./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-52.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_fillercode_fillercodestructure_filler-pr-cn_file-52.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', 'f936db2b47677a90e81718d3591b9d45243b1a66e00c73ec4ccd3f4a235b10d9'] 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_fillercode_fillercodestructure_filler-pr-cn_file-52.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 f936db2b47677a90e81718d3591b9d45243b1a66e00c73ec4ccd3f4a235b10d9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 06:32:01,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 06:32:01,530 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 06:32:01,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 06:32:01,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 06:32:01,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 06:32:01,568 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 06:32:01,568 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 06:32:01,569 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 06:32:01,569 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 06:32:01,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 06:32:01,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 06:32:01,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 06:32:01,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 06:32:01,569 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 06:32:01,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 06:32:01,570 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 06:32:01,570 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 06:32:01,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 06:32:01,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 06:32:01,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 06:32:01,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 06:32:01,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 06:32:01,571 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 06:32:01,571 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 06:32:01,571 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 06:32:01,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 06:32:01,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 06:32:01,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 06:32:01,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 06:32:01,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 06:32:01,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 06:32:01,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 06:32:01,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 06:32:01,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 06:32:01,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 06:32:01,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 06:32:01,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 06:32:01,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 06:32:01,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 06:32:01,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 06:32:01,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 06:32:01,573 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 -> f936db2b47677a90e81718d3591b9d45243b1a66e00c73ec4ccd3f4a235b10d9 [2024-11-07 06:32:01,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 06:32:01,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 06:32:01,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 06:32:01,896 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 06:32:01,897 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 06:32:01,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-52.i [2024-11-07 06:32:03,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 06:32:03,540 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 06:32:03,542 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-52.i [2024-11-07 06:32:03,550 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ddd0aea70/730c137cf5b54ad994d87655cb08c6ee/FLAG8233bef06 [2024-11-07 06:32:03,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ddd0aea70/730c137cf5b54ad994d87655cb08c6ee [2024-11-07 06:32:03,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 06:32:03,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 06:32:03,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 06:32:03,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 06:32:03,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 06:32:03,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:03,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dcf9cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03, skipping insertion in model container [2024-11-07 06:32:03,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:03,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 06:32:03,748 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_fillercode_fillercodestructure_filler-pr-cn_file-52.i[919,932] [2024-11-07 06:32:03,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 06:32:03,831 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 06:32:03,844 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_fillercode_fillercodestructure_filler-pr-cn_file-52.i[919,932] [2024-11-07 06:32:03,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 06:32:03,901 INFO L204 MainTranslator]: Completed translation [2024-11-07 06:32:03,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03 WrapperNode [2024-11-07 06:32:03,904 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 06:32:03,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 06:32:03,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 06:32:03,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 06:32:03,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:03,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:03,970 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2024-11-07 06:32:03,970 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 06:32:03,971 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 06:32:03,971 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 06:32:03,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 06:32:03,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:03,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:03,993 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:04,010 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 06:32:04,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:04,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:04,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:04,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:04,025 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:04,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:04,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 06:32:04,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 06:32:04,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 06:32:04,030 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 06:32:04,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (1/1) ... [2024-11-07 06:32:04,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 06:32:04,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 06:32:04,066 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 06:32:04,072 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 06:32:04,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 06:32:04,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 06:32:04,097 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 06:32:04,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 06:32:04,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 06:32:04,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 06:32:04,202 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 06:32:04,204 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 06:32:04,800 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-07 06:32:04,801 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 06:32:04,814 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 06:32:04,816 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 06:32:04,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:32:04 BoogieIcfgContainer [2024-11-07 06:32:04,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 06:32:04,819 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 06:32:04,819 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 06:32:04,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 06:32:04,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:32:03" (1/3) ... [2024-11-07 06:32:04,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eaf67d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:32:04, skipping insertion in model container [2024-11-07 06:32:04,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:32:03" (2/3) ... [2024-11-07 06:32:04,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eaf67d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:32:04, skipping insertion in model container [2024-11-07 06:32:04,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:32:04" (3/3) ... [2024-11-07 06:32:04,829 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-52.i [2024-11-07 06:32:04,844 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 06:32:04,846 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 06:32:04,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 06:32:04,942 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;@769f14b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 06:32:04,943 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 06:32:04,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-07 06:32:04,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-07 06:32:04,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:32:04,971 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:32:04,972 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:32:04,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:32:04,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1659906726, now seen corresponding path program 1 times [2024-11-07 06:32:04,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:32:04,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003838853] [2024-11-07 06:32:04,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:32:04,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:32:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:32:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:32:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:32:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:32:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:32:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:32:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:32:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:32:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:32:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:32:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:32:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:32:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:32:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:32:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:32:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:32:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:32:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:32:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:32:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:32:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 06:32:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:32:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 06:32:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:32:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 06:32:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:32:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 06:32:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 06:32:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-07 06:32:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 06:32:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 06:32:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 06:32:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-07 06:32:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-07 06:32:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:05,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-07 06:32:05,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:32:05,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003838853] [2024-11-07 06:32:05,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003838853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:32:05,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:32:05,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 06:32:05,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049804130] [2024-11-07 06:32:05,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:32:05,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 06:32:05,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:32:05,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 06:32:05,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 06:32:05,700 INFO L87 Difference]: Start difference. First operand has 105 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-07 06:32:05,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:32:05,766 INFO L93 Difference]: Finished difference Result 203 states and 358 transitions. [2024-11-07 06:32:05,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 06:32:05,768 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 218 [2024-11-07 06:32:05,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:32:05,777 INFO L225 Difference]: With dead ends: 203 [2024-11-07 06:32:05,777 INFO L226 Difference]: Without dead ends: 101 [2024-11-07 06:32:05,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 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 06:32:05,790 INFO L432 NwaCegarLoop]: 158 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, 158 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 06:32:05,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 06:32:05,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-07 06:32:05,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-07 06:32:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 65 states have internal predecessors, (90), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-07 06:32:05,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 158 transitions. [2024-11-07 06:32:05,856 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 158 transitions. Word has length 218 [2024-11-07 06:32:05,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:32:05,858 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 158 transitions. [2024-11-07 06:32:05,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-07 06:32:05,859 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 158 transitions. [2024-11-07 06:32:05,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-07 06:32:05,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:32:05,866 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:32:05,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 06:32:05,866 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:32:05,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:32:05,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1018310690, now seen corresponding path program 1 times [2024-11-07 06:32:05,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:32:05,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052888241] [2024-11-07 06:32:05,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:32:05,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:32:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:32:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:32:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:32:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:32:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:32:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:32:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:32:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:32:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:32:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:32:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:32:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:32:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:32:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:32:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:32:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:32:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:32:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:32:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:32:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:32:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 06:32:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:32:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 06:32:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:32:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 06:32:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:32:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 06:32:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 06:32:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-07 06:32:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 06:32:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 06:32:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 06:32:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-07 06:32:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-07 06:32:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:06,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-07 06:32:06,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:32:06,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052888241] [2024-11-07 06:32:06,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052888241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:32:06,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:32:06,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 06:32:06,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028762402] [2024-11-07 06:32:06,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:32:06,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 06:32:06,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:32:06,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 06:32:06,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 06:32:06,926 INFO L87 Difference]: Start difference. First operand 101 states and 158 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 06:32:07,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:32:07,300 INFO L93 Difference]: Finished difference Result 267 states and 419 transitions. [2024-11-07 06:32:07,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 06:32:07,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 218 [2024-11-07 06:32:07,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:32:07,307 INFO L225 Difference]: With dead ends: 267 [2024-11-07 06:32:07,309 INFO L226 Difference]: Without dead ends: 169 [2024-11-07 06:32:07,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 06:32:07,313 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 100 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 06:32:07,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 599 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 06:32:07,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-07 06:32:07,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 166. [2024-11-07 06:32:07,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 113 states have (on average 1.424778761061947) internal successors, (161), 114 states have internal predecessors, (161), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-07 06:32:07,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 261 transitions. [2024-11-07 06:32:07,352 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 261 transitions. Word has length 218 [2024-11-07 06:32:07,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:32:07,354 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 261 transitions. [2024-11-07 06:32:07,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 06:32:07,355 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 261 transitions. [2024-11-07 06:32:07,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-07 06:32:07,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:32:07,363 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:32:07,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 06:32:07,364 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:32:07,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:32:07,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1441012516, now seen corresponding path program 1 times [2024-11-07 06:32:07,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:32:07,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066389780] [2024-11-07 06:32:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:32:07,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:32:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:32:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:32:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:32:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:32:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:32:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:32:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:32:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:32:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:32:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:32:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:32:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:32:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:32:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:32:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:32:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:32:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:32:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:32:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:32:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:32:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 06:32:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:32:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 06:32:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:32:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 06:32:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 06:32:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 06:32:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 06:32:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-07 06:32:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 06:32:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 06:32:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 06:32:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-07 06:32:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-07 06:32:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:32:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-07 06:32:07,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:32:07,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066389780] [2024-11-07 06:32:07,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066389780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:32:07,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:32:07,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 06:32:07,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034002814] [2024-11-07 06:32:07,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:32:07,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 06:32:07,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:32:07,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 06:32:07,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 06:32:07,969 INFO L87 Difference]: Start difference. First operand 166 states and 261 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 06:32:08,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:32:08,058 INFO L93 Difference]: Finished difference Result 456 states and 719 transitions. [2024-11-07 06:32:08,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 06:32:08,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 218 [2024-11-07 06:32:08,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:32:08,068 INFO L225 Difference]: With dead ends: 456 [2024-11-07 06:32:08,069 INFO L226 Difference]: Without dead ends: 293 [2024-11-07 06:32:08,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 06:32:08,072 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 100 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 06:32:08,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 353 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 06:32:08,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-07 06:32:08,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 290. [2024-11-07 06:32:08,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 201 states have (on average 1.4378109452736318) internal successors, (289), 204 states have internal predecessors, (289), 84 states have call successors, (84), 4 states have call predecessors, (84), 4 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-07 06:32:08,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 457 transitions. [2024-11-07 06:32:08,133 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 457 transitions. Word has length 218 [2024-11-07 06:32:08,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:32:08,135 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 457 transitions. [2024-11-07 06:32:08,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-07 06:32:08,136 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 457 transitions. [2024-11-07 06:32:08,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-07 06:32:08,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:32:08,141 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:32:08,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 06:32:08,142 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:32:08,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:32:08,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1575797234, now seen corresponding path program 1 times [2024-11-07 06:32:08,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:32:08,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581568486] [2024-11-07 06:32:08,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:32:08,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:32:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat