./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.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-ps-co_file-31.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', 'e35b58fc5b5d3bd96f979b50ab552950d520b0e41c0cf9ea2d0c476079709cda'] 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-ps-co_file-31.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 e35b58fc5b5d3bd96f979b50ab552950d520b0e41c0cf9ea2d0c476079709cda --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 07:13:35,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 07:13:35,627 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 07:13:35,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 07:13:35,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 07:13:35,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 07:13:35,668 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 07:13:35,668 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 07:13:35,670 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 07:13:35,670 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 07:13:35,670 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 07:13:35,670 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 07:13:35,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 07:13:35,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 07:13:35,671 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 07:13:35,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 07:13:35,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 07:13:35,671 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 07:13:35,671 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 07:13:35,671 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 07:13:35,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 07:13:35,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 07:13:35,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 07:13:35,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 07:13:35,671 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 07:13:35,671 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 07:13:35,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 07:13:35,672 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 07:13:35,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 07:13:35,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 07:13:35,672 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 07:13:35,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 07:13:35,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 07:13:35,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 07:13:35,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 07:13:35,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 07:13:35,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 07:13:35,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 07:13:35,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 07:13:35,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 07:13:35,673 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 07:13:35,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 07:13:35,673 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 -> e35b58fc5b5d3bd96f979b50ab552950d520b0e41c0cf9ea2d0c476079709cda [2024-11-07 07:13:35,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 07:13:35,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 07:13:35,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 07:13:35,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 07:13:35,974 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 07:13:35,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i [2024-11-07 07:13:37,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 07:13:37,640 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 07:13:37,643 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i [2024-11-07 07:13:37,654 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/34e47208b/ca06e537347443fe8cec8e9ee447e5ea/FLAG7935d7fe1 [2024-11-07 07:13:37,926 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/34e47208b/ca06e537347443fe8cec8e9ee447e5ea [2024-11-07 07:13:37,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 07:13:37,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 07:13:37,930 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 07:13:37,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 07:13:37,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 07:13:37,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:13:37" (1/1) ... [2024-11-07 07:13:37,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f793b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:37, skipping insertion in model container [2024-11-07 07:13:37,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:13:37" (1/1) ... [2024-11-07 07:13:37,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 07:13:38,087 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-ps-co_file-31.i[919,932] [2024-11-07 07:13:38,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 07:13:38,179 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 07:13:38,186 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-ps-co_file-31.i[919,932] [2024-11-07 07:13:38,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 07:13:38,256 INFO L204 MainTranslator]: Completed translation [2024-11-07 07:13:38,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38 WrapperNode [2024-11-07 07:13:38,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 07:13:38,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 07:13:38,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 07:13:38,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 07:13:38,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (1/1) ... [2024-11-07 07:13:38,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (1/1) ... [2024-11-07 07:13:38,323 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 266 [2024-11-07 07:13:38,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 07:13:38,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 07:13:38,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 07:13:38,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 07:13:38,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (1/1) ... [2024-11-07 07:13:38,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (1/1) ... [2024-11-07 07:13:38,339 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (1/1) ... [2024-11-07 07:13:38,367 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 07:13:38,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (1/1) ... [2024-11-07 07:13:38,367 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (1/1) ... [2024-11-07 07:13:38,386 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (1/1) ... [2024-11-07 07:13:38,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (1/1) ... [2024-11-07 07:13:38,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (1/1) ... [2024-11-07 07:13:38,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (1/1) ... [2024-11-07 07:13:38,414 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 07:13:38,415 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 07:13:38,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 07:13:38,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 07:13:38,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (1/1) ... [2024-11-07 07:13:38,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 07:13:38,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 07:13:38,469 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 07:13:38,472 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 07:13:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 07:13:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 07:13:38,494 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 07:13:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 07:13:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 07:13:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 07:13:38,578 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 07:13:38,580 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 07:13:39,088 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-07 07:13:39,089 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 07:13:39,100 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 07:13:39,101 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 07:13:39,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:13:39 BoogieIcfgContainer [2024-11-07 07:13:39,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 07:13:39,103 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 07:13:39,103 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 07:13:39,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 07:13:39,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:13:37" (1/3) ... [2024-11-07 07:13:39,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0073c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:13:39, skipping insertion in model container [2024-11-07 07:13:39,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:13:38" (2/3) ... [2024-11-07 07:13:39,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0073c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:13:39, skipping insertion in model container [2024-11-07 07:13:39,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:13:39" (3/3) ... [2024-11-07 07:13:39,112 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i [2024-11-07 07:13:39,124 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 07:13:39,125 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 07:13:39,175 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 07:13:39,189 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;@37c330be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 07:13:39,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 07:13:39,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 71 states have internal predecessors, (97), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-07 07:13:39,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-07 07:13:39,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:13:39,214 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:13:39,215 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:13:39,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:13:39,219 INFO L85 PathProgramCache]: Analyzing trace with hash -166575295, now seen corresponding path program 1 times [2024-11-07 07:13:39,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:13:39,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941759375] [2024-11-07 07:13:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:13:39,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:13:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:13:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:13:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:13:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:13:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:13:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:13:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:13:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:13:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:13:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:13:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:13:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:13:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:13:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:13:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:13:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:13:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:13:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:13:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:13:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:13:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:13:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 07:13:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 07:13:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 07:13:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 07:13:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-07 07:13:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-07 07:13:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 07:13:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-07 07:13:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 07:13:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-07 07:13:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 07:13:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-07 07:13:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-07 07:13:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-07 07:13:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-07 07:13:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-07 07:13:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-07 07:13:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-07 07:13:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-07 07:13:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-07 07:13:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-07 07:13:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-07 07:13:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-07 07:13:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-07 07:13:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-07 07:13:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-07 07:13:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-07 07:13:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-07 07:13:39,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:13:39,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941759375] [2024-11-07 07:13:39,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941759375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:13:39,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:13:39,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 07:13:39,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692815252] [2024-11-07 07:13:39,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:13:39,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 07:13:39,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:13:39,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 07:13:39,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 07:13:39,977 INFO L87 Difference]: Start difference. First operand has 121 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 71 states have internal predecessors, (97), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-07 07:13:40,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:13:40,025 INFO L93 Difference]: Finished difference Result 235 states and 428 transitions. [2024-11-07 07:13:40,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 07:13:40,028 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 291 [2024-11-07 07:13:40,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:13:40,038 INFO L225 Difference]: With dead ends: 235 [2024-11-07 07:13:40,038 INFO L226 Difference]: Without dead ends: 117 [2024-11-07 07:13:40,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 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 07:13:40,047 INFO L432 NwaCegarLoop]: 186 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, 186 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 07:13:40,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 07:13:40,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-07 07:13:40,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-07 07:13:40,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 67 states have (on average 1.3432835820895523) internal successors, (90), 67 states have internal predecessors, (90), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-07 07:13:40,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 186 transitions. [2024-11-07 07:13:40,117 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 186 transitions. Word has length 291 [2024-11-07 07:13:40,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:13:40,119 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 186 transitions. [2024-11-07 07:13:40,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-07 07:13:40,120 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 186 transitions. [2024-11-07 07:13:40,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-07 07:13:40,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:13:40,127 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:13:40,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 07:13:40,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:13:40,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:13:40,129 INFO L85 PathProgramCache]: Analyzing trace with hash -312055487, now seen corresponding path program 1 times [2024-11-07 07:13:40,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:13:40,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051244967] [2024-11-07 07:13:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:13:40,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:13:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:13:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:13:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:13:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:13:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:13:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:13:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:13:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:13:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:13:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:13:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:13:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:13:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:13:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:13:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:13:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:13:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:13:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:13:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:13:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:13:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:13:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 07:13:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 07:13:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 07:13:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 07:13:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-07 07:13:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-07 07:13:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 07:13:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-07 07:13:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 07:13:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-07 07:13:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 07:13:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-07 07:13:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-07 07:13:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-07 07:13:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-07 07:13:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-07 07:13:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-07 07:13:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-07 07:13:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-07 07:13:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-07 07:13:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-07 07:13:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-07 07:13:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-07 07:13:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-07 07:13:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-07 07:13:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-07 