./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-35.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_floatingpointinfluence_no-floats_file-35.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', '3a4c213194d0d302ccf39bf2760a513e73fc81c5efa3fff556483cb0c00b1161'] 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_floatingpointinfluence_no-floats_file-35.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 3a4c213194d0d302ccf39bf2760a513e73fc81c5efa3fff556483cb0c00b1161 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 07:47:19,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 07:47:19,158 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 07:47:19,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 07:47:19,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 07:47:19,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 07:47:19,193 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 07:47:19,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 07:47:19,194 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 07:47:19,194 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 07:47:19,194 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 07:47:19,194 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 07:47:19,195 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 07:47:19,196 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 07:47:19,198 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 07:47:19,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 07:47:19,198 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 07:47:19,198 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 07:47:19,198 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 07:47:19,198 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 07:47:19,198 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 07:47:19,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 07:47:19,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 07:47:19,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 07:47:19,198 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 07:47:19,198 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 07:47:19,199 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 07:47:19,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 07:47:19,199 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 07:47:19,200 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 -> 3a4c213194d0d302ccf39bf2760a513e73fc81c5efa3fff556483cb0c00b1161 [2024-11-07 07:47:19,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 07:47:19,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 07:47:19,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 07:47:19,502 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 07:47:19,503 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 07:47:19,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-35.i [2024-11-07 07:47:20,858 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 07:47:21,076 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 07:47:21,077 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-35.i [2024-11-07 07:47:21,082 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f7e4c988f/666f37db4ff14f4083655a4a788a8d2a/FLAG1d133db9b [2024-11-07 07:47:21,093 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f7e4c988f/666f37db4ff14f4083655a4a788a8d2a [2024-11-07 07:47:21,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 07:47:21,096 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 07:47:21,097 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 07:47:21,097 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 07:47:21,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 07:47:21,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,102 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b0e3b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21, skipping insertion in model container [2024-11-07 07:47:21,102 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,115 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 07:47:21,230 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_floatingpointinfluence_no-floats_file-35.i[916,929] [2024-11-07 07:47:21,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 07:47:21,288 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 07:47:21,301 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_floatingpointinfluence_no-floats_file-35.i[916,929] [2024-11-07 07:47:21,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 07:47:21,337 INFO L204 MainTranslator]: Completed translation [2024-11-07 07:47:21,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21 WrapperNode [2024-11-07 07:47:21,338 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 07:47:21,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 07:47:21,340 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 07:47:21,340 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 07:47:21,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,395 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2024-11-07 07:47:21,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 07:47:21,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 07:47:21,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 07:47:21,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 07:47:21,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,418 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,445 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 07:47:21,445 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,445 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,450 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 07:47:21,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 07:47:21,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 07:47:21,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 07:47:21,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (1/1) ... [2024-11-07 07:47:21,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 07:47:21,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 07:47:21,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 07:47:21,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 07:47:21,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 07:47:21,524 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 07:47:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 07:47:21,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 07:47:21,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 07:47:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 07:47:21,608 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 07:47:21,610 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 07:47:21,917 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-07 07:47:21,918 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 07:47:21,927 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 07:47:21,928 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 07:47:21,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:47:21 BoogieIcfgContainer [2024-11-07 07:47:21,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 07:47:21,931 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 07:47:21,932 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 07:47:21,936 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 07:47:21,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:47:21" (1/3) ... [2024-11-07 07:47:21,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ea4877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:47:21, skipping insertion in model container [2024-11-07 07:47:21,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:21" (2/3) ... [2024-11-07 07:47:21,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ea4877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:47:21, skipping insertion in model container [2024-11-07 07:47:21,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:47:21" (3/3) ... [2024-11-07 07:47:21,940 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-35.i [2024-11-07 07:47:21,953 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 07:47:21,954 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 07:47:22,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 07:47:22,049 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;@6327e08a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 07:47:22,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 07:47:22,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-07 07:47:22,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-07 07:47:22,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:47:22,070 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:47:22,071 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:47:22,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:47:22,078 INFO L85 PathProgramCache]: Analyzing trace with hash 799744561, now seen corresponding path program 1 times [2024-11-07 07:47:22,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:47:22,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514610051] [2024-11-07 07:47:22,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:47:22,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:47:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:47:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:47:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:47:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:47:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:47:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:47:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:47:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:47:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:47:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:47:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:47:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:47:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:47:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:47:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:47:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:47:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:47:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:47:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:47:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:47:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,495 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 07:47:22,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:47:22,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514610051] [2024-11-07 07:47:22,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514610051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:47:22,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:47:22,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 07:47:22,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561138018] [2024-11-07 07:47:22,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:47:22,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 07:47:22,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:47:22,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 07:47:22,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 07:47:22,526 INFO L87 Difference]: Start difference. First operand has 56 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-07 07:47:22,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:47:22,552 INFO L93 Difference]: Finished difference Result 105 states and 182 transitions. [2024-11-07 07:47:22,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 07:47:22,554 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 125 [2024-11-07 07:47:22,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:47:22,561 INFO L225 Difference]: With dead ends: 105 [2024-11-07 07:47:22,562 INFO L226 Difference]: Without dead ends: 52 [2024-11-07 07:47:22,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 07:47:22,569 INFO L432 NwaCegarLoop]: 77 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, 77 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 07:47:22,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 07:47:22,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-07 07:47:22,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-07 07:47:22,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-07 07:47:22,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2024-11-07 07:47:22,614 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 125 [2024-11-07 07:47:22,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:47:22,615 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2024-11-07 07:47:22,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-07 07:47:22,615 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2024-11-07 07:47:22,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-07 07:47:22,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:47:22,617 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:47:22,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 07:47:22,618 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:47:22,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:47:22,618 INFO L85 PathProgramCache]: Analyzing trace with hash 2091026993, now seen corresponding path program 1 times [2024-11-07 07:47:22,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:47:22,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540138654] [2024-11-07 07:47:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:47:22,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:47:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:47:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:47:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:47:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:47:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:47:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:47:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:47:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:47:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:47:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:47:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:47:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:47:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:47:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:47:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:47:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:47:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:47:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:47:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:47:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:47:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:22,924 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 07:47:22,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:47:22,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540138654] [2024-11-07 07:47:22,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540138654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:47:22,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:47:22,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 07:47:22,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090259822] [2024-11-07 07:47:22,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:47:22,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 07:47:22,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:47:22,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 07:47:22,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:47:22,929 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 07:47:22,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:47:22,988 INFO L93 Difference]: Finished difference Result 148 states and 221 transitions. [2024-11-07 07:47:22,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 07:47:22,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 125 [2024-11-07 07:47:22,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:47:22,992 INFO L225 Difference]: With dead ends: 148 [2024-11-07 07:47:22,993 INFO L226 Difference]: Without dead ends: 99 [2024-11-07 07:47:22,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:47:22,994 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 70 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 07:47:22,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 144 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 07:47:22,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-07 07:47:23,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 53. [2024-11-07 07:47:23,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-07 07:47:23,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 77 transitions. [2024-11-07 07:47:23,013 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 77 transitions. Word has length 125 [2024-11-07 07:47:23,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:47:23,014 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 77 transitions. [2024-11-07 07:47:23,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 07:47:23,015 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 77 transitions. [2024-11-07 07:47:23,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-07 07:47:23,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:47:23,016 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:47:23,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 07:47:23,016 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:47:23,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:47:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2146682001, now seen corresponding path program 1 times [2024-11-07 07:47:23,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:47:23,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433616376] [2024-11-07 07:47:23,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:47:23,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:47:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:47:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:47:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 07:47:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:47:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 07:47:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 07:47:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 07:47:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:47:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:47:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:47:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:47:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:47:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:47:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:47:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:47:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:47:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:47:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:47:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:47:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:47:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:47:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-07 07:47:25,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:47:25,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433616376] [2024-11-07 07:47:25,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433616376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:47:25,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:47:25,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 07:47:25,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119309904] [2024-11-07 07:47:25,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:47:25,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 07:47:25,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:47:25,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 07:47:25,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-07 07:47:25,208 INFO L87 Difference]: Start difference. First operand 53 states and 77 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 07:47:25,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:47:25,455 INFO L93 Difference]: Finished difference Result 139 states and 197 transitions. [2024-11-07 07:47:25,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 07:47:25,456 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 125 [2024-11-07 07:47:25,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:47:25,458 INFO L225 Difference]: With dead ends: 139 [2024-11-07 07:47:25,458 INFO L226 Difference]: Without dead ends: 89 [2024-11-07 07:47:25,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-07 07:47:25,459 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 51 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 07:47:25,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 337 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 07:47:25,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-07 07:47:25,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2024-11-07 07:47:25,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.205128205128205) internal successors, (47), 39 states have internal predecessors, (47), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-07 07:47:25,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 87 transitions. [2024-11-07 07:47:25,474 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 87 transitions. Word has length 125 [2024-11-07 07:47:25,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:47:25,474 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 87 transitions. [2024-11-07 07:47:25,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-07 07:47:25,475 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 87 transitions. [2024-11-07 07:47:25,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-07 07:47:25,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:47:25,478 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:47:25,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 07:47:25,478 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:47:25,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:47:25,481 INFO L85 PathProgramCache]: Analyzing trace with hash 373277933, now seen corresponding path program 1 times [2024-11-07 07:47:25,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:47:25,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646216859] [2024-11-07 07:47:25,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:47:25,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:47:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat