./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.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_loopvsstraightlinecode_25-while_file-85.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', 'b55245fdfeda07d3cc16ccf7855a16dd0888b0e85bdd23f4fc1ff2e8704085c2'] 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_loopvsstraightlinecode_25-while_file-85.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 b55245fdfeda07d3cc16ccf7855a16dd0888b0e85bdd23f4fc1ff2e8704085c2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 08:36:29,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 08:36:29,423 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 08:36:29,430 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 08:36:29,431 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 08:36:29,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 08:36:29,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 08:36:29,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 08:36:29,463 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 08:36:29,464 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 08:36:29,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 08:36:29,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 08:36:29,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 08:36:29,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 08:36:29,465 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 08:36:29,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 08:36:29,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 08:36:29,465 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 08:36:29,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 08:36:29,466 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 08:36:29,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 08:36:29,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 08:36:29,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 08:36:29,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 08:36:29,466 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 08:36:29,467 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 08:36:29,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 08:36:29,467 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 08:36:29,467 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 08:36:29,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 08:36:29,467 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 08:36:29,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 08:36:29,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:36:29,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 08:36:29,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 08:36:29,468 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 08:36:29,468 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 08:36:29,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 08:36:29,468 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 08:36:29,469 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 08:36:29,469 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 08:36:29,469 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 08:36:29,469 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 -> b55245fdfeda07d3cc16ccf7855a16dd0888b0e85bdd23f4fc1ff2e8704085c2 [2024-11-07 08:36:29,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 08:36:29,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 08:36:29,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 08:36:29,776 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 08:36:29,776 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 08:36:29,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i [2024-11-07 08:36:31,055 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 08:36:31,298 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 08:36:31,299 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i [2024-11-07 08:36:31,305 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/79746abd5/44cb401597a84a61bd2d0362f479101e/FLAG3c1dd8190 [2024-11-07 08:36:31,324 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/79746abd5/44cb401597a84a61bd2d0362f479101e [2024-11-07 08:36:31,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 08:36:31,329 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 08:36:31,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 08:36:31,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 08:36:31,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 08:36:31,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a1e9aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31, skipping insertion in model container [2024-11-07 08:36:31,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,356 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 08:36:31,482 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_loopvsstraightlinecode_25-while_file-85.i[915,928] [2024-11-07 08:36:31,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:36:31,541 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 08:36:31,551 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_loopvsstraightlinecode_25-while_file-85.i[915,928] [2024-11-07 08:36:31,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:36:31,589 INFO L204 MainTranslator]: Completed translation [2024-11-07 08:36:31,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31 WrapperNode [2024-11-07 08:36:31,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 08:36:31,591 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 08:36:31,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 08:36:31,592 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 08:36:31,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,623 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 140 [2024-11-07 08:36:31,624 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 08:36:31,624 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 08:36:31,624 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 08:36:31,624 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 08:36:31,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,635 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,646 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 08:36:31,647 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,651 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 08:36:31,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 08:36:31,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 08:36:31,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 08:36:31,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (1/1) ... [2024-11-07 08:36:31,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:36:31,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 08:36:31,698 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 08:36:31,701 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 08:36:31,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 08:36:31,725 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 08:36:31,725 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 08:36:31,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 08:36:31,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 08:36:31,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 08:36:31,795 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 08:36:31,797 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 08:36:32,000 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-07 08:36:32,000 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 08:36:32,011 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 08:36:32,012 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 08:36:32,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:36:32 BoogieIcfgContainer [2024-11-07 08:36:32,012 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 08:36:32,014 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 08:36:32,014 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 08:36:32,018 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 08:36:32,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:36:31" (1/3) ... [2024-11-07 08:36:32,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2e4a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:36:32, skipping insertion in model container [2024-11-07 08:36:32,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:31" (2/3) ... [2024-11-07 08:36:32,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2e4a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:36:32, skipping insertion in model container [2024-11-07 08:36:32,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:36:32" (3/3) ... [2024-11-07 08:36:32,021 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-85.i [2024-11-07 08:36:32,037 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 08:36:32,038 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 08:36:32,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 08:36:32,109 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;@6d95649a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 08:36:32,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 08:36:32,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 46 states have internal predecessors, (64), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 08:36:32,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-07 08:36:32,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:36:32,122 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:32,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:36:32,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:36:32,127 INFO L85 PathProgramCache]: Analyzing trace with hash -479375215, now seen corresponding path program 1 times [2024-11-07 08:36:32,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:36:32,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104439722] [2024-11-07 08:36:32,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:36:32,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:36:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:36:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:36:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:36:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:36:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:36:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:36:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:36:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:36:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:36:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:36:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:36:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:36:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:36:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:36:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:36:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-07 08:36:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:32,454 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-07 08:36:32,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:36:32,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104439722] [2024-11-07 08:36:32,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104439722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:36:32,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:36:32,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 08:36:32,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700532958] [2024-11-07 08:36:32,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:36:32,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 08:36:32,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:36:32,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 08:36:32,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 08:36:32,481 INFO L87 Difference]: Start difference. First operand has 64 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 46 states have internal predecessors, (64), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 08:36:32,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:36:32,508 INFO L93 Difference]: Finished difference Result 121 states and 202 transitions. [2024-11-07 08:36:32,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 08:36:32,510 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 104 [2024-11-07 08:36:32,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:36:32,518 INFO L225 Difference]: With dead ends: 121 [2024-11-07 08:36:32,518 INFO L226 Difference]: Without dead ends: 60 [2024-11-07 08:36:32,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 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 08:36:32,523 INFO L432 NwaCegarLoop]: 89 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, 89 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 08:36:32,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:36:32,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-07 08:36:32,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-07 08:36:32,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 08:36:32,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 89 transitions. [2024-11-07 08:36:32,560 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 89 transitions. Word has length 104 [2024-11-07 08:36:32,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:36:32,561 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 89 transitions. [2024-11-07 08:36:32,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 08:36:32,562 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 89 transitions. [2024-11-07 08:36:32,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-07 08:36:32,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:36:32,565 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:32,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 08:36:32,565 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:36:32,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:36:32,566 INFO L85 PathProgramCache]: Analyzing trace with hash 156299085, now seen corresponding path program 1 times [2024-11-07 08:36:32,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:36:32,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892179431] [2024-11-07 08:36:32,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:36:32,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:36:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:36:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:36:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:36:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:36:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:36:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:36:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:36:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:36:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:36:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:36:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:36:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:36:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:36:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:36:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:36:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-07 08:36:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:34,124 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-07 08:36:34,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:36:34,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892179431] [2024-11-07 08:36:34,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892179431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:36:34,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:36:34,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 08:36:34,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939645253] [2024-11-07 08:36:34,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:36:34,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 08:36:34,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:36:34,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 08:36:34,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 08:36:34,130 INFO L87 Difference]: Start difference. First operand 60 states and 89 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 08:36:34,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:36:34,454 INFO L93 Difference]: Finished difference Result 164 states and 238 transitions. [2024-11-07 08:36:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 08:36:34,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2024-11-07 08:36:34,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:36:34,457 INFO L225 Difference]: With dead ends: 164 [2024-11-07 08:36:34,457 INFO L226 Difference]: Without dead ends: 107 [2024-11-07 08:36:34,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-07 08:36:34,458 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 54 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 08:36:34,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 288 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 08:36:34,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-07 08:36:34,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 94. [2024-11-07 08:36:34,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 68 states have internal predecessors, (86), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 08:36:34,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 134 transitions. [2024-11-07 08:36:34,476 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 134 transitions. Word has length 104 [2024-11-07 08:36:34,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:36:34,476 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 134 transitions. [2024-11-07 08:36:34,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 08:36:34,477 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 134 transitions. [2024-11-07 08:36:34,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-07 08:36:34,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:36:34,478 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:34,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 08:36:34,478 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:36:34,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:36:34,479 INFO L85 PathProgramCache]: Analyzing trace with hash -599399218, now seen corresponding path program 1 times [2024-11-07 08:36:34,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:36:34,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189427720] [2024-11-07 08:36:34,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:36:34,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:36:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:36:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:36:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:36:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:36:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:36:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:36:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:36:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:36:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:36:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:36:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:36:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:36:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:36:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:36:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:36:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-07 08:36:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,370 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-07 08:36:35,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:36:35,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189427720] [2024-11-07 08:36:35,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189427720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:36:35,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:36:35,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 08:36:35,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312048528] [2024-11-07 08:36:35,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:36:35,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 08:36:35,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:36:35,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 08:36:35,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 08:36:35,372 INFO L87 Difference]: Start difference. First operand 94 states and 134 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 08:36:35,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:36:35,749 INFO L93 Difference]: Finished difference Result 226 states and 307 transitions. [2024-11-07 08:36:35,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 08:36:35,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2024-11-07 08:36:35,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:36:35,752 INFO L225 Difference]: With dead ends: 226 [2024-11-07 08:36:35,752 INFO L226 Difference]: Without dead ends: 135 [2024-11-07 08:36:35,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-07 08:36:35,753 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 84 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 08:36:35,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 322 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 08:36:35,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-07 08:36:35,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 94. [2024-11-07 08:36:35,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 68 states have internal predecessors, (86), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 08:36:35,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 134 transitions. [2024-11-07 08:36:35,769 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 134 transitions. Word has length 105 [2024-11-07 08:36:35,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:36:35,771 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 134 transitions. [2024-11-07 08:36:35,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 08:36:35,771 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 134 transitions. [2024-11-07 08:36:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-07 08:36:35,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:36:35,773 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:35,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 08:36:35,774 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:36:35,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:36:35,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1187698262, now seen corresponding path program 1 times [2024-11-07 08:36:35,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:36:35,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520130502] [2024-11-07 08:36:35,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:36:35,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:36:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:36:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:36:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:36:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:36:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:36:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:36:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:36:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:36:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:36:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:36:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:36:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:36:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:36:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:36:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:36:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-07 08:36:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:35,914 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-07 08:36:35,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:36:35,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520130502] [2024-11-07 08:36:35,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520130502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:36:35,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:36:35,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 08:36:35,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398310682] [2024-11-07 08:36:35,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:36:35,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 08:36:35,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:36:35,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 08:36:35,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 08:36:35,916 INFO L87 Difference]: Start difference. First operand 94 states and 134 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 08:36:35,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:36:35,955 INFO L93 Difference]: Finished difference Result 192 states and 270 transitions. [2024-11-07 08:36:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 08:36:35,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2024-11-07 08:36:35,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:36:35,957 INFO L225 Difference]: With dead ends: 192 [2024-11-07 08:36:35,957 INFO L226 Difference]: Without dead ends: 101 [2024-11-07 08:36:35,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 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 08:36:35,958 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 56 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 08:36:35,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 182 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:36:35,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-07 08:36:35,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 76. [2024-11-07 08:36:35,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 08:36:35,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2024-11-07 08:36:35,979 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 105 [2024-11-07 08:36:35,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:36:35,979 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2024-11-07 08:36:35,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 08:36:35,979 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2024-11-07 08:36:35,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-07 08:36:35,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:36:35,981 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:35,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 08:36:35,981 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:36:35,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:36:35,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1222417992, now seen corresponding path program 1 times [2024-11-07 08:36:35,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:36:35,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914633772] [2024-11-07 08:36:35,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:36:35,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:36:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 08:36:36,031 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 08:36:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 08:36:36,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 08:36:36,126 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 08:36:36,127 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-07 08:36:36,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 08:36:36,131 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-07 08:36:36,217 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 08:36:36,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:36:36 BoogieIcfgContainer [2024-11-07 08:36:36,222 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 08:36:36,222 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 08:36:36,223 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 08:36:36,223 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 08:36:36,223 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:36:32" (3/4) ... [2024-11-07 08:36:36,225 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 08:36:36,226 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 08:36:36,227 INFO L158 Benchmark]: Toolchain (without parser) took 4898.28ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 92.4MB in the beginning and 86.1MB in the end (delta: 6.3MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2024-11-07 08:36:36,228 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 08:36:36,228 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.49ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 79.8MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 08:36:36,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.45ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 08:36:36,230 INFO L158 Benchmark]: Boogie Preprocessor took 33.74ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 76.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 08:36:36,231 INFO L158 Benchmark]: RCFGBuilder took 353.44ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 60.3MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 08:36:36,231 INFO L158 Benchmark]: TraceAbstraction took 4207.81ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 59.6MB in the beginning and 87.9MB in the end (delta: -28.3MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2024-11-07 08:36:36,231 INFO L158 Benchmark]: Witness Printer took 3.68ms. Allocated memory is still 167.8MB. Free memory was 87.9MB in the beginning and 86.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 08:36:36,233 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.49ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 79.8MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.45ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.74ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 76.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 353.44ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 60.3MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4207.81ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 59.6MB in the beginning and 87.9MB in the end (delta: -28.3MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * Witness Printer took 3.68ms. Allocated memory is still 167.8MB. Free memory was 87.9MB in the beginning and 86.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 100. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 16; [L23] unsigned char var_1_2 = 0; [L24] signed long int var_1_3 = -64; [L25] signed long int var_1_4 = -4; [L26] unsigned char var_1_5 = 1; [L27] unsigned char var_1_6 = 0; [L28] signed char var_1_7 = 32; [L29] signed char var_1_8 = -8; [L30] signed char var_1_9 = 10; [L31] double var_1_10 = 1.6; [L32] double var_1_11 = 127.25; [L33] double var_1_12 = 2.5; VAL [isInitial=0, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=0, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] FCALL updateLastVariables() [L108] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L72] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L73] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L73] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L74] var_1_3 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_3 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L75] RET assume_abort_if_not(var_1_3 >= -1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L76] CALL assume_abort_if_not(var_1_3 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L76] RET assume_abort_if_not(var_1_3 <= 1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L77] var_1_4 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_4 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L78] RET assume_abort_if_not(var_1_4 >= -1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L79] CALL assume_abort_if_not(var_1_4 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L79] RET assume_abort_if_not(var_1_4 <= 1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L80] var_1_5 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L81] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L82] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L82] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L83] var_1_6 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_7=32, var_1_8=-8, var_1_9=10] [L84] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_7=32, var_1_8=-8, var_1_9=10] [L85] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L85] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L86] var_1_8 = __VERIFIER_nondet_char() [L87] CALL assume_abort_if_not(var_1_8 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=10] [L87] RET assume_abort_if_not(var_1_8 >= -127) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=10] [L88] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=10] [L88] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=10] [L89] var_1_9 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_9 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L90] RET assume_abort_if_not(var_1_9 >= -127) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L91] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L91] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L92] var_1_11 = __VERIFIER_nondet_double() [L93] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L93] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8/5, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L94] var_1_12 = __VERIFIER_nondet_double() [L95] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L95] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L108] RET updateVariables() [L109] CALL step() [L37] signed long int stepLocal_0 = var_1_3; VAL [isInitial=1, stepLocal_0=-1073741822, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L38] COND FALSE !(\read(var_1_6)) VAL [isInitial=1, stepLocal_0=-1073741822, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L43] COND TRUE \read(var_1_2) [L44] var_1_1 = (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))) VAL [isInitial=1, stepLocal_0=-1073741822, var_1_10=8/5, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L56] unsigned char stepLocal_2 = var_1_5; [L57] signed char stepLocal_1 = var_1_9; VAL [isInitial=1, stepLocal_0=-1073741822, stepLocal_1=-127, stepLocal_2=-255, var_1_10=8/5, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L58] COND TRUE ! var_1_6 [L59] var_1_10 = ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))) VAL [isInitial=1, stepLocal_0=-1073741822, stepLocal_1=-127, stepLocal_2=-255, var_1_10=132, var_1_11=132, var_1_12=132, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) VAL [isInitial=1, var_1_10=132, var_1_11=132, var_1_12=132, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L100] EXPR (! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1) VAL [isInitial=1, var_1_10=132, var_1_11=132, var_1_12=132, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L100] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) VAL [isInitial=1, var_1_10=132, var_1_11=132, var_1_12=132, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L100-L101] return ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=132, var_1_11=132, var_1_12=132, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] [L19] reach_error() VAL [isInitial=1, var_1_10=132, var_1_11=132, var_1_12=132, var_1_1=-16, var_1_2=1, var_1_3=-1073741822, var_1_4=-1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-126, var_1_9=-127] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 194 mSDsluCounter, 881 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 472 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 197 IncrementalHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 409 mSDtfsCounter, 197 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 79 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 524 NumberOfCodeBlocks, 524 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 414 ConstructedInterpolants, 0 QuantifiedInterpolants, 1496 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 1920/1920 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-07 08:36:36,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_loopvsstraightlinecode_25-while_file-85.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 b55245fdfeda07d3cc16ccf7855a16dd0888b0e85bdd23f4fc1ff2e8704085c2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 08:36:38,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 08:36:38,574 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-07 08:36:38,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 08:36:38,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 08:36:38,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 08:36:38,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 08:36:38,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 08:36:38,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 08:36:38,616 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 08:36:38,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 08:36:38,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 08:36:38,617 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 08:36:38,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 08:36:38,617 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 08:36:38,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 08:36:38,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 08:36:38,618 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 08:36:38,618 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 08:36:38,618 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 08:36:38,618 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 08:36:38,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 08:36:38,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 08:36:38,619 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 08:36:38,619 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 08:36:38,619 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 08:36:38,619 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 08:36:38,619 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 08:36:38,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 08:36:38,619 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 08:36:38,619 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 08:36:38,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 08:36:38,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 08:36:38,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 08:36:38,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:36:38,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 08:36:38,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 08:36:38,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 08:36:38,621 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 08:36:38,621 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 08:36:38,621 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 08:36:38,621 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 08:36:38,621 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 08:36:38,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 08:36:38,622 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 -> b55245fdfeda07d3cc16ccf7855a16dd0888b0e85bdd23f4fc1ff2e8704085c2 [2024-11-07 08:36:38,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 08:36:38,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 08:36:38,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 08:36:38,935 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 08:36:38,938 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 08:36:38,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i [2024-11-07 08:36:40,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 08:36:40,528 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 08:36:40,528 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i [2024-11-07 08:36:40,535 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2f5ec5ef6/5c33ee49be894677a453ebcd231c1335/FLAG7734b7c51 [2024-11-07 08:36:40,875 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2f5ec5ef6/5c33ee49be894677a453ebcd231c1335 [2024-11-07 08:36:40,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 08:36:40,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 08:36:40,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 08:36:40,880 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 08:36:40,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 08:36:40,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:36:40" (1/1) ... [2024-11-07 08:36:40,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fb9f930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:40, skipping insertion in model container [2024-11-07 08:36:40,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:36:40" (1/1) ... [2024-11-07 08:36:40,905 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 08:36:41,016 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_loopvsstraightlinecode_25-while_file-85.i[915,928] [2024-11-07 08:36:41,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:36:41,078 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 08:36:41,087 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i[915,928] [2024-11-07 08:36:41,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:36:41,123 INFO L204 MainTranslator]: Completed translation [2024-11-07 08:36:41,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41 WrapperNode [2024-11-07 08:36:41,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 08:36:41,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 08:36:41,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 08:36:41,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 08:36:41,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (1/1) ... [2024-11-07 08:36:41,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (1/1) ... [2024-11-07 08:36:41,159 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2024-11-07 08:36:41,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 08:36:41,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 08:36:41,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 08:36:41,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 08:36:41,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (1/1) ... [2024-11-07 08:36:41,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (1/1) ... [2024-11-07 08:36:41,171 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (1/1) ... [2024-11-07 08:36:41,179 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 08:36:41,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (1/1) ... [2024-11-07 08:36:41,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (1/1) ... [2024-11-07 08:36:41,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (1/1) ... [2024-11-07 08:36:41,188 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (1/1) ... [2024-11-07 08:36:41,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (1/1) ... [2024-11-07 08:36:41,190 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (1/1) ... [2024-11-07 08:36:41,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 08:36:41,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 08:36:41,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 08:36:41,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 08:36:41,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (1/1) ... [2024-11-07 08:36:41,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:36:41,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 08:36:41,227 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 08:36:41,230 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 08:36:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 08:36:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-07 08:36:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 08:36:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 08:36:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 08:36:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 08:36:41,330 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 08:36:41,331 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 08:36:41,519 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-07 08:36:41,520 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 08:36:41,529 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 08:36:41,529 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 08:36:41,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:36:41 BoogieIcfgContainer [2024-11-07 08:36:41,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 08:36:41,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 08:36:41,533 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 08:36:41,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 08:36:41,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:36:40" (1/3) ... [2024-11-07 08:36:41,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308d8af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:36:41, skipping insertion in model container [2024-11-07 08:36:41,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:36:41" (2/3) ... [2024-11-07 08:36:41,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308d8af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:36:41, skipping insertion in model container [2024-11-07 08:36:41,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:36:41" (3/3) ... [2024-11-07 08:36:41,539 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-85.i [2024-11-07 08:36:41,551 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 08:36:41,554 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 08:36:41,616 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 08:36:41,633 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;@46038902, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 08:36:41,634 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 08:36:41,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 08:36:41,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 08:36:41,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:36:41,653 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:41,653 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:36:41,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:36:41,659 INFO L85 PathProgramCache]: Analyzing trace with hash 759488486, now seen corresponding path program 1 times [2024-11-07 08:36:41,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 08:36:41,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881869386] [2024-11-07 08:36:41,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:36:41,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 08:36:41,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 08:36:41,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 08:36:41,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-07 08:36:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:41,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-07 08:36:41,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 08:36:41,904 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-11-07 08:36:41,905 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 08:36:41,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 08:36:41,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881869386] [2024-11-07 08:36:41,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881869386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:36:41,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:36:41,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 08:36:41,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517402208] [2024-11-07 08:36:41,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:36:41,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 08:36:41,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 08:36:41,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 08:36:41,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 08:36:41,932 INFO L87 Difference]: Start difference. First operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 08:36:41,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:36:41,959 INFO L93 Difference]: Finished difference Result 99 states and 168 transitions. [2024-11-07 08:36:41,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 08:36:41,961 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2024-11-07 08:36:41,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:36:41,969 INFO L225 Difference]: With dead ends: 99 [2024-11-07 08:36:41,969 INFO L226 Difference]: Without dead ends: 49 [2024-11-07 08:36:41,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 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 08:36:41,976 INFO L432 NwaCegarLoop]: 72 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, 72 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 08:36:41,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:36:41,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-07 08:36:42,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-07 08:36:42,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 08:36:42,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2024-11-07 08:36:42,028 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 102 [2024-11-07 08:36:42,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:36:42,028 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2024-11-07 08:36:42,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 08:36:42,029 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2024-11-07 08:36:42,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 08:36:42,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:36:42,031 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:42,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-07 08:36:42,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 08:36:42,232 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:36:42,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:36:42,233 INFO L85 PathProgramCache]: Analyzing trace with hash 532217250, now seen corresponding path program 1 times [2024-11-07 08:36:42,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 08:36:42,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914516409] [2024-11-07 08:36:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:36:42,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 08:36:42,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 08:36:42,236 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 08:36:42,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-07 08:36:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:36:42,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 08:36:42,368 INFO L278 TraceCheckSpWp]: Computing forward predicates...