./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_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_codestructure_dependencies_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', '68087ce39f875d0c4fcddd2229459f24d441251a368024f44145e4f051f2f74c'] 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_codestructure_dependencies_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 68087ce39f875d0c4fcddd2229459f24d441251a368024f44145e4f051f2f74c --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 03:57:51,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 03:57:51,958 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 03:57:51,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 03:57:51,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 03:57:51,994 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 03:57:51,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 03:57:51,995 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 03:57:51,996 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 03:57:51,996 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 03:57:51,996 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 03:57:51,996 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 03:57:51,997 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 03:57:51,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 03:57:51,997 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 03:57:51,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 03:57:51,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 03:57:51,998 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 03:57:51,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 03:57:51,998 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 03:57:51,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 03:57:51,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 03:57:51,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 03:57:51,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 03:57:51,999 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 03:57:51,999 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 03:57:51,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 03:57:51,999 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 03:57:51,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 03:57:52,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 03:57:52,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 03:57:52,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 03:57:52,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:57:52,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 03:57:52,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 03:57:52,001 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 03:57:52,001 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 03:57:52,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 03:57:52,001 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 03:57:52,001 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 03:57:52,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 03:57:52,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 03:57:52,001 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 -> 68087ce39f875d0c4fcddd2229459f24d441251a368024f44145e4f051f2f74c [2024-11-07 03:57:52,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 03:57:52,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 03:57:52,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 03:57:52,280 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 03:57:52,280 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 03:57:52,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-52.i [2024-11-07 03:57:53,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 03:57:53,788 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 03:57:53,789 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-52.i [2024-11-07 03:57:53,796 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/987aff04d/30b7d1c44fe44c4ba537a67d58c4d8ee/FLAG8d30df303 [2024-11-07 03:57:53,817 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/987aff04d/30b7d1c44fe44c4ba537a67d58c4d8ee [2024-11-07 03:57:53,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 03:57:53,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 03:57:53,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 03:57:53,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 03:57:53,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 03:57:53,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:57:53" (1/1) ... [2024-11-07 03:57:53,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66207c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:53, skipping insertion in model container [2024-11-07 03:57:53,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:57:53" (1/1) ... [2024-11-07 03:57:53,849 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 03:57:53,974 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_codestructure_dependencies_file-52.i[919,932] [2024-11-07 03:57:54,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:57:54,038 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 03:57:54,046 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_codestructure_dependencies_file-52.i[919,932] [2024-11-07 03:57:54,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:57:54,086 INFO L204 MainTranslator]: Completed translation [2024-11-07 03:57:54,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54 WrapperNode [2024-11-07 03:57:54,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 03:57:54,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 03:57:54,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 03:57:54,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 03:57:54,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (1/1) ... [2024-11-07 03:57:54,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (1/1) ... [2024-11-07 03:57:54,151 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2024-11-07 03:57:54,155 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 03:57:54,156 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 03:57:54,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 03:57:54,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 03:57:54,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (1/1) ... [2024-11-07 03:57:54,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (1/1) ... [2024-11-07 03:57:54,172 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (1/1) ... [2024-11-07 03:57:54,197 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 03:57:54,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (1/1) ... [2024-11-07 03:57:54,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (1/1) ... [2024-11-07 03:57:54,210 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (1/1) ... [2024-11-07 03:57:54,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (1/1) ... [2024-11-07 03:57:54,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (1/1) ... [2024-11-07 03:57:54,224 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (1/1) ... [2024-11-07 03:57:54,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 03:57:54,231 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 03:57:54,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 03:57:54,231 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 03:57:54,232 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (1/1) ... [2024-11-07 03:57:54,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:57:54,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:57:54,270 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 03:57:54,274 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 03:57:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 03:57:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 03:57:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 03:57:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 03:57:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 03:57:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 03:57:54,380 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 03:57:54,382 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 03:57:54,744 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-07 03:57:54,744 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 03:57:54,757 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 03:57:54,758 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 03:57:54,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:57:54 BoogieIcfgContainer [2024-11-07 03:57:54,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 03:57:54,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 03:57:54,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 03:57:54,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 03:57:54,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:57:53" (1/3) ... [2024-11-07 03:57:54,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9c6ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:57:54, skipping insertion in model container [2024-11-07 03:57:54,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:54" (2/3) ... [2024-11-07 03:57:54,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9c6ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:57:54, skipping insertion in model container [2024-11-07 03:57:54,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:57:54" (3/3) ... [2024-11-07 03:57:54,769 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-52.i [2024-11-07 03:57:54,810 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 03:57:54,810 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 03:57:54,876 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 03:57:54,888 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;@45c52772, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 03:57:54,889 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 03:57:54,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 35 states have internal predecessors, (49), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-07 03:57:54,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-07 03:57:54,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:57:54,905 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:54,905 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:57:54,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:57:54,911 INFO L85 PathProgramCache]: Analyzing trace with hash 952904109, now seen corresponding path program 1 times [2024-11-07 03:57:54,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:57:54,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127984251] [2024-11-07 03:57:54,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:57:54,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:57:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 03:57:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 03:57:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 03:57:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 03:57:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 03:57:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 03:57:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 03:57:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 03:57:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 03:57:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 03:57:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 03:57:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 03:57:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:57:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-07 03:57:55,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:57:55,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127984251] [2024-11-07 03:57:55,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127984251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:57:55,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:57:55,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 03:57:55,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242044133] [2024-11-07 03:57:55,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:57:55,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 03:57:55,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:57:55,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 03:57:55,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 03:57:55,262 INFO L87 Difference]: Start difference. First operand has 49 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 35 states have internal predecessors, (49), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-07 03:57:55,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:57:55,278 INFO L93 Difference]: Finished difference Result 91 states and 152 transitions. [2024-11-07 03:57:55,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 03:57:55,280 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2024-11-07 03:57:55,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:57:55,289 INFO L225 Difference]: With dead ends: 91 [2024-11-07 03:57:55,289 INFO L226 Difference]: Without dead ends: 45 [2024-11-07 03:57:55,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 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 03:57:55,294 INFO L432 NwaCegarLoop]: 66 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, 66 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 03:57:55,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:57:55,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-07 03:57:55,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-07 03:57:55,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-07 03:57:55,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2024-11-07 03:57:55,339 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 66 transitions. Word has length 83 [2024-11-07 03:57:55,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:57:55,340 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 66 transitions. [2024-11-07 03:57:55,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-07 03:57:55,340 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2024-11-07 03:57:55,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-07 03:57:55,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:57:55,345 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:55,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 03:57:55,346 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:57:55,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:57:55,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1252196781, now seen corresponding path program 1 times [2024-11-07 03:57:55,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:57:55,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731264989] [2024-11-07 03:57:55,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:57:55,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:57:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 03:58:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 03:58:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 03:58:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 03:58:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 03:58:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 03:58:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 03:58:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 03:58:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 03:58:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 03:58:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 03:58:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 03:58:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:04,511 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-07 03:58:04,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:58:04,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731264989] [2024-11-07 03:58:04,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731264989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:58:04,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:58:04,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-07 03:58:04,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404227583] [2024-11-07 03:58:04,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:58:04,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 03:58:04,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:58:04,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 03:58:04,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-07 03:58:04,517 INFO L87 Difference]: Start difference. First operand 45 states and 66 transitions. Second operand has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-07 03:58:05,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:58:05,262 INFO L93 Difference]: Finished difference Result 161 states and 238 transitions. [2024-11-07 03:58:05,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:58:05,263 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 83 [2024-11-07 03:58:05,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:58:05,266 INFO L225 Difference]: With dead ends: 161 [2024-11-07 03:58:05,266 INFO L226 Difference]: Without dead ends: 119 [2024-11-07 03:58:05,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:58:05,267 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 163 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 03:58:05,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 408 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 03:58:05,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-07 03:58:05,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 83. [2024-11-07 03:58:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 56 states have internal predecessors, (76), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 03:58:05,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 124 transitions. [2024-11-07 03:58:05,290 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 124 transitions. Word has length 83 [2024-11-07 03:58:05,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:58:05,291 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 124 transitions. [2024-11-07 03:58:05,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-07 03:58:05,291 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 124 transitions. [2024-11-07 03:58:05,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-07 03:58:05,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:58:05,296 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:05,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 03:58:05,296 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:58:05,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:58:05,297 INFO L85 PathProgramCache]: Analyzing trace with hash 104071341, now seen corresponding path program 1 times [2024-11-07 03:58:05,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:58:05,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621738806] [2024-11-07 03:58:05,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:58:05,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:58:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 03:58:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 03:58:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 03:58:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 03:58:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 03:58:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 03:58:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 03:58:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 03:58:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 03:58:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 03:58:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 03:58:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 03:58:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-07 03:58:10,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:58:10,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621738806] [2024-11-07 03:58:10,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621738806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:58:10,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:58:10,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-07 03:58:10,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893662660] [2024-11-07 03:58:10,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:58:10,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 03:58:10,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:58:10,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 03:58:10,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-07 03:58:10,834 INFO L87 Difference]: Start difference. First operand 83 states and 124 transitions. Second operand has 15 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 states have internal predecessors, (26), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-07 03:58:12,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:58:12,187 INFO L93 Difference]: Finished difference Result 119 states and 171 transitions. [2024-11-07 03:58:12,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 03:58:12,188 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 states have internal predecessors, (26), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 83 [2024-11-07 03:58:12,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:58:12,190 INFO L225 Difference]: With dead ends: 119 [2024-11-07 03:58:12,190 INFO L226 Difference]: Without dead ends: 117 [2024-11-07 03:58:12,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2024-11-07 03:58:12,191 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 199 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 03:58:12,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 378 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 03:58:12,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-07 03:58:12,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 88. [2024-11-07 03:58:12,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 61 states have internal predecessors, (82), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 03:58:12,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 130 transitions. [2024-11-07 03:58:12,214 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 130 transitions. Word has length 83 [2024-11-07 03:58:12,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:58:12,215 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 130 transitions. [2024-11-07 03:58:12,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 states have internal predecessors, (26), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-07 03:58:12,215 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 130 transitions. [2024-11-07 03:58:12,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-07 03:58:12,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:58:12,218 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:12,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 03:58:12,218 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:58:12,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:58:12,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1510362219, now seen corresponding path program 1 times [2024-11-07 03:58:12,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:58:12,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738419721] [2024-11-07 03:58:12,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:58:12,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:58:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 03:58:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 03:58:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 03:58:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 03:58:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 03:58:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 03:58:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 03:58:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 03:58:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 03:58:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 03:58:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 03:58:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 03:58:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:12,328 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-07 03:58:12,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:58:12,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738419721] [2024-11-07 03:58:12,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738419721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:58:12,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:58:12,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:58:12,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927859201] [2024-11-07 03:58:12,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:58:12,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:58:12,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:58:12,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:58:12,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:58:12,333 INFO L87 Difference]: Start difference. First operand 88 states and 130 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-07 03:58:12,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:58:12,403 INFO L93 Difference]: Finished difference Result 130 states and 193 transitions. [2024-11-07 03:58:12,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 03:58:12,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2024-11-07 03:58:12,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:58:12,408 INFO L225 Difference]: With dead ends: 130 [2024-11-07 03:58:12,408 INFO L226 Difference]: Without dead ends: 88 [2024-11-07 03:58:12,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 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 03:58:12,409 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:58:12,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 57 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:58:12,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-07 03:58:12,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-07 03:58:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 61 states have internal predecessors, (80), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 03:58:12,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 128 transitions. [2024-11-07 03:58:12,428 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 128 transitions. Word has length 83 [2024-11-07 03:58:12,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:58:12,428 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 128 transitions. [2024-11-07 03:58:12,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-07 03:58:12,428 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 128 transitions. [2024-11-07 03:58:12,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 03:58:12,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:58:12,429 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:12,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 03:58:12,429 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:58:12,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:58:12,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1428948829, now seen corresponding path program 1 times [2024-11-07 03:58:12,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:58:12,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10640678] [2024-11-07 03:58:12,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:58:12,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:58:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat