitions. [2024-11-07 09:20:22,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-07 09:20:22,845 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 448 transitions. [2024-11-07 09:20:22,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-07 09:20:22,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:20:22,850 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:20:22,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 09:20:22,850 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:20:22,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:20:22,851 INFO L85 PathProgramCache]: Analyzing trace with hash -2096128492, now seen corresponding path program 1 times [2024-11-07 09:20:22,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:20:22,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054052037] [2024-11-07 09:20:22,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:20:22,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:20:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:20:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 09:20:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 09:20:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 09:20:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 09:20:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 09:20:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 09:20:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 09:20:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 09:20:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:20:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:20:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 09:20:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 09:20:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 09:20:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 09:20:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 09:20:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-07 09:20:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-07 09:20:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-07 09:20:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 09:20:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-07 09:20:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 09:20:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-07 09:20:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-07 09:20:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 09:20:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-07 09:20:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-07 09:20:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-07 09:20:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-07 09:20:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-07 09:20:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-07 09:20:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-07 09:20:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-07 09:20:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-07 09:20:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-07 09:20:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-11-07 09:20:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-11-07 09:20:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-07 09:20:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-07 09:20:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-11-07 09:20:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-11-07 09:20:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-07 09:20:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-07 09:20:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-11-07 09:20:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-11-07 09:20:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-11-07 09:20:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 4005 trivial. 0 not checked. [2024-11-07 09:20:23,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:20:23,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054052037] [2024-11-07 09:20:23,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054052037] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 09:20:23,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213261063] [2024-11-07 09:20:23,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:20:23,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:20:23,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 09:20:23,730 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 09:20:23,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 09:20:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:23,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 09:20:23,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 09:20:24,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 1653 proven. 99 refuted. 0 times theorem prover too weak. 2388 trivial. 0 not checked. [2024-11-07 09:20:24,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 09:20:24,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 36 proven. 99 refuted. 0 times theorem prover too weak. 4005 trivial. 0 not checked. [2024-11-07 09:20:24,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213261063] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 09:20:24,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 09:20:24,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 17 [2024-11-07 09:20:24,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522145034] [2024-11-07 09:20:24,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 09:20:24,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 09:20:24,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:20:24,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 09:20:24,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-11-07 09:20:24,805 INFO L87 Difference]: Start difference. First operand 285 states and 448 transitions. Second operand has 17 states, 17 states have (on average 10.176470588235293) internal successors, (173), 17 states have internal predecessors, (173), 5 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (126), 5 states have call predecessors, (126), 5 states have call successors, (126) [2024-11-07 09:20:26,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:20:26,557 INFO L93 Difference]: Finished difference Result 825 states and 1295 transitions. [2024-11-07 09:20:26,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-07 09:20:26,558 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 10.176470588235293) internal successors, (173), 17 states have internal predecessors, (173), 5 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (126), 5 states have call predecessors, (126), 5 states have call successors, (126) Word has length 303 [2024-11-07 09:20:26,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:20:26,561 INFO L225 Difference]: With dead ends: 825 [2024-11-07 09:20:26,562 INFO L226 Difference]: Without dead ends: 543 [2024-11-07 09:20:26,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 736 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=468, Invalid=1694, Unknown=0, NotChecked=0, Total=2162 [2024-11-07 09:20:26,563 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 1268 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 2307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 09:20:26,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 2035 Invalid, 2307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 09:20:26,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-07 09:20:26,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 450. [2024-11-07 09:20:26,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 336 states have (on average 1.4464285714285714) internal successors, (486), 338 states have internal predecessors, (486), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-07 09:20:26,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 694 transitions. [2024-11-07 09:20:26,605 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 694 transitions. Word has length 303 [2024-11-07 09:20:26,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:20:26,607 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 694 transitions. [2024-11-07 09:20:26,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.176470588235293) internal successors, (173), 17 states have internal predecessors, (173), 5 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (126), 5 states have call predecessors, (126), 5 states have call successors, (126) [2024-11-07 09:20:26,608 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 694 transitions. [2024-11-07 09:20:26,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-07 09:20:26,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:20:26,611 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:20:26,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 09:20:26,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:20:26,811 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:20:26,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:20:26,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1183002724, now seen corresponding path program 1 times [2024-11-07 09:20:26,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:20:26,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663664747] [2024-11-07 09:20:26,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:20:26,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:20:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:20:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 09:20:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 09:20:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 09:20:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 09:20:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 09:20:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 09:20:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 09:20:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 09:20:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:20:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:20:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 09:20:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 09:20:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 09:20:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 09:20:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 09:20:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-07 09:20:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-07 09:20:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-07 09:20:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 09:20:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-07 09:20:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 09:20:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-07 09:20:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-07 09:20:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 09:20:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-07 09:20:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-07 09:20:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-07 09:20:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-07 09:20:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-07 09:20:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-07 09:20:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-07 09:20:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-07 09:20:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-07 09:20:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-07 09:20:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-11-07 09:20:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-11-07 09:20:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-07 09:20:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-07 09:20:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-11-07 09:20:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-11-07 09:20:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-07 09:20:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-07 09:20:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-11-07 09:20:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-11-07 09:20:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-11-07 09:20:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-07 09:20:27,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:20:27,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663664747] [2024-11-07 09:20:27,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663664747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 09:20:27,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 09:20:27,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 09:20:27,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371876301] [2024-11-07 09:20:27,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 09:20:27,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 09:20:27,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:20:27,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 09:20:27,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 09:20:27,939 INFO L87 Difference]: Start difference. First operand 450 states and 694 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-07 09:20:29,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:20:29,785 INFO L93 Difference]: Finished difference Result 1653 states and 2501 transitions. [2024-11-07 09:20:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 09:20:29,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 303 [2024-11-07 09:20:29,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:20:29,799 INFO L225 Difference]: With dead ends: 1653 [2024-11-07 09:20:29,799 INFO L226 Difference]: Without dead ends: 1205 [2024-11-07 09:20:29,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-07 09:20:29,801 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 1516 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 09:20:29,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1273 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 09:20:29,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2024-11-07 09:20:29,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 592. [2024-11-07 09:20:29,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 476 states have (on average 1.495798319327731) internal successors, (712), 478 states have internal predecessors, (712), 104 states have call successors, (104), 11 states have call predecessors, (104), 11 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-07 09:20:29,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 920 transitions. [2024-11-07 09:20:29,861 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 920 transitions. Word has length 303 [2024-11-07 09:20:29,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:20:29,862 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 920 transitions. [2024-11-07 09:20:29,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-07 09:20:29,863 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 920 transitions. [2024-11-07 09:20:29,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-07 09:20:29,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:20:29,865 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:20:29,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 09:20:29,866 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:20:29,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:20:29,866 INFO L85 PathProgramCache]: Analyzing trace with hash 837501668, now seen corresponding path program 1 times [2024-11-07 09:20:29,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:20:29,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926352435] [2024-11-07 09:20:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:20:29,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:20:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:20:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 09:20:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 09:20:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 09:20:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 09:20:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 09:20:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 09:20:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 09:20:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 09:20:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:20:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:20:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 09:20:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 09:20:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 09:20:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 09:20:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 09:20:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-07 09:20:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-07 09:20:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-07 09:20:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 09:20:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-07 09:20:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 09:20:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-07 09:20:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-07 09:20:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 09:20:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-07 09:20:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-07 09:20:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-07 09:20:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-07 09:20:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-07 09:20:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-07 09:20:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-07 09:20:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-07 09:20:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-07 09:20:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-07 09:20:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-11-07 09:20:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-11-07 09:20:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-07 09:20:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-07 09:20:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-11-07 09:20:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-11-07 09:20:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-07 09:20:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-07 09:20:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-11-07 09:20:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-11-07 09:20:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-11-07 09:20:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 66 proven. 69 refuted. 0 times theorem prover too weak. 4005 trivial. 0 not checked. [2024-11-07 09:20:30,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:20:30,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926352435] [2024-11-07 09:20:30,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926352435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 09:20:30,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004533659] [2024-11-07 09:20:30,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:20:30,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:20:30,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 09:20:30,601 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 09:20:30,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 09:20:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:30,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-07 09:20:30,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 09:20:32,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 1557 proven. 345 refuted. 0 times theorem prover too weak. 2238 trivial. 0 not checked. [2024-11-07 09:20:32,215 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 09:20:32,705 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 39 proven. 228 refuted. 0 times theorem prover too weak. 3873 trivial. 0 not checked. [2024-11-07 09:20:32,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004533659] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 09:20:32,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 09:20:32,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 14, 11] total 23 [2024-11-07 09:20:32,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906556527] [2024-11-07 09:20:32,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 09:20:32,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 09:20:32,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:20:32,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 09:20:32,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-11-07 09:20:32,708 INFO L87 Difference]: Start difference. First operand 592 states and 920 transitions. Second operand has 23 states, 23 states have (on average 7.521739130434782) internal successors, (173), 23 states have internal predecessors, (173), 6 states have call successors, (132), 4 states have call predecessors, (132), 8 states have return successors, (134), 6 states have call predecessors, (134), 6 states have call successors, (134) [2024-11-07 09:20:34,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:20:34,383 INFO L93 Difference]: Finished difference Result 1538 states and 2308 transitions. [2024-11-07 09:20:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-07 09:20:34,384 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.521739130434782) internal successors, (173), 23 states have internal predecessors, (173), 6 states have call successors, (132), 4 states have call predecessors, (132), 8 states have return successors, (134), 6 states have call predecessors, (134), 6 states have call successors, (134) Word has length 303 [2024-11-07 09:20:34,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:20:34,390 INFO L225 Difference]: With dead ends: 1538 [2024-11-07 09:20:34,390 INFO L226 Difference]: Without dead ends: 949 [2024-11-07 09:20:34,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 681 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1430 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=990, Invalid=3566, Unknown=0, NotChecked=0, Total=4556 [2024-11-07 09:20:34,396 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 1531 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 09:20:34,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 1375 Invalid, 1989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 1645 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 09:20:34,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-07 09:20:34,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 590. [2024-11-07 09:20:34,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 478 states have (on average 1.4728033472803348) internal successors, (704), 480 states have internal predecessors, (704), 94 states have call successors, (94), 17 states have call predecessors, (94), 17 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-07 09:20:34,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 892 transitions. [2024-11-07 09:20:34,448 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 892 transitions. Word has length 303 [2024-11-07 09:20:34,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:20:34,449 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 892 transitions. [2024-11-07 09:20:34,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.521739130434782) internal successors, (173), 23 states have internal predecessors, (173), 6 states have call successors, (132), 4 states have call predecessors, (132), 8 states have return successors, (134), 6 states have call predecessors, (134), 6 states have call successors, (134) [2024-11-07 09:20:34,450 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 892 transitions. [2024-11-07 09:20:34,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-07 09:20:34,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:20:34,453 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:20:34,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 09:20:34,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:20:34,653 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:20:34,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:20:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash -547586995, now seen corresponding path program 1 times [2024-11-07 09:20:34,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:20:34,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669998834] [2024-11-07 09:20:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:20:34,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:20:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:20:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 09:20:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 09:20:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 09:20:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 09:20:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 09:20:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 09:20:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 09:20:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 09:20:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:20:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:20:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 09:20:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 09:20:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 09:20:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 09:20:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 09:20:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-07 09:20:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-07 09:20:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-07 09:20:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 09:20:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-07 09:20:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 09:20:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-07 09:20:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-07 09:20:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 09:20:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-07 09:20:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-07 09:20:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-07 09:20:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-07 09:20:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-07 09:20:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-07 09:20:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-07 09:20:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-07 09:20:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-07 09:20:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-07 09:20:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-11-07 09:20:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-11-07 09:20:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-07 09:20:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-07 09:20:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-11-07 09:20:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-11-07 09:20:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-07 09:20:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-07 09:20:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-11-07 09:20:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-11-07 09:20:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-11-07 09:20:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 4005 trivial. 0 not checked. [2024-11-07 09:20:35,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:20:35,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669998834] [2024-11-07 09:20:35,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669998834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 09:20:35,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523199481] [2024-11-07 09:20:35,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:20:35,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:20:35,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 09:20:35,705 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 09:20:35,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 09:20:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:20:35,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 09:20:35,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 09:20:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 633 proven. 9 refuted. 0 times theorem prover too weak. 3498 trivial. 0 not checked. [2024-11-07 09:20:40,256 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 09:20:40,863 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 126 proven. 9 refuted. 0 times theorem prover too weak. 4005 trivial. 0 not checked. [2024-11-07 09:20:40,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523199481] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 09:20:40,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 09:20:40,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 25 [2024-11-07 09:20:40,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933527269] [2024-11-07 09:20:40,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 09:20:40,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 09:20:40,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:20:40,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 09:20:40,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=518, Unknown=1, NotChecked=0, Total=600 [2024-11-07 09:20:40,865 INFO L87 Difference]: Start difference. First operand 590 states and 892 transitions. Second operand has 25 states, 25 states have (on average 6.88) internal successors, (172), 25 states have internal predecessors, (172), 6 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 5 states have call predecessors, (96), 6 states have call successors, (96) [2024-11-07 09:20:47,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:20:55,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:20:59,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:21:03,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:21:08,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:21:12,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:21:16,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:21:24,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:21:28,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:21:32,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:21:36,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:21:40,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:21:44,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]