./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_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_codestructure_normal_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', '8e6a4e811ea035c2d62f9643480185d2581ede57005addf38935f5c40588f0bb'] 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_normal_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 8e6a4e811ea035c2d62f9643480185d2581ede57005addf38935f5c40588f0bb --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 04:07:51,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 04:07:51,490 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 04:07:51,497 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 04:07:51,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 04:07:51,528 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 04:07:51,529 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 04:07:51,529 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 04:07:51,530 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 04:07:51,530 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 04:07:51,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 04:07:51,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 04:07:51,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 04:07:51,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 04:07:51,531 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 04:07:51,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 04:07:51,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 04:07:51,532 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 04:07:51,533 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 04:07:51,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 04:07:51,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 04:07:51,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 04:07:51,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 04:07:51,533 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 04:07:51,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 04:07:51,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 04:07:51,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 04:07:51,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 04:07:51,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 04:07:51,533 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 -> 8e6a4e811ea035c2d62f9643480185d2581ede57005addf38935f5c40588f0bb [2024-11-07 04:07:51,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 04:07:51,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 04:07:51,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 04:07:51,817 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 04:07:51,817 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 04:07:51,819 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-31.i [2024-11-07 04:07:53,073 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 04:07:53,314 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 04:07:53,315 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-31.i [2024-11-07 04:07:53,325 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3f9957d86/f88531a82d9f4a9d8ed45a5c86fa2c26/FLAGd0af5db2c [2024-11-07 04:07:53,343 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3f9957d86/f88531a82d9f4a9d8ed45a5c86fa2c26 [2024-11-07 04:07:53,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 04:07:53,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 04:07:53,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 04:07:53,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 04:07:53,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 04:07:53,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7914169a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53, skipping insertion in model container [2024-11-07 04:07:53,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,383 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 04:07:53,518 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_normal_file-31.i[913,926] [2024-11-07 04:07:53,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 04:07:53,608 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 04:07:53,617 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-31.i[913,926] [2024-11-07 04:07:53,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 04:07:53,677 INFO L204 MainTranslator]: Completed translation [2024-11-07 04:07:53,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53 WrapperNode [2024-11-07 04:07:53,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 04:07:53,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 04:07:53,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 04:07:53,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 04:07:53,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,739 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 148 [2024-11-07 04:07:53,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 04:07:53,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 04:07:53,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 04:07:53,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 04:07:53,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,754 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,787 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 04:07:53,787 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,787 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,811 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 04:07:53,825 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 04:07:53,826 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 04:07:53,826 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 04:07:53,828 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (1/1) ... [2024-11-07 04:07:53,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 04:07:53,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 04:07:53,866 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 04:07:53,869 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 04:07:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 04:07:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 04:07:53,896 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 04:07:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 04:07:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 04:07:53,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 04:07:53,978 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 04:07:53,979 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 04:07:54,362 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-07 04:07:54,362 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 04:07:54,374 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 04:07:54,376 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 04:07:54,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:07:54 BoogieIcfgContainer [2024-11-07 04:07:54,377 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 04:07:54,379 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 04:07:54,379 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 04:07:54,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 04:07:54,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:07:53" (1/3) ... [2024-11-07 04:07:54,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5816cfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:07:54, skipping insertion in model container [2024-11-07 04:07:54,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:07:53" (2/3) ... [2024-11-07 04:07:54,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5816cfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:07:54, skipping insertion in model container [2024-11-07 04:07:54,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:07:54" (3/3) ... [2024-11-07 04:07:54,386 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-31.i [2024-11-07 04:07:54,424 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 04:07:54,425 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 04:07:54,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 04:07:54,500 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;@3eefd094, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 04:07:54,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 04:07:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 40 states have (on average 1.35) internal successors, (54), 41 states have internal predecessors, (54), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 04:07:54,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-07 04:07:54,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:07:54,520 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:54,521 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:07:54,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:07:54,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1111313614, now seen corresponding path program 1 times [2024-11-07 04:07:54,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:07:54,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286171790] [2024-11-07 04:07:54,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:07:54,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:07:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:07:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:07:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:07:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:07:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:07:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:07:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:07:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:07:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:07:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:07:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:07:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:07:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:07:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:07:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 04:07:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:07:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 04:07:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:07:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 04:07:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:07:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 04:07:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:07:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 04:07:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:54,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:07:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 04:07:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:07:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 04:07:55,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:07:55,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286171790] [2024-11-07 04:07:55,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286171790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:07:55,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:07:55,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 04:07:55,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4158035] [2024-11-07 04:07:55,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:07:55,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 04:07:55,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:07:55,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 04:07:55,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 04:07:55,063 INFO L87 Difference]: Start difference. First operand has 69 states, 40 states have (on average 1.35) internal successors, (54), 41 states have internal predecessors, (54), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-07 04:07:55,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:07:55,100 INFO L93 Difference]: Finished difference Result 131 states and 232 transitions. [2024-11-07 04:07:55,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 04:07:55,103 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 159 [2024-11-07 04:07:55,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:07:55,110 INFO L225 Difference]: With dead ends: 131 [2024-11-07 04:07:55,110 INFO L226 Difference]: Without dead ends: 65 [2024-11-07 04:07:55,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 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 04:07:55,120 INFO L432 NwaCegarLoop]: 99 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, 99 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 04:07:55,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 04:07:55,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-07 04:07:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-07 04:07:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 37 states have internal predecessors, (47), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 04:07:55,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 99 transitions. [2024-11-07 04:07:55,174 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 99 transitions. Word has length 159 [2024-11-07 04:07:55,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:07:55,175 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 99 transitions. [2024-11-07 04:07:55,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-07 04:07:55,175 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 99 transitions. [2024-11-07 04:07:55,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-07 04:07:55,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:07:55,179 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:55,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 04:07:55,179 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:07:55,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:07:55,180 INFO L85 PathProgramCache]: Analyzing trace with hash 24700018, now seen corresponding path program 1 times [2024-11-07 04:07:55,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:07:55,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158920579] [2024-11-07 04:07:55,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:07:55,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:07:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:07:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:07:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:07:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:07:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:07:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:07:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:07:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:07:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:07:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:07:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:07:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:07:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:07:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:07:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 04:07:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:07:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 04:07:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:07:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 04:07:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:07:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 04:07:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:07:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 04:07:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:07:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 04:07:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:07:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:07:55,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 04:07:55,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:07:55,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158920579] [2024-11-07 04:07:55,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158920579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:07:55,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:07:55,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 04:07:55,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500996290] [2024-11-07 04:07:55,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:07:55,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 04:07:55,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:07:55,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 04:07:55,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 04:07:55,636 INFO L87 Difference]: Start difference. First operand 65 states and 99 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 04:07:55,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:07:55,699 INFO L93 Difference]: Finished difference Result 144 states and 219 transitions. [2024-11-07 04:07:55,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 04:07:55,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 159 [2024-11-07 04:07:55,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:07:55,703 INFO L225 Difference]: With dead ends: 144 [2024-11-07 04:07:55,703 INFO L226 Difference]: Without dead ends: 82 [2024-11-07 04:07:55,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 04:07:55,707 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 20 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 04:07:55,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 196 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 04:07:55,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-07 04:07:55,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 71. [2024-11-07 04:07:55,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 04:07:55,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 108 transitions. [2024-11-07 04:07:55,722 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 108 transitions. Word has length 159 [2024-11-07 04:07:55,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:07:55,726 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 108 transitions. [2024-11-07 04:07:55,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 04:07:55,726 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 108 transitions. [2024-11-07 04:07:55,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-07 04:07:55,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:07:55,729 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:55,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 04:07:55,729 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:07:55,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:07:55,730 INFO L85 PathProgramCache]: Analyzing trace with hash 725764596, now seen corresponding path program 1 times [2024-11-07 04:07:55,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:07:55,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10798687] [2024-11-07 04:07:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:07:55,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:07:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat