./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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/bitvector/soft_float_2.c.cil.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '31f10835cae624a55ab7ddafebce266aec4d698d20be3ba19631eaedd9136bff'] 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/bitvector/soft_float_2.c.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f10835cae624a55ab7ddafebce266aec4d698d20be3ba19631eaedd9136bff --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:48:56,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:48:56,595 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 19:48:56,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:48:56,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:48:56,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:48:56,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:48:56,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:48:56,634 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:48:56,634 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:48:56,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:48:56,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:48:56,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:48:56,636 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:48:56,636 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:48:56,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:48:56,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 19:48:56,637 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:48:56,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:48:56,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:48:56,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:48:56,637 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 19:48:56,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:48:56,637 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 19:48:56,638 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:48:56,638 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 19:48:56,638 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:48:56,638 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:48:56,638 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 19:48:56,638 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:48:56,639 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:48:56,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:48:56,639 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:48:56,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:48:56,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:48:56,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:48:56,639 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:48:56,639 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 19:48:56,639 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:48:56,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:48:56,639 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:48:56,639 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:48:56,639 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:48:56,639 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:48:56,639 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 ! overflow) ) 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 -> 31f10835cae624a55ab7ddafebce266aec4d698d20be3ba19631eaedd9136bff [2024-11-07 19:48:56,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:48:56,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:48:56,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:48:56,918 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:48:56,918 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:48:56,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_2.c.cil.c [2024-11-07 19:48:58,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:48:58,428 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:48:58,430 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_2.c.cil.c [2024-11-07 19:48:58,440 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/834ffb6fe/0499d50449134af79b33e76f7bfb0890/FLAGa7d8930e3 [2024-11-07 19:48:58,458 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/834ffb6fe/0499d50449134af79b33e76f7bfb0890 [2024-11-07 19:48:58,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:48:58,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:48:58,464 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:48:58,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:48:58,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:48:58,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da3132f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58, skipping insertion in model container [2024-11-07 19:48:58,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,492 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:48:58,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:48:58,677 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:48:58,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:48:58,723 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:48:58,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58 WrapperNode [2024-11-07 19:48:58,724 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:48:58,725 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:48:58,725 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:48:58,725 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:48:58,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,759 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 169 [2024-11-07 19:48:58,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:48:58,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:48:58,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:48:58,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:48:58,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,772 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,782 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 19:48:58,782 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:48:58,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:48:58,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:48:58,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:48:58,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (1/1) ... [2024-11-07 19:48:58,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:48:58,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:48:58,832 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 19:48:58,836 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 19:48:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:48:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:48:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-07 19:48:58,858 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-07 19:48:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:48:58,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:48:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 19:48:58,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 19:48:58,920 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:48:58,922 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:48:59,291 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-07 19:48:59,291 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:48:59,305 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:48:59,306 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 19:48:59,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:48:59 BoogieIcfgContainer [2024-11-07 19:48:59,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:48:59,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:48:59,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:48:59,313 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:48:59,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:48:58" (1/3) ... [2024-11-07 19:48:59,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bd55a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:48:59, skipping insertion in model container [2024-11-07 19:48:59,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:48:58" (2/3) ... [2024-11-07 19:48:59,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bd55a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:48:59, skipping insertion in model container [2024-11-07 19:48:59,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:48:59" (3/3) ... [2024-11-07 19:48:59,315 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_2.c.cil.c [2024-11-07 19:48:59,330 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:48:59,330 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-07 19:48:59,381 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:48:59,392 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;@6a6af157, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:48:59,393 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-07 19:48:59,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 91 states have (on average 1.6483516483516483) internal successors, (150), 116 states have internal predecessors, (150), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-07 19:48:59,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-07 19:48:59,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:48:59,405 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:48:59,406 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:48:59,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:48:59,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1302203311, now seen corresponding path program 1 times [2024-11-07 19:48:59,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:48:59,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149011933] [2024-11-07 19:48:59,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:48:59,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:48:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:48:59,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:48:59,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:48:59,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149011933] [2024-11-07 19:48:59,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149011933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:48:59,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:48:59,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:48:59,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384611307] [2024-11-07 19:48:59,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:48:59,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:48:59,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:48:59,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:48:59,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:48:59,675 INFO L87 Difference]: Start difference. First operand has 123 states, 91 states have (on average 1.6483516483516483) internal successors, (150), 116 states have internal predecessors, (150), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:48:59,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:48:59,832 INFO L93 Difference]: Finished difference Result 297 states and 411 transitions. [2024-11-07 19:48:59,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:48:59,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-07 19:48:59,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:48:59,843 INFO L225 Difference]: With dead ends: 297 [2024-11-07 19:48:59,844 INFO L226 Difference]: Without dead ends: 157 [2024-11-07 19:48:59,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:48:59,854 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 90 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 19:48:59,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 393 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 19:48:59,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-07 19:48:59,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2024-11-07 19:48:59,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 119 states have (on average 1.495798319327731) internal successors, (178), 138 states have internal predecessors, (178), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:48:59,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 186 transitions. [2024-11-07 19:48:59,908 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 186 transitions. Word has length 9 [2024-11-07 19:48:59,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:48:59,908 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 186 transitions. [2024-11-07 19:48:59,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:48:59,909 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 186 transitions. [2024-11-07 19:48:59,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-07 19:48:59,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:48:59,911 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:48:59,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:48:59,911 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:48:59,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:48:59,912 INFO L85 PathProgramCache]: Analyzing trace with hash 2018629041, now seen corresponding path program 1 times [2024-11-07 19:48:59,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:48:59,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737302836] [2024-11-07 19:48:59,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:48:59,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:48:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:48:59,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:48:59,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:48:59,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737302836] [2024-11-07 19:48:59,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737302836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:48:59,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:48:59,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:48:59,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196822474] [2024-11-07 19:48:59,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:48:59,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:48:59,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:48:59,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:48:59,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:48:59,987 INFO L87 Difference]: Start difference. First operand 145 states and 186 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:00,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:00,050 INFO L93 Difference]: Finished difference Result 301 states and 393 transitions. [2024-11-07 19:49:00,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:49:00,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-07 19:49:00,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:00,055 INFO L225 Difference]: With dead ends: 301 [2024-11-07 19:49:00,055 INFO L226 Difference]: Without dead ends: 159 [2024-11-07 19:49:00,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 19:49:00,056 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 12 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:00,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 213 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 19:49:00,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-07 19:49:00,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 149. [2024-11-07 19:49:00,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 123 states have (on average 1.4796747967479675) internal successors, (182), 142 states have internal predecessors, (182), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:00,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 190 transitions. [2024-11-07 19:49:00,070 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 190 transitions. Word has length 14 [2024-11-07 19:49:00,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:00,070 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 190 transitions. [2024-11-07 19:49:00,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:00,070 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 190 transitions. [2024-11-07 19:49:00,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-07 19:49:00,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:00,071 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:00,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:49:00,071 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:00,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:00,072 INFO L85 PathProgramCache]: Analyzing trace with hash 2018517695, now seen corresponding path program 1 times [2024-11-07 19:49:00,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:00,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202558298] [2024-11-07 19:49:00,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:00,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:00,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:49:00,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:00,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202558298] [2024-11-07 19:49:00,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202558298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:00,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:00,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:49:00,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121221330] [2024-11-07 19:49:00,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:00,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:49:00,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:00,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:49:00,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:49:00,118 INFO L87 Difference]: Start difference. First operand 149 states and 190 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:00,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:00,168 INFO L93 Difference]: Finished difference Result 149 states and 190 transitions. [2024-11-07 19:49:00,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:49:00,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-07 19:49:00,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:00,174 INFO L225 Difference]: With dead ends: 149 [2024-11-07 19:49:00,174 INFO L226 Difference]: Without dead ends: 148 [2024-11-07 19:49:00,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:49:00,175 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 1 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:00,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 204 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 19:49:00,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-07 19:49:00,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-07 19:49:00,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.4634146341463414) internal successors, (180), 141 states have internal predecessors, (180), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:00,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 188 transitions. [2024-11-07 19:49:00,191 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 188 transitions. Word has length 14 [2024-11-07 19:49:00,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:00,191 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 188 transitions. [2024-11-07 19:49:00,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:00,192 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 188 transitions. [2024-11-07 19:49:00,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-07 19:49:00,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:00,192 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:00,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 19:49:00,193 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:00,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:00,194 INFO L85 PathProgramCache]: Analyzing trace with hash 829234525, now seen corresponding path program 1 times [2024-11-07 19:49:00,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:00,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054889691] [2024-11-07 19:49:00,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:00,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:00,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:49:00,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:00,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054889691] [2024-11-07 19:49:00,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054889691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:49:00,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785542287] [2024-11-07 19:49:00,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:00,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:00,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:49:00,305 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:49:00,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 19:49:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:00,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 19:49:00,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:49:00,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:49:00,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:49:00,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785542287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:00,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:49:00,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-07 19:49:00,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181669940] [2024-11-07 19:49:00,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:00,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:49:00,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:00,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:49:00,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:49:00,403 INFO L87 Difference]: Start difference. First operand 148 states and 188 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:00,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:00,462 INFO L93 Difference]: Finished difference Result 174 states and 228 transitions. [2024-11-07 19:49:00,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:49:00,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-07 19:49:00,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:00,464 INFO L225 Difference]: With dead ends: 174 [2024-11-07 19:49:00,464 INFO L226 Difference]: Without dead ends: 172 [2024-11-07 19:49:00,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:49:00,465 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 32 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:00,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 208 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 19:49:00,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-07 19:49:00,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 155. [2024-11-07 19:49:00,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 130 states have (on average 1.4384615384615385) internal successors, (187), 148 states have internal predecessors, (187), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:00,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 195 transitions. [2024-11-07 19:49:00,483 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 195 transitions. Word has length 15 [2024-11-07 19:49:00,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:00,483 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 195 transitions. [2024-11-07 19:49:00,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:00,484 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 195 transitions. [2024-11-07 19:49:00,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-07 19:49:00,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:00,484 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:00,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 19:49:00,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:00,685 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:00,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:00,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1850460838, now seen corresponding path program 1 times [2024-11-07 19:49:00,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:00,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657195423] [2024-11-07 19:49:00,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:00,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:49:00,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:00,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657195423] [2024-11-07 19:49:00,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657195423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:49:00,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833010073] [2024-11-07 19:49:00,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:00,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:00,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:49:00,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:49:00,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 19:49:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:00,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 19:49:00,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:49:00,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:49:00,845 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:49:00,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833010073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:00,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:49:00,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-07 19:49:00,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316078818] [2024-11-07 19:49:00,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:00,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:49:00,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:00,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:49:00,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:49:00,846 INFO L87 Difference]: Start difference. First operand 155 states and 195 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:00,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:00,894 INFO L93 Difference]: Finished difference Result 161 states and 203 transitions. [2024-11-07 19:49:00,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:49:00,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-07 19:49:00,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:00,895 INFO L225 Difference]: With dead ends: 161 [2024-11-07 19:49:00,896 INFO L226 Difference]: Without dead ends: 160 [2024-11-07 19:49:00,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:49:00,896 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 17 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:00,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 195 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 19:49:00,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-07 19:49:00,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2024-11-07 19:49:00,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 132 states have (on average 1.4318181818181819) internal successors, (189), 150 states have internal predecessors, (189), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:00,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 197 transitions. [2024-11-07 19:49:00,914 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 197 transitions. Word has length 15 [2024-11-07 19:49:00,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:00,915 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 197 transitions. [2024-11-07 19:49:00,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:00,915 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 197 transitions. [2024-11-07 19:49:00,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-07 19:49:00,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:00,917 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:00,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 19:49:01,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:01,118 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:01,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:01,118 INFO L85 PathProgramCache]: Analyzing trace with hash -63533408, now seen corresponding path program 1 times [2024-11-07 19:49:01,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:01,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450654166] [2024-11-07 19:49:01,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:01,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:01,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 19:49:01,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:01,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450654166] [2024-11-07 19:49:01,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450654166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:01,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:01,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:49:01,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459929031] [2024-11-07 19:49:01,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:01,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:49:01,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:01,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:49:01,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:49:01,158 INFO L87 Difference]: Start difference. First operand 157 states and 197 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:01,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:01,198 INFO L93 Difference]: Finished difference Result 157 states and 197 transitions. [2024-11-07 19:49:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:49:01,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-07 19:49:01,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:01,200 INFO L225 Difference]: With dead ends: 157 [2024-11-07 19:49:01,200 INFO L226 Difference]: Without dead ends: 156 [2024-11-07 19:49:01,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:49:01,201 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 2 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:01,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 198 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 19:49:01,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-07 19:49:01,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2024-11-07 19:49:01,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 130 states have (on average 1.4230769230769231) internal successors, (185), 147 states have internal predecessors, (185), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:01,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 193 transitions. [2024-11-07 19:49:01,219 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 193 transitions. Word has length 16 [2024-11-07 19:49:01,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:01,219 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 193 transitions. [2024-11-07 19:49:01,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:01,219 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 193 transitions. [2024-11-07 19:49:01,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-07 19:49:01,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:01,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:01,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 19:49:01,220 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:01,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:01,222 INFO L85 PathProgramCache]: Analyzing trace with hash -801496273, now seen corresponding path program 1 times [2024-11-07 19:49:01,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:01,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115395391] [2024-11-07 19:49:01,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:01,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:01,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:49:01,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:01,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115395391] [2024-11-07 19:49:01,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115395391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:01,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:01,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:49:01,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389862851] [2024-11-07 19:49:01,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:01,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:49:01,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:01,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:49:01,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:49:01,260 INFO L87 Difference]: Start difference. First operand 154 states and 193 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:01,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:01,309 INFO L93 Difference]: Finished difference Result 315 states and 400 transitions. [2024-11-07 19:49:01,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:49:01,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-07 19:49:01,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:01,312 INFO L225 Difference]: With dead ends: 315 [2024-11-07 19:49:01,312 INFO L226 Difference]: Without dead ends: 164 [2024-11-07 19:49:01,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 19:49:01,314 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 8 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:01,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 211 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 19:49:01,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-07 19:49:01,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 156. [2024-11-07 19:49:01,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 132 states have (on average 1.4015151515151516) internal successors, (185), 149 states have internal predecessors, (185), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:01,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 193 transitions. [2024-11-07 19:49:01,326 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 193 transitions. Word has length 16 [2024-11-07 19:49:01,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:01,327 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 193 transitions. [2024-11-07 19:49:01,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:01,327 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 193 transitions. [2024-11-07 19:49:01,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-07 19:49:01,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:01,329 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:01,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 19:49:01,330 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:01,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:01,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1421009672, now seen corresponding path program 1 times [2024-11-07 19:49:01,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:01,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433848463] [2024-11-07 19:49:01,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:01,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:01,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:49:01,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:01,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433848463] [2024-11-07 19:49:01,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433848463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:01,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:01,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:49:01,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057924143] [2024-11-07 19:49:01,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:01,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:49:01,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:01,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:49:01,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:49:01,406 INFO L87 Difference]: Start difference. First operand 156 states and 193 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:01,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:01,507 INFO L93 Difference]: Finished difference Result 176 states and 212 transitions. [2024-11-07 19:49:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:49:01,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-07 19:49:01,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:01,509 INFO L225 Difference]: With dead ends: 176 [2024-11-07 19:49:01,509 INFO L226 Difference]: Without dead ends: 174 [2024-11-07 19:49:01,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:49:01,510 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 105 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:01,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 378 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 19:49:01,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-07 19:49:01,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 163. [2024-11-07 19:49:01,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 139 states have (on average 1.39568345323741) internal successors, (194), 156 states have internal predecessors, (194), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:01,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 202 transitions. [2024-11-07 19:49:01,517 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 202 transitions. Word has length 16 [2024-11-07 19:49:01,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:01,517 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 202 transitions. [2024-11-07 19:49:01,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:01,517 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 202 transitions. [2024-11-07 19:49:01,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-07 19:49:01,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:01,518 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:01,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 19:49:01,519 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:01,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:01,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1967372727, now seen corresponding path program 1 times [2024-11-07 19:49:01,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:01,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134522678] [2024-11-07 19:49:01,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:01,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:01,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:49:01,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:01,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134522678] [2024-11-07 19:49:01,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134522678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:49:01,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182405973] [2024-11-07 19:49:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:01,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:01,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:49:01,584 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:49:01,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 19:49:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:01,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 19:49:01,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:49:01,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:49:01,656 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:49:01,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182405973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:01,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:49:01,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-07 19:49:01,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926965795] [2024-11-07 19:49:01,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:01,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:49:01,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:01,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:49:01,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:49:01,658 INFO L87 Difference]: Start difference. First operand 163 states and 202 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:01,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:01,721 INFO L93 Difference]: Finished difference Result 171 states and 213 transitions. [2024-11-07 19:49:01,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:49:01,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-07 19:49:01,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:01,722 INFO L225 Difference]: With dead ends: 171 [2024-11-07 19:49:01,722 INFO L226 Difference]: Without dead ends: 170 [2024-11-07 19:49:01,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:49:01,723 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 9 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:01,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 300 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 19:49:01,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-07 19:49:01,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2024-11-07 19:49:01,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 143 states have (on average 1.3776223776223777) internal successors, (197), 160 states have internal predecessors, (197), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:01,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 205 transitions. [2024-11-07 19:49:01,733 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 205 transitions. Word has length 17 [2024-11-07 19:49:01,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:01,734 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 205 transitions. [2024-11-07 19:49:01,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:01,734 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 205 transitions. [2024-11-07 19:49:01,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-07 19:49:01,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:01,735 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:01,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 19:49:01,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:01,936 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:01,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:01,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1720101466, now seen corresponding path program 1 times [2024-11-07 19:49:01,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:01,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118385048] [2024-11-07 19:49:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:01,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:49:02,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:02,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118385048] [2024-11-07 19:49:02,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118385048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:02,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:02,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:49:02,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912112472] [2024-11-07 19:49:02,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:02,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:49:02,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:02,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:49:02,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:49:02,016 INFO L87 Difference]: Start difference. First operand 167 states and 205 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:02,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:02,068 INFO L93 Difference]: Finished difference Result 336 states and 412 transitions. [2024-11-07 19:49:02,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:49:02,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-07 19:49:02,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:02,069 INFO L225 Difference]: With dead ends: 336 [2024-11-07 19:49:02,069 INFO L226 Difference]: Without dead ends: 172 [2024-11-07 19:49:02,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:49:02,070 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 4 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:02,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 317 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 19:49:02,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-07 19:49:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-07 19:49:02,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 147 states have (on average 1.3673469387755102) internal successors, (201), 164 states have internal predecessors, (201), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:02,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 209 transitions. [2024-11-07 19:49:02,078 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 209 transitions. Word has length 17 [2024-11-07 19:49:02,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:02,078 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 209 transitions. [2024-11-07 19:49:02,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:49:02,079 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 209 transitions. [2024-11-07 19:49:02,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-07 19:49:02,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:02,079 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:02,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 19:49:02,080 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:02,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash -448658972, now seen corresponding path program 1 times [2024-11-07 19:49:02,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:02,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265937299] [2024-11-07 19:49:02,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:02,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 19:49:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,156 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 19:49:02,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:02,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265937299] [2024-11-07 19:49:02,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265937299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:02,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:02,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:49:02,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731756273] [2024-11-07 19:49:02,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:02,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:49:02,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:02,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:49:02,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:49:02,159 INFO L87 Difference]: Start difference. First operand 172 states and 209 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 19:49:02,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:02,274 INFO L93 Difference]: Finished difference Result 235 states and 286 transitions. [2024-11-07 19:49:02,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:49:02,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-07 19:49:02,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:02,276 INFO L225 Difference]: With dead ends: 235 [2024-11-07 19:49:02,276 INFO L226 Difference]: Without dead ends: 231 [2024-11-07 19:49:02,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:49:02,277 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 139 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:02,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 302 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 19:49:02,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-07 19:49:02,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 219. [2024-11-07 19:49:02,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 194 states have (on average 1.3453608247422681) internal successors, (261), 210 states have internal predecessors, (261), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:02,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 269 transitions. [2024-11-07 19:49:02,290 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 269 transitions. Word has length 24 [2024-11-07 19:49:02,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:02,290 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 269 transitions. [2024-11-07 19:49:02,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 19:49:02,290 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 269 transitions. [2024-11-07 19:49:02,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-07 19:49:02,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:02,291 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:02,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 19:49:02,291 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:02,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:02,292 INFO L85 PathProgramCache]: Analyzing trace with hash -477286328, now seen corresponding path program 1 times [2024-11-07 19:49:02,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:02,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795457078] [2024-11-07 19:49:02,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:02,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 19:49:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,359 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 19:49:02,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:02,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795457078] [2024-11-07 19:49:02,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795457078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:02,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:02,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:49:02,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452936792] [2024-11-07 19:49:02,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:02,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:49:02,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:02,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:49:02,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:49:02,360 INFO L87 Difference]: Start difference. First operand 219 states and 269 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 19:49:02,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:02,465 INFO L93 Difference]: Finished difference Result 233 states and 281 transitions. [2024-11-07 19:49:02,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:49:02,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-07 19:49:02,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:02,467 INFO L225 Difference]: With dead ends: 233 [2024-11-07 19:49:02,467 INFO L226 Difference]: Without dead ends: 231 [2024-11-07 19:49:02,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:49:02,467 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 141 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:02,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 305 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 19:49:02,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-07 19:49:02,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 210. [2024-11-07 19:49:02,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 185 states have (on average 1.3405405405405406) internal successors, (248), 201 states have internal predecessors, (248), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:02,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 256 transitions. [2024-11-07 19:49:02,482 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 256 transitions. Word has length 24 [2024-11-07 19:49:02,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:02,483 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 256 transitions. [2024-11-07 19:49:02,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 19:49:02,483 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 256 transitions. [2024-11-07 19:49:02,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-07 19:49:02,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:02,485 INFO L215 NwaCegarLoop]: trace histogram [2, 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 19:49:02,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 19:49:02,486 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:02,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:02,486 INFO L85 PathProgramCache]: Analyzing trace with hash -555382723, now seen corresponding path program 1 times [2024-11-07 19:49:02,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:02,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774723262] [2024-11-07 19:49:02,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:02,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:49:02,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:02,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774723262] [2024-11-07 19:49:02,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774723262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:02,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:02,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:49:02,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391779612] [2024-11-07 19:49:02,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:02,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:49:02,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:02,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:49:02,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:49:02,572 INFO L87 Difference]: Start difference. First operand 210 states and 256 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 19:49:02,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:02,627 INFO L93 Difference]: Finished difference Result 368 states and 448 transitions. [2024-11-07 19:49:02,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:49:02,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-07 19:49:02,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:02,628 INFO L225 Difference]: With dead ends: 368 [2024-11-07 19:49:02,628 INFO L226 Difference]: Without dead ends: 187 [2024-11-07 19:49:02,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:49:02,630 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 37 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:02,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 317 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 19:49:02,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-07 19:49:02,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 184. [2024-11-07 19:49:02,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 159 states have (on average 1.3522012578616351) internal successors, (215), 175 states have internal predecessors, (215), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:02,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 223 transitions. [2024-11-07 19:49:02,645 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 223 transitions. Word has length 24 [2024-11-07 19:49:02,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:02,645 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 223 transitions. [2024-11-07 19:49:02,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 19:49:02,646 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 223 transitions. [2024-11-07 19:49:02,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-07 19:49:02,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:02,647 INFO L215 NwaCegarLoop]: trace histogram [2, 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 19:49:02,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 19:49:02,647 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:02,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:02,648 INFO L85 PathProgramCache]: Analyzing trace with hash 63091986, now seen corresponding path program 1 times [2024-11-07 19:49:02,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:02,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827924095] [2024-11-07 19:49:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:02,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:49:02,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:02,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827924095] [2024-11-07 19:49:02,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827924095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:02,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:02,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:49:02,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026589423] [2024-11-07 19:49:02,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:02,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:49:02,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:02,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:49:02,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:49:02,712 INFO L87 Difference]: Start difference. First operand 184 states and 223 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 19:49:02,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:02,802 INFO L93 Difference]: Finished difference Result 355 states and 432 transitions. [2024-11-07 19:49:02,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:49:02,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-07 19:49:02,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:02,804 INFO L225 Difference]: With dead ends: 355 [2024-11-07 19:49:02,804 INFO L226 Difference]: Without dead ends: 204 [2024-11-07 19:49:02,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:49:02,805 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 71 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:02,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 383 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 19:49:02,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-07 19:49:02,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 196. [2024-11-07 19:49:02,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 171 states have (on average 1.3391812865497077) internal successors, (229), 187 states have internal predecessors, (229), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:02,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 237 transitions. [2024-11-07 19:49:02,817 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 237 transitions. Word has length 24 [2024-11-07 19:49:02,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:02,818 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 237 transitions. [2024-11-07 19:49:02,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 19:49:02,818 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 237 transitions. [2024-11-07 19:49:02,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-07 19:49:02,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:02,818 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:02,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 19:49:02,819 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:02,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:02,819 INFO L85 PathProgramCache]: Analyzing trace with hash 324492628, now seen corresponding path program 1 times [2024-11-07 19:49:02,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:02,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381690984] [2024-11-07 19:49:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:02,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 19:49:02,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:02,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381690984] [2024-11-07 19:49:02,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381690984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:02,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:02,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:49:02,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764764176] [2024-11-07 19:49:02,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:02,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:49:02,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:02,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:49:02,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:49:02,864 INFO L87 Difference]: Start difference. First operand 196 states and 237 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 19:49:02,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:02,917 INFO L93 Difference]: Finished difference Result 201 states and 244 transitions. [2024-11-07 19:49:02,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:49:02,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-11-07 19:49:02,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:02,919 INFO L225 Difference]: With dead ends: 201 [2024-11-07 19:49:02,919 INFO L226 Difference]: Without dead ends: 200 [2024-11-07 19:49:02,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:49:02,919 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 8 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:02,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 279 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 19:49:02,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-07 19:49:02,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 186. [2024-11-07 19:49:02,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 161 states have (on average 1.3478260869565217) internal successors, (217), 177 states have internal predecessors, (217), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:02,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 225 transitions. [2024-11-07 19:49:02,935 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 225 transitions. Word has length 29 [2024-11-07 19:49:02,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:02,935 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 225 transitions. [2024-11-07 19:49:02,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 19:49:02,935 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 225 transitions. [2024-11-07 19:49:02,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-07 19:49:02,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:02,936 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:02,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 19:49:02,936 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:02,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:02,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1973004361, now seen corresponding path program 1 times [2024-11-07 19:49:02,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:02,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283173734] [2024-11-07 19:49:02,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:02,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:03,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:03,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 19:49:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:03,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 19:49:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:03,092 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 19:49:03,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:03,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283173734] [2024-11-07 19:49:03,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283173734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:49:03,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240194732] [2024-11-07 19:49:03,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:03,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:03,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:49:03,100 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:49:03,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 19:49:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:03,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:49:03,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:49:03,225 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 19:49:03,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:49:03,385 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 19:49:03,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240194732] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:49:03,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:49:03,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-07 19:49:03,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613660921] [2024-11-07 19:49:03,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:49:03,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 19:49:03,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:03,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 19:49:03,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-07 19:49:03,388 INFO L87 Difference]: Start difference. First operand 186 states and 225 transitions. Second operand has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-07 19:49:03,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:03,672 INFO L93 Difference]: Finished difference Result 652 states and 826 transitions. [2024-11-07 19:49:03,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 19:49:03,672 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-07 19:49:03,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:03,675 INFO L225 Difference]: With dead ends: 652 [2024-11-07 19:49:03,675 INFO L226 Difference]: Without dead ends: 501 [2024-11-07 19:49:03,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=168, Unknown=0, NotChecked=0, Total=272 [2024-11-07 19:49:03,676 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 220 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:03,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 503 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 19:49:03,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-07 19:49:03,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 206. [2024-11-07 19:49:03,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 181 states have (on average 1.3314917127071824) internal successors, (241), 197 states have internal predecessors, (241), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:03,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 249 transitions. [2024-11-07 19:49:03,691 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 249 transitions. Word has length 44 [2024-11-07 19:49:03,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:03,691 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 249 transitions. [2024-11-07 19:49:03,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-07 19:49:03,691 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 249 transitions. [2024-11-07 19:49:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-07 19:49:03,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:03,692 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:49:03,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 19:49:03,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-07 19:49:03,897 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:03,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:03,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1869642328, now seen corresponding path program 1 times [2024-11-07 19:49:03,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:03,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429233191] [2024-11-07 19:49:03,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:03,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:03,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:03,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 19:49:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 19:49:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,006 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 19:49:04,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:04,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429233191] [2024-11-07 19:49:04,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429233191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:04,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:04,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:49:04,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899199720] [2024-11-07 19:49:04,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:04,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:49:04,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:04,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:49:04,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:49:04,009 INFO L87 Difference]: Start difference. First operand 206 states and 249 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 19:49:04,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:04,107 INFO L93 Difference]: Finished difference Result 210 states and 252 transitions. [2024-11-07 19:49:04,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:49:04,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2024-11-07 19:49:04,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:04,109 INFO L225 Difference]: With dead ends: 210 [2024-11-07 19:49:04,109 INFO L226 Difference]: Without dead ends: 207 [2024-11-07 19:49:04,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:49:04,110 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 130 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:04,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 324 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 19:49:04,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-07 19:49:04,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 196. [2024-11-07 19:49:04,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 174 states have (on average 1.3160919540229885) internal successors, (229), 187 states have internal predecessors, (229), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 237 transitions. [2024-11-07 19:49:04,123 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 237 transitions. Word has length 47 [2024-11-07 19:49:04,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:04,124 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 237 transitions. [2024-11-07 19:49:04,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 19:49:04,124 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 237 transitions. [2024-11-07 19:49:04,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-07 19:49:04,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:04,126 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 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 19:49:04,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 19:49:04,126 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:04,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:04,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1898269684, now seen corresponding path program 1 times [2024-11-07 19:49:04,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:04,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362580631] [2024-11-07 19:49:04,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:04,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 19:49:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 19:49:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 19:49:04,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:04,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362580631] [2024-11-07 19:49:04,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362580631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:04,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:04,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:49:04,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869430669] [2024-11-07 19:49:04,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:04,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:49:04,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:04,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:49:04,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:49:04,205 INFO L87 Difference]: Start difference. First operand 196 states and 237 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 19:49:04,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:04,297 INFO L93 Difference]: Finished difference Result 204 states and 246 transitions. [2024-11-07 19:49:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:49:04,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2024-11-07 19:49:04,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:04,298 INFO L225 Difference]: With dead ends: 204 [2024-11-07 19:49:04,299 INFO L226 Difference]: Without dead ends: 202 [2024-11-07 19:49:04,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:49:04,299 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 138 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:04,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 319 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 19:49:04,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-07 19:49:04,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 185. [2024-11-07 19:49:04,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 165 states have (on average 1.3151515151515152) internal successors, (217), 176 states have internal predecessors, (217), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:04,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 225 transitions. [2024-11-07 19:49:04,312 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 225 transitions. Word has length 47 [2024-11-07 19:49:04,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:04,312 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 225 transitions. [2024-11-07 19:49:04,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 19:49:04,312 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 225 transitions. [2024-11-07 19:49:04,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-07 19:49:04,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:04,312 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 19:49:04,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 19:49:04,313 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:04,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:04,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1454050813, now seen corresponding path program 1 times [2024-11-07 19:49:04,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:04,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080536258] [2024-11-07 19:49:04,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:04,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 19:49:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,431 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-07 19:49:04,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:04,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080536258] [2024-11-07 19:49:04,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080536258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:04,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:04,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:49:04,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411062058] [2024-11-07 19:49:04,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:04,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:49:04,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:04,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:49:04,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:49:04,435 INFO L87 Difference]: Start difference. First operand 185 states and 225 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 19:49:04,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:04,494 INFO L93 Difference]: Finished difference Result 347 states and 423 transitions. [2024-11-07 19:49:04,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:49:04,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2024-11-07 19:49:04,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:04,496 INFO L225 Difference]: With dead ends: 347 [2024-11-07 19:49:04,496 INFO L226 Difference]: Without dead ends: 210 [2024-11-07 19:49:04,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:49:04,497 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 11 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:04,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 302 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 19:49:04,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-07 19:49:04,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 181. [2024-11-07 19:49:04,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 161 states have (on average 1.3043478260869565) internal successors, (210), 172 states have internal predecessors, (210), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:04,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 218 transitions. [2024-11-07 19:49:04,509 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 218 transitions. Word has length 47 [2024-11-07 19:49:04,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:04,510 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 218 transitions. [2024-11-07 19:49:04,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 19:49:04,510 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 218 transitions. [2024-11-07 19:49:04,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-07 19:49:04,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:04,510 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:49:04,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 19:49:04,510 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:04,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:04,511 INFO L85 PathProgramCache]: Analyzing trace with hash -338960106, now seen corresponding path program 1 times [2024-11-07 19:49:04,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:04,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033867340] [2024-11-07 19:49:04,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:04,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 19:49:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:04,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:04,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033867340] [2024-11-07 19:49:04,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033867340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:49:04,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:49:04,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:49:04,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758730931] [2024-11-07 19:49:04,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:49:04,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:49:04,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:04,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:49:04,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:49:04,652 INFO L87 Difference]: Start difference. First operand 181 states and 218 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 19:49:04,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:04,748 INFO L93 Difference]: Finished difference Result 398 states and 478 transitions. [2024-11-07 19:49:04,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:49:04,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2024-11-07 19:49:04,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:04,750 INFO L225 Difference]: With dead ends: 398 [2024-11-07 19:49:04,750 INFO L226 Difference]: Without dead ends: 262 [2024-11-07 19:49:04,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:49:04,751 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 64 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:04,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 201 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 19:49:04,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-07 19:49:04,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 181. [2024-11-07 19:49:04,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 161 states have (on average 1.2981366459627328) internal successors, (209), 172 states have internal predecessors, (209), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:04,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 217 transitions. [2024-11-07 19:49:04,764 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 217 transitions. Word has length 48 [2024-11-07 19:49:04,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:04,764 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 217 transitions. [2024-11-07 19:49:04,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 19:49:04,765 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 217 transitions. [2024-11-07 19:49:04,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-07 19:49:04,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:04,765 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:04,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 19:49:04,766 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:04,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:04,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1180459864, now seen corresponding path program 1 times [2024-11-07 19:49:04,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:04,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566580882] [2024-11-07 19:49:04,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:04,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 19:49:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:04,981 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:04,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:04,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566580882] [2024-11-07 19:49:04,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566580882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:49:04,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263245774] [2024-11-07 19:49:04,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:04,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:04,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:49:04,984 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:49:04,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 19:49:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:05,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:49:05,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:49:05,329 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:05,329 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:49:05,636 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:05,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263245774] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:49:05,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:49:05,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 8] total 18 [2024-11-07 19:49:05,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245060686] [2024-11-07 19:49:05,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:49:05,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 19:49:05,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:05,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 19:49:05,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=191, Unknown=0, NotChecked=0, Total=306 [2024-11-07 19:49:05,637 INFO L87 Difference]: Start difference. First operand 181 states and 217 transitions. Second operand has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 19:49:06,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:06,746 INFO L93 Difference]: Finished difference Result 512 states and 612 transitions. [2024-11-07 19:49:06,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 19:49:06,747 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 53 [2024-11-07 19:49:06,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:06,749 INFO L225 Difference]: With dead ends: 512 [2024-11-07 19:49:06,749 INFO L226 Difference]: Without dead ends: 360 [2024-11-07 19:49:06,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=227, Invalid=373, Unknown=0, NotChecked=0, Total=600 [2024-11-07 19:49:06,750 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 119 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:06,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 794 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 19:49:06,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-07 19:49:06,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 181. [2024-11-07 19:49:06,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 161 states have (on average 1.2732919254658386) internal successors, (205), 172 states have internal predecessors, (205), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:06,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 213 transitions. [2024-11-07 19:49:06,768 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 213 transitions. Word has length 53 [2024-11-07 19:49:06,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:06,768 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 213 transitions. [2024-11-07 19:49:06,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 19:49:06,768 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 213 transitions. [2024-11-07 19:49:06,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-07 19:49:06,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:06,769 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 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 19:49:06,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 19:49:06,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:06,974 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:06,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:06,975 INFO L85 PathProgramCache]: Analyzing trace with hash 302294674, now seen corresponding path program 1 times [2024-11-07 19:49:06,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:06,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74726800] [2024-11-07 19:49:06,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:06,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:07,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:07,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 19:49:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:07,168 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:07,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:07,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74726800] [2024-11-07 19:49:07,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74726800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:49:07,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174415039] [2024-11-07 19:49:07,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:07,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:07,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:49:07,171 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:49:07,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 19:49:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:07,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:49:07,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:49:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:07,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:49:07,675 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:07,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174415039] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:49:07,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:49:07,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2024-11-07 19:49:07,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802013606] [2024-11-07 19:49:07,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:49:07,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-07 19:49:07,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:07,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-07 19:49:07,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2024-11-07 19:49:07,678 INFO L87 Difference]: Start difference. First operand 181 states and 213 transitions. Second operand has 26 states, 26 states have (on average 5.115384615384615) internal successors, (133), 26 states have internal predecessors, (133), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-07 19:49:08,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:08,131 INFO L93 Difference]: Finished difference Result 969 states and 1207 transitions. [2024-11-07 19:49:08,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 19:49:08,132 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.115384615384615) internal successors, (133), 26 states have internal predecessors, (133), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 64 [2024-11-07 19:49:08,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:08,135 INFO L225 Difference]: With dead ends: 969 [2024-11-07 19:49:08,135 INFO L226 Difference]: Without dead ends: 843 [2024-11-07 19:49:08,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=508, Unknown=0, NotChecked=0, Total=812 [2024-11-07 19:49:08,138 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 471 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:08,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 698 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 19:49:08,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2024-11-07 19:49:08,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 221. [2024-11-07 19:49:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 201 states have (on average 1.2587064676616915) internal successors, (253), 212 states have internal predecessors, (253), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:08,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 261 transitions. [2024-11-07 19:49:08,166 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 261 transitions. Word has length 64 [2024-11-07 19:49:08,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:08,166 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 261 transitions. [2024-11-07 19:49:08,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.115384615384615) internal successors, (133), 26 states have internal predecessors, (133), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-07 19:49:08,167 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 261 transitions. [2024-11-07 19:49:08,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-07 19:49:08,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:08,168 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:08,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 19:49:08,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-07 19:49:08,369 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:08,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:08,369 INFO L85 PathProgramCache]: Analyzing trace with hash 85610712, now seen corresponding path program 2 times [2024-11-07 19:49:08,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:08,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849212467] [2024-11-07 19:49:08,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:08,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:08,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:08,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 19:49:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:08,743 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 18 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:08,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:08,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849212467] [2024-11-07 19:49:08,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849212467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:49:08,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131939110] [2024-11-07 19:49:08,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:49:08,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:08,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:49:08,746 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:49:08,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 19:49:08,852 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:49:08,852 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:49:08,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-07 19:49:08,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:49:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 18 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:09,929 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:49:11,427 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 18 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:11,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131939110] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:49:11,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:49:11,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 18, 17] total 41 [2024-11-07 19:49:11,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125277685] [2024-11-07 19:49:11,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:49:11,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-07 19:49:11,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:11,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-07 19:49:11,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=491, Invalid=1149, Unknown=0, NotChecked=0, Total=1640 [2024-11-07 19:49:11,430 INFO L87 Difference]: Start difference. First operand 221 states and 261 transitions. Second operand has 41 states, 41 states have (on average 3.658536585365854) internal successors, (150), 41 states have internal predecessors, (150), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 19:49:15,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:15,743 INFO L93 Difference]: Finished difference Result 720 states and 856 transitions. [2024-11-07 19:49:15,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-07 19:49:15,744 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.658536585365854) internal successors, (150), 41 states have internal predecessors, (150), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 73 [2024-11-07 19:49:15,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:15,748 INFO L225 Difference]: With dead ends: 720 [2024-11-07 19:49:15,748 INFO L226 Difference]: Without dead ends: 566 [2024-11-07 19:49:15,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=951, Invalid=2019, Unknown=0, NotChecked=0, Total=2970 [2024-11-07 19:49:15,750 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 375 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:15,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1718 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-07 19:49:15,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-07 19:49:15,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 221. [2024-11-07 19:49:15,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 201 states have (on average 1.2189054726368158) internal successors, (245), 212 states have internal predecessors, (245), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:15,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 253 transitions. [2024-11-07 19:49:15,774 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 253 transitions. Word has length 73 [2024-11-07 19:49:15,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:15,774 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 253 transitions. [2024-11-07 19:49:15,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.658536585365854) internal successors, (150), 41 states have internal predecessors, (150), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 19:49:15,774 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 253 transitions. [2024-11-07 19:49:15,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-07 19:49:15,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:15,776 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 3, 2, 2, 2, 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 19:49:15,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 19:49:15,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:15,981 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:15,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:15,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1727507346, now seen corresponding path program 2 times [2024-11-07 19:49:15,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:15,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008666424] [2024-11-07 19:49:15,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:15,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:16,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:16,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 19:49:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:16,456 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:16,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:16,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008666424] [2024-11-07 19:49:16,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008666424] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:49:16,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995663573] [2024-11-07 19:49:16,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:49:16,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:16,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:49:16,460 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:49:16,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 19:49:16,527 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:49:16,528 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:49:16,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 19:49:16,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:49:16,824 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:16,824 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:49:17,470 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:17,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995663573] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:49:17,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:49:17,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2024-11-07 19:49:17,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371596059] [2024-11-07 19:49:17,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:49:17,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-07 19:49:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:17,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-07 19:49:17,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2024-11-07 19:49:17,473 INFO L87 Difference]: Start difference. First operand 221 states and 253 transitions. Second operand has 50 states, 50 states have (on average 5.06) internal successors, (253), 50 states have internal predecessors, (253), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-07 19:49:18,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:49:18,177 INFO L93 Difference]: Finished difference Result 1689 states and 2119 transitions. [2024-11-07 19:49:18,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-07 19:49:18,177 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.06) internal successors, (253), 50 states have internal predecessors, (253), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 104 [2024-11-07 19:49:18,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:49:18,182 INFO L225 Difference]: With dead ends: 1689 [2024-11-07 19:49:18,182 INFO L226 Difference]: Without dead ends: 1563 [2024-11-07 19:49:18,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1022 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=992, Invalid=1764, Unknown=0, NotChecked=0, Total=2756 [2024-11-07 19:49:18,183 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 1168 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 19:49:18,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 779 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 19:49:18,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-11-07 19:49:18,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 301. [2024-11-07 19:49:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 281 states have (on average 1.2135231316725978) internal successors, (341), 292 states have internal predecessors, (341), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 19:49:18,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 349 transitions. [2024-11-07 19:49:18,212 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 349 transitions. Word has length 104 [2024-11-07 19:49:18,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:49:18,212 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 349 transitions. [2024-11-07 19:49:18,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.06) internal successors, (253), 50 states have internal predecessors, (253), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-07 19:49:18,212 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 349 transitions. [2024-11-07 19:49:18,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-07 19:49:18,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:49:18,213 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:49:18,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-07 19:49:18,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:18,418 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-07 19:49:18,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:49:18,418 INFO L85 PathProgramCache]: Analyzing trace with hash 12381144, now seen corresponding path program 3 times [2024-11-07 19:49:18,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:49:18,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080712194] [2024-11-07 19:49:18,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:49:18,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:49:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:18,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 19:49:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:18,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 19:49:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:49:19,260 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 18 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:19,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:49:19,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080712194] [2024-11-07 19:49:19,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080712194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:49:19,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580107823] [2024-11-07 19:49:19,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:49:19,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:49:19,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:49:19,263 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:49:19,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 19:49:19,629 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-07 19:49:19,629 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:49:19,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-07 19:49:19,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:49:23,009 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 18 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:23,009 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:49:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 18 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:49:31,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580107823] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:49:31,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:49:31,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 34, 33] total 80 [2024-11-07 19:49:31,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857028387] [2024-11-07 19:49:31,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:49:31,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2024-11-07 19:49:31,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:49:31,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2024-11-07 19:49:31,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1663, Invalid=4657, Unknown=0, NotChecked=0, Total=6320 [2024-11-07 19:49:31,339 INFO L87 Difference]: Start difference. First operand 301 states and 349 transitions. Second operand has 80 states, 80 states have (on average 3.3625) internal successors, (269), 80 states have internal predecessors, (269), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)