./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.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-47.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', 'adf480f71c98f97b1e3553d7ccd07596f803ed516785c8ed007d232ae0455bf0'] 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-47.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 adf480f71c98f97b1e3553d7ccd07596f803ed516785c8ed007d232ae0455bf0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 08:31:37,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 08:31:37,709 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 08:31:37,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 08:31:37,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 08:31:37,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 08:31:37,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 08:31:37,747 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 08:31:37,747 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 08:31:37,748 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 08:31:37,748 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 08:31:37,748 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 08:31:37,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 08:31:37,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 08:31:37,750 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 08:31:37,750 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 08:31:37,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 08:31:37,750 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 08:31:37,750 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 08:31:37,750 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 08:31:37,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 08:31:37,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 08:31:37,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 08:31:37,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 08:31:37,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 08:31:37,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 08:31:37,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 08:31:37,751 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 08:31:37,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 08:31:37,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 08:31:37,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 08:31:37,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 08:31:37,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:31:37,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 08:31:37,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 08:31:37,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 08:31:37,753 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 08:31:37,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 08:31:37,753 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 08:31:37,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 08:31:37,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 08:31:37,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 08:31:37,753 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 -> adf480f71c98f97b1e3553d7ccd07596f803ed516785c8ed007d232ae0455bf0 [2024-11-07 08:31:38,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 08:31:38,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 08:31:38,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 08:31:38,082 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 08:31:38,082 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 08:31:38,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i [2024-11-07 08:31:39,351 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 08:31:39,618 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 08:31:39,621 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i [2024-11-07 08:31:39,629 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d2d9ef74/05dee96da1374e9abfd7ca107554bb7c/FLAG937b7d587 [2024-11-07 08:31:39,914 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d2d9ef74/05dee96da1374e9abfd7ca107554bb7c [2024-11-07 08:31:39,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 08:31:39,917 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 08:31:39,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 08:31:39,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 08:31:39,921 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 08:31:39,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:31:39" (1/1) ... [2024-11-07 08:31:39,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70317763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:39, skipping insertion in model container [2024-11-07 08:31:39,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:31:39" (1/1) ... [2024-11-07 08:31:39,935 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 08:31:40,058 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-47.i[915,928] [2024-11-07 08:31:40,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:31:40,099 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 08:31:40,106 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-47.i[915,928] [2024-11-07 08:31:40,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:31:40,135 INFO L204 MainTranslator]: Completed translation [2024-11-07 08:31:40,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40 WrapperNode [2024-11-07 08:31:40,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 08:31:40,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 08:31:40,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 08:31:40,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 08:31:40,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (1/1) ... [2024-11-07 08:31:40,149 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (1/1) ... [2024-11-07 08:31:40,173 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-11-07 08:31:40,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 08:31:40,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 08:31:40,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 08:31:40,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 08:31:40,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (1/1) ... [2024-11-07 08:31:40,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (1/1) ... [2024-11-07 08:31:40,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (1/1) ... [2024-11-07 08:31:40,205 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 08:31:40,205 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (1/1) ... [2024-11-07 08:31:40,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (1/1) ... [2024-11-07 08:31:40,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (1/1) ... [2024-11-07 08:31:40,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (1/1) ... [2024-11-07 08:31:40,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (1/1) ... [2024-11-07 08:31:40,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (1/1) ... [2024-11-07 08:31:40,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 08:31:40,226 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 08:31:40,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 08:31:40,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 08:31:40,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (1/1) ... [2024-11-07 08:31:40,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:31:40,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 08:31:40,268 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 08:31:40,276 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 08:31:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 08:31:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 08:31:40,295 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 08:31:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 08:31:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 08:31:40,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 08:31:40,365 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 08:31:40,366 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 08:31:40,525 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-07 08:31:40,525 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 08:31:40,534 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 08:31:40,535 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 08:31:40,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:31:40 BoogieIcfgContainer [2024-11-07 08:31:40,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 08:31:40,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 08:31:40,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 08:31:40,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 08:31:40,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:31:39" (1/3) ... [2024-11-07 08:31:40,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13542ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:31:40, skipping insertion in model container [2024-11-07 08:31:40,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:40" (2/3) ... [2024-11-07 08:31:40,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13542ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:31:40, skipping insertion in model container [2024-11-07 08:31:40,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:31:40" (3/3) ... [2024-11-07 08:31:40,544 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-47.i [2024-11-07 08:31:40,554 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 08:31:40,554 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 08:31:40,592 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 08:31:40,601 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;@6de559f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 08:31:40,601 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 08:31:40,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-07 08:31:40,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-07 08:31:40,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:31:40,611 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:40,612 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:31:40,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:31:40,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1342335269, now seen corresponding path program 1 times [2024-11-07 08:31:40,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:31:40,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404136] [2024-11-07 08:31:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:31:40,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:31:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:40,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:31:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:40,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 08:31:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:40,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 08:31:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:40,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 08:31:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:40,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-07 08:31:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:40,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 08:31:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:40,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 08:31:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:40,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 08:31:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:40,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 08:31:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:40,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-07 08:31:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:40,862 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-07 08:31:40,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:31:40,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404136] [2024-11-07 08:31:40,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:31:40,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:31:40,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 08:31:40,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364734155] [2024-11-07 08:31:40,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:31:40,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 08:31:40,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:31:40,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 08:31:40,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 08:31:40,889 INFO L87 Difference]: Start difference. First operand has 41 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-07 08:31:40,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:31:40,910 INFO L93 Difference]: Finished difference Result 75 states and 120 transitions. [2024-11-07 08:31:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 08:31:40,911 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2024-11-07 08:31:40,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:31:40,916 INFO L225 Difference]: With dead ends: 75 [2024-11-07 08:31:40,916 INFO L226 Difference]: Without dead ends: 37 [2024-11-07 08:31:40,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 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 08:31:40,924 INFO L432 NwaCegarLoop]: 51 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, 51 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 08:31:40,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:31:40,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-07 08:31:40,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-07 08:31:40,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-07 08:31:40,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2024-11-07 08:31:40,965 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 69 [2024-11-07 08:31:40,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:31:40,966 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2024-11-07 08:31:40,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-07 08:31:40,967 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2024-11-07 08:31:40,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-07 08:31:40,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:31:40,969 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:40,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 08:31:40,969 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:31:40,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:31:40,970 INFO L85 PathProgramCache]: Analyzing trace with hash 645508055, now seen corresponding path program 1 times [2024-11-07 08:31:40,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:31:40,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185631159] [2024-11-07 08:31:40,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:31:40,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:31:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 08:31:41,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 08:31:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 08:31:41,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 08:31:41,285 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 08:31:41,286 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-07 08:31:41,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 08:31:41,291 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-07 08:31:41,351 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 08:31:41,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:31:41 BoogieIcfgContainer [2024-11-07 08:31:41,356 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 08:31:41,356 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 08:31:41,356 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 08:31:41,357 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 08:31:41,358 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:31:40" (3/4) ... [2024-11-07 08:31:41,360 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 08:31:41,360 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 08:31:41,363 INFO L158 Benchmark]: Toolchain (without parser) took 1444.29ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 56.5MB in the end (delta: 35.2MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2024-11-07 08:31:41,364 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 117.4MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 08:31:41,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.70ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 79.3MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 08:31:41,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.10ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 08:31:41,364 INFO L158 Benchmark]: Boogie Preprocessor took 51.52ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 75.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 08:31:41,364 INFO L158 Benchmark]: RCFGBuilder took 309.46ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 63.2MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 08:31:41,365 INFO L158 Benchmark]: TraceAbstraction took 818.03ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 56.5MB in the end (delta: 6.1MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-11-07 08:31:41,365 INFO L158 Benchmark]: Witness Printer took 4.07ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 56.5MB in the end (delta: 34.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 08:31:41,368 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77ms. Allocated memory is still 117.4MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.70ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 79.3MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.10ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.52ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 75.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.46ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 63.2MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 818.03ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 56.5MB in the end (delta: 6.1MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Witness Printer took 4.07ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 56.5MB in the end (delta: 34.6kB). 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 someBinaryFLOATComparisonOperation at line 81, overapproximation of someUnaryDOUBLEoperation at line 24, overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someUnaryFLOAToperation at line 49, overapproximation of someBinaryArithmeticFLOAToperation at line 49. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 24.575; [L23] double var_1_8 = 128.5; [L24] float var_1_9 = -0.5; [L25] float var_1_10 = 200.4; [L26] unsigned long int var_1_11 = 4; [L27] unsigned char var_1_12 = 1; [L28] unsigned long int var_1_13 = 3607105345; [L29] signed char var_1_14 = 0; [L30] signed char var_1_15 = 0; [L31] signed char var_1_16 = 16; [L32] double last_1_var_1_1 = 24.575; [L33] float last_1_var_1_9 = -0.5; VAL [isInitial=0, last_1_var_1_1=983/40, var_1_10=1002/5, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_8=257/2] [L85] isInitial = 1 [L86] FCALL initially() [L87] COND TRUE 1 [L88] CALL updateLastVariables() [L77] last_1_var_1_1 = var_1_1 [L78] last_1_var_1_9 = var_1_9 VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_10=1002/5, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_8=257/2, var_1_9=4294967301] [L88] RET updateLastVariables() [L89] CALL updateVariables() [L59] var_1_8 = __VERIFIER_nondet_double() [L60] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_10=1002/5, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_10=1002/5, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L60] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_10=1002/5, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L61] var_1_10 = __VERIFIER_nondet_float() [L62] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L62] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=1, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L63] var_1_12 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L64] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L65] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L65] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=3607105345, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L66] var_1_13 = __VERIFIER_nondet_ulong() [L67] CALL assume_abort_if_not(var_1_13 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L67] RET assume_abort_if_not(var_1_13 >= 2147483647) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L68] CALL assume_abort_if_not(var_1_13 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L68] RET assume_abort_if_not(var_1_13 <= 4294967294) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=0, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L69] var_1_15 = __VERIFIER_nondet_char() [L70] CALL assume_abort_if_not(var_1_15 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L70] RET assume_abort_if_not(var_1_15 >= -1) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L71] CALL assume_abort_if_not(var_1_15 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L71] RET assume_abort_if_not(var_1_15 <= 126) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=16, var_1_1=983/40, var_1_9=4294967301] [L72] var_1_16 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L73] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L74] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L74] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=0, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L89] RET updateVariables() [L90] CALL step() [L37] COND FALSE !(((((last_1_var_1_9) > (last_1_var_1_9)) ? (last_1_var_1_9) : (last_1_var_1_9))) >= last_1_var_1_1) [L42] var_1_14 = var_1_15 VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L44] COND FALSE !(\read(var_1_12)) [L47] var_1_11 = ((((var_1_14) > ((var_1_13 - (var_1_14 + 32u)))) ? (var_1_14) : ((var_1_13 - (var_1_14 + 32u))))) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4294967136, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967301] [L49] var_1_9 = ((((var_1_10 - ((((10000.4f) < 0 ) ? -(10000.4f) : (10000.4f)))) < 0 ) ? -(var_1_10 - ((((10000.4f) < 0 ) ? -(10000.4f) : (10000.4f)))) : (var_1_10 - ((((10000.4f) < 0 ) ? -(10000.4f) : (10000.4f)))))) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4294967136, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=983/40, var_1_9=4294967299] [L50] COND FALSE !(var_1_9 <= var_1_9) [L55] var_1_1 = var_1_8 VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4294967136, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=4294967300, var_1_8=4294967300, var_1_9=4294967299] [L90] RET step() [L91] CALL, EXPR property() [L81-L82] return ((((var_1_9 <= var_1_9) ? (((var_1_11 + var_1_11) >= (var_1_14 + var_1_14)) ? (var_1_1 == ((double) var_1_8)) : 1) : (var_1_1 == ((double) var_1_8))) && (var_1_9 == ((float) ((((var_1_10 - ((((10000.4f) < 0 ) ? -(10000.4f) : (10000.4f)))) < 0 ) ? -(var_1_10 - ((((10000.4f) < 0 ) ? -(10000.4f) : (10000.4f)))) : (var_1_10 - ((((10000.4f) < 0 ) ? -(10000.4f) : (10000.4f))))))))) && (var_1_12 ? (var_1_11 == ((unsigned long int) ((((var_1_14) < (var_1_14)) ? (var_1_14) : (var_1_14))))) : (var_1_11 == ((unsigned long int) ((((var_1_14) > ((var_1_13 - (var_1_14 + 32u)))) ? (var_1_14) : ((var_1_13 - (var_1_14 + 32u))))))))) && ((((((last_1_var_1_9) > (last_1_var_1_9)) ? (last_1_var_1_9) : (last_1_var_1_9))) >= last_1_var_1_1) ? (var_1_12 ? (var_1_14 == ((signed char) (var_1_15 - var_1_16))) : 1) : (var_1_14 == ((signed char) var_1_15))) ; VAL [\result=0, isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4294967136, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=4294967300, var_1_8=4294967300, var_1_9=4294967299] [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4294967136, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=4294967300, var_1_8=4294967300, var_1_9=4294967299] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=983/40, last_1_var_1_9=4294967301, var_1_11=4294967136, var_1_12=0, var_1_13=4294967294, var_1_14=126, var_1_15=126, var_1_16=1, var_1_1=4294967300, var_1_8=4294967300, var_1_9=4294967299] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 51 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 180/180 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 08:31:41,398 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-47.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 adf480f71c98f97b1e3553d7ccd07596f803ed516785c8ed007d232ae0455bf0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 08:31:43,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 08:31:43,734 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-07 08:31:43,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 08:31:43,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 08:31:43,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 08:31:43,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 08:31:43,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 08:31:43,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 08:31:43,767 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 08:31:43,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 08:31:43,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 08:31:43,768 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 08:31:43,768 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 08:31:43,768 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 08:31:43,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 08:31:43,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 08:31:43,768 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 08:31:43,768 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 08:31:43,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 08:31:43,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 08:31:43,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 08:31:43,769 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 08:31:43,769 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 08:31:43,769 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 08:31:43,769 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 08:31:43,769 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 08:31:43,769 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 08:31:43,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 08:31:43,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 08:31:43,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 08:31:43,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 08:31:43,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 08:31:43,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 08:31:43,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:31:43,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 08:31:43,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 08:31:43,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 08:31:43,770 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 08:31:43,770 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 08:31:43,770 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 08:31:43,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 08:31:43,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 08:31:43,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 08:31:43,770 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 -> adf480f71c98f97b1e3553d7ccd07596f803ed516785c8ed007d232ae0455bf0 [2024-11-07 08:31:44,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 08:31:44,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 08:31:44,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 08:31:44,088 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 08:31:44,088 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 08:31:44,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i [2024-11-07 08:31:45,414 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 08:31:45,622 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 08:31:45,623 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-47.i [2024-11-07 08:31:45,632 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ccb94726/41d48a739ea94eaba19731e32eb45f48/FLAG4603c7399 [2024-11-07 08:31:45,648 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ccb94726/41d48a739ea94eaba19731e32eb45f48 [2024-11-07 08:31:45,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 08:31:45,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 08:31:45,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 08:31:45,655 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 08:31:45,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 08:31:45,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:45,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6adefff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45, skipping insertion in model container [2024-11-07 08:31:45,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:45,679 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 08:31:45,815 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-47.i[915,928] [2024-11-07 08:31:45,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:31:45,884 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 08:31:45,896 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-47.i[915,928] [2024-11-07 08:31:45,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:31:45,942 INFO L204 MainTranslator]: Completed translation [2024-11-07 08:31:45,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45 WrapperNode [2024-11-07 08:31:45,944 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 08:31:45,945 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 08:31:45,945 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 08:31:45,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 08:31:45,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:45,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:45,996 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88 [2024-11-07 08:31:45,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 08:31:45,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 08:31:45,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 08:31:45,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 08:31:46,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:46,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:46,009 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:46,017 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 08:31:46,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:46,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:46,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:46,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:46,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:46,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:46,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 08:31:46,035 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 08:31:46,035 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 08:31:46,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 08:31:46,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (1/1) ... [2024-11-07 08:31:46,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:31:46,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 08:31:46,070 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 08:31:46,076 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 08:31:46,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 08:31:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-07 08:31:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 08:31:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 08:31:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 08:31:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 08:31:46,178 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 08:31:46,180 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 08:31:46,660 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-07 08:31:46,660 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 08:31:46,670 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 08:31:46,671 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 08:31:46,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:31:46 BoogieIcfgContainer [2024-11-07 08:31:46,671 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 08:31:46,675 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 08:31:46,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 08:31:46,680 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 08:31:46,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:31:45" (1/3) ... [2024-11-07 08:31:46,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99363a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:31:46, skipping insertion in model container [2024-11-07 08:31:46,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:45" (2/3) ... [2024-11-07 08:31:46,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99363a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:31:46, skipping insertion in model container [2024-11-07 08:31:46,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:31:46" (3/3) ... [2024-11-07 08:31:46,684 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-47.i [2024-11-07 08:31:46,696 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 08:31:46,697 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 08:31:46,742 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 08:31:46,752 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;@178a5c55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 08:31:46,752 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 08:31:46,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-07 08:31:46,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-07 08:31:46,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:31:46,766 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:46,766 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:31:46,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:31:46,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1342335269, now seen corresponding path program 1 times [2024-11-07 08:31:46,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 08:31:46,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470408607] [2024-11-07 08:31:46,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:31:46,778 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 08:31:46,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 08:31:46,782 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 08:31:46,784 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 08:31:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:46,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-07 08:31:46,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 08:31:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-07 08:31:47,007 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 08:31:47,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 08:31:47,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470408607] [2024-11-07 08:31:47,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470408607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:31:47,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:31:47,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 08:31:47,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880258611] [2024-11-07 08:31:47,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:31:47,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 08:31:47,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 08:31:47,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 08:31:47,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 08:31:47,033 INFO L87 Difference]: Start difference. First operand has 41 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-07 08:31:47,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:31:47,050 INFO L93 Difference]: Finished difference Result 75 states and 120 transitions. [2024-11-07 08:31:47,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 08:31:47,051 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 69 [2024-11-07 08:31:47,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:31:47,056 INFO L225 Difference]: With dead ends: 75 [2024-11-07 08:31:47,056 INFO L226 Difference]: Without dead ends: 37 [2024-11-07 08:31:47,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 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 08:31:47,062 INFO L432 NwaCegarLoop]: 51 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, 51 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 08:31:47,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:31:47,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-07 08:31:47,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-07 08:31:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-07 08:31:47,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2024-11-07 08:31:47,094 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 69 [2024-11-07 08:31:47,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:31:47,095 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2024-11-07 08:31:47,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-07 08:31:47,096 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2024-11-07 08:31:47,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-07 08:31:47,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:31:47,100 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:47,109 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 08:31:47,300 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 08:31:47,301 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:31:47,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:31:47,302 INFO L85 PathProgramCache]: Analyzing trace with hash 645508055, now seen corresponding path program 1 times [2024-11-07 08:31:47,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 08:31:47,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977166577] [2024-11-07 08:31:47,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:31:47,302 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 08:31:47,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 08:31:47,305 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 08:31:47,306 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 08:31:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:47,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 08:31:47,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 08:31:50,915 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 43 proven. 24 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-07 08:31:50,916 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 08:31:58,946 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-07 08:31:58,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 08:31:58,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977166577] [2024-11-07 08:31:58,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977166577] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 08:31:58,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 08:31:58,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-07 08:31:58,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121117919] [2024-11-07 08:31:58,948 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 08:31:58,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 08:31:58,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 08:31:58,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 08:31:58,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-07 08:31:58,955 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-07 08:32:09,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-07 08:32:25,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-07 08:32:28,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-07 08:32:29,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-07 08:32:31,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-07 08:32:32,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-07 08:32:33,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:32:33,864 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2024-11-07 08:32:33,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 08:32:33,874 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 69 [2024-11-07 08:32:33,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:32:33,876 INFO L225 Difference]: With dead ends: 109 [2024-11-07 08:32:33,876 INFO L226 Difference]: Without dead ends: 75 [2024-11-07 08:32:33,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=197, Invalid=403, Unknown=0, NotChecked=0, Total=600 [2024-11-07 08:32:33,878 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 147 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-07 08:32:33,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 133 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2024-11-07 08:32:33,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-07 08:32:33,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 41. [2024-11-07 08:32:33,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-07 08:32:33,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2024-11-07 08:32:33,890 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 69 [2024-11-07 08:32:33,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:32:33,890 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2024-11-07 08:32:33,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-07 08:32:33,890 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2024-11-07 08:32:33,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-07 08:32:33,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:32:33,892 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:32:33,900 INFO L552 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)] Ended with exit code 0 [2024-11-07 08:32:34,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /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 08:32:34,093 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:32:34,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:32:34,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1699647086, now seen corresponding path program 1 times [2024-11-07 08:32:34,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 08:32:34,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995010696] [2024-11-07 08:32:34,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:32:34,094 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 08:32:34,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 08:32:34,096 INFO L229 MonitoredProcess]: Starting monitored process 4 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 08:32:34,097 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 (4)] Waiting until timeout for monitored process [2024-11-07 08:32:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:32:34,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-07 08:32:34,213 INFO L278 TraceCheckSpWp]: Computing forward predicates...