07:13:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-07 07:13:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:40,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-07 07:13:40,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:13:40,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051244967] [2024-11-07 07:13:40,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051244967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:13:40,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:13:40,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 07:13:40,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690717586] [2024-11-07 07:13:40,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:13:40,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 07:13:40,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:13:40,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 07:13:40,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:13:40,655 INFO L87 Difference]: Start difference. First operand 117 states and 186 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-07 07:13:40,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:13:40,762 INFO L93 Difference]: Finished difference Result 344 states and 550 transitions. [2024-11-07 07:13:40,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 07:13:40,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 291 [2024-11-07 07:13:40,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:13:40,769 INFO L225 Difference]: With dead ends: 344 [2024-11-07 07:13:40,771 INFO L226 Difference]: Without dead ends: 230 [2024-11-07 07:13:40,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 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 07:13:40,775 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 174 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 07:13:40,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 530 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 07:13:40,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-07 07:13:40,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 121. [2024-11-07 07:13:40,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-07 07:13:40,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 191 transitions. [2024-11-07 07:13:40,810 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 191 transitions. Word has length 291 [2024-11-07 07:13:40,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:13:40,814 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 191 transitions. [2024-11-07 07:13:40,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-07 07:13:40,814 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 191 transitions. [2024-11-07 07:13:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-07 07:13:40,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:13:40,821 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:13:40,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 07:13:40,822 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:13:40,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:13:40,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1121402113, now seen corresponding path program 1 times [2024-11-07 07:13:40,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:13:40,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442153200] [2024-11-07 07:13:40,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:13:40,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:13:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:13:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:13:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:13:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:13:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:13:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:13:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:13:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:13:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:13:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:13:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:13:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:13:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:13:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:13:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:13:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:13:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:13:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:13:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:13:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:13:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:13:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 07:13:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 07:13:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 07:13:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 07:13:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-07 07:13:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-07 07:13:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 07:13:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-07 07:13:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 07:13:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-07 07:13:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 07:13:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-07 07:13:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-07 07:13:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-07 07:13:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-07 07:13:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-07 07:13:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-07 07:13:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-07 07:13:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-07 07:13:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-07 07:13:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-07 07:13:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-07 07:13:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-07 07:13:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-07 07:13:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-07 07:13:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-07 07:13:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-07 07:13:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:13:41,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-07 07:13:41,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:13:41,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442153200] [2024-11-07 07:13:41,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442153200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:13:41,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:13:41,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 07:13:41,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511309505] [2024-11-07 07:13:41,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:13:41,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 07:13:41,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:13:41,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 07:13:41,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 07:13:41,759 INFO L87 Difference]: Start difference. First operand 121 states and 191 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-07 07:13:42,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:13:42,106 INFO L93 Difference]: Finished difference Result 352 states and 563 transitions. [2024-11-07 07:13:42,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 07:13:42,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 291 [2024-11-07 07:13:42,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:13:42,111 INFO L225 Difference]: With dead ends: 352 [2024-11-07 07:13:42,111 INFO L226 Difference]: Without dead ends: 234 [2024-11-07 07:13:42,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 07:13:42,116 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 95 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 07:13:42,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 431 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 07:13:42,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-07 07:13:42,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 212. [2024-11-07 07:13:42,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 113 states have (on average 1.2920353982300885) internal successors, (146), 113 states have internal predecessors, (146), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-07 07:13:42,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 338 transitions. [2024-11-07 07:13:42,166 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 338 transitions. Word has length 291 [2024-11-07 07:13:42,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:13:42,167 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 338 transitions. [2024-11-07 07:13:42,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-07 07:13:42,167 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 338 transitions. [2024-11-07 07:13:42,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-07 07:13:42,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:13:42,171 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:13:42,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 07:13:42,171 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:13:42,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:13:42,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1893701505, now seen corresponding path program 1 times [2024-11-07 07:13:42,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:13:42,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099795564] [2024-11-07 07:13:42,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:13:42,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:13:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat