./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound20.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/nla-digbench-scaling/geo2-ll_unwindbound20.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', 'ecea962a84fe32a20735cb1daf0369eacb7c8180f4f4ad62c19a1a49422dab47'] 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/nla-digbench-scaling/geo2-ll_unwindbound20.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 ecea962a84fe32a20735cb1daf0369eacb7c8180f4f4ad62c19a1a49422dab47 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 20:33:50,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 20:33:50,613 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 20:33:50,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 20:33:50,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 20:33:50,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 20:33:50,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 20:33:50,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 20:33:50,642 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 20:33:50,642 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 20:33:50,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 20:33:50,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 20:33:50,643 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 20:33:50,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 20:33:50,643 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 20:33:50,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 20:33:50,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 20:33:50,644 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 20:33:50,644 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 20:33:50,644 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 20:33:50,644 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 20:33:50,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 20:33:50,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 20:33:50,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 20:33:50,644 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 20:33:50,645 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 20:33:50,645 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 20:33:50,645 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 20:33:50,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 20:33:50,645 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 20:33:50,645 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 20:33:50,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 20:33:50,645 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 20:33:50,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 20:33:50,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 20:33:50,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 20:33:50,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 20:33:50,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 20:33:50,646 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 20:33:50,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 20:33:50,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 20:33:50,647 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 20:33:50,647 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 20:33:50,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 20:33:50,647 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 -> ecea962a84fe32a20735cb1daf0369eacb7c8180f4f4ad62c19a1a49422dab47 [2024-11-07 20:33:50,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 20:33:50,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 20:33:50,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 20:33:50,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 20:33:50,890 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 20:33:50,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound20.c [2024-11-07 20:33:52,063 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 20:33:52,316 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 20:33:52,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound20.c [2024-11-07 20:33:52,324 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a45e0b088/151a86826fc945e295445a784ebfdf97/FLAG2ae2d9cae [2024-11-07 20:33:52,641 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a45e0b088/151a86826fc945e295445a784ebfdf97 [2024-11-07 20:33:52,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 20:33:52,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 20:33:52,645 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 20:33:52,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 20:33:52,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 20:33:52,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b43115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52, skipping insertion in model container [2024-11-07 20:33:52,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,657 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 20:33:52,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 20:33:52,748 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 20:33:52,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 20:33:52,766 INFO L204 MainTranslator]: Completed translation [2024-11-07 20:33:52,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52 WrapperNode [2024-11-07 20:33:52,766 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 20:33:52,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 20:33:52,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 20:33:52,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 20:33:52,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,783 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2024-11-07 20:33:52,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 20:33:52,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 20:33:52,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 20:33:52,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 20:33:52,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,790 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,796 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 20:33:52,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 20:33:52,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 20:33:52,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 20:33:52,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 20:33:52,804 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (1/1) ... [2024-11-07 20:33:52,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 20:33:52,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:33:52,826 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 20:33:52,828 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 20:33:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 20:33:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 20:33:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 20:33:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 20:33:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 20:33:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 20:33:52,884 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 20:33:52,885 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 20:33:52,953 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-07 20:33:52,953 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 20:33:52,959 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 20:33:52,959 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 20:33:52,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:33:52 BoogieIcfgContainer [2024-11-07 20:33:52,960 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 20:33:52,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 20:33:52,961 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 20:33:52,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 20:33:52,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:33:52" (1/3) ... [2024-11-07 20:33:52,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db5a375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:33:52, skipping insertion in model container [2024-11-07 20:33:52,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:33:52" (2/3) ... [2024-11-07 20:33:52,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db5a375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:33:52, skipping insertion in model container [2024-11-07 20:33:52,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:33:52" (3/3) ... [2024-11-07 20:33:52,967 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll_unwindbound20.c [2024-11-07 20:33:52,977 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 20:33:52,977 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 20:33:53,008 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 20:33:53,016 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;@584b4201, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 20:33:53,016 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 20:33:53,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:33:53,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-07 20:33:53,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:33:53,023 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-07 20:33:53,024 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 20:33:53,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:33:53,028 INFO L85 PathProgramCache]: Analyzing trace with hash 925668, now seen corresponding path program 1 times [2024-11-07 20:33:53,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:33:53,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888834625] [2024-11-07 20:33:53,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:33:53,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:33:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:53,150 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 20:33:53,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:33:53,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888834625] [2024-11-07 20:33:53,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888834625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:33:53,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:33:53,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 20:33:53,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840391911] [2024-11-07 20:33:53,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:33:53,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 20:33:53,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:33:53,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 20:33:53,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 20:33:53,172 INFO L87 Difference]: Start difference. First operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 20:33:53,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:33:53,220 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2024-11-07 20:33:53,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 20:33:53,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-07 20:33:53,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:33:53,225 INFO L225 Difference]: With dead ends: 38 [2024-11-07 20:33:53,225 INFO L226 Difference]: Without dead ends: 13 [2024-11-07 20:33:53,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 20:33:53,228 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 20 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 20:33:53,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 28 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 20:33:53,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-07 20:33:53,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-07 20:33:53,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 20:33:53,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-07 20:33:53,249 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2024-11-07 20:33:53,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:33:53,249 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-07 20:33:53,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 20:33:53,250 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-07 20:33:53,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-07 20:33:53,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:33:53,250 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 20:33:53,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 20:33:53,250 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 20:33:53,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:33:53,251 INFO L85 PathProgramCache]: Analyzing trace with hash 28695749, now seen corresponding path program 1 times [2024-11-07 20:33:53,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:33:53,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158933825] [2024-11-07 20:33:53,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:33:53,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:33:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:53,285 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 20:33:53,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:33:53,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158933825] [2024-11-07 20:33:53,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158933825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:33:53,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:33:53,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 20:33:53,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610381639] [2024-11-07 20:33:53,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:33:53,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 20:33:53,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:33:53,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 20:33:53,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 20:33:53,287 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 20:33:53,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:33:53,306 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2024-11-07 20:33:53,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 20:33:53,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-07 20:33:53,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:33:53,307 INFO L225 Difference]: With dead ends: 18 [2024-11-07 20:33:53,307 INFO L226 Difference]: Without dead ends: 17 [2024-11-07 20:33:53,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 20:33:53,308 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 20:33:53,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 20:33:53,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-07 20:33:53,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2024-11-07 20:33:53,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 20:33:53,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-11-07 20:33:53,312 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2024-11-07 20:33:53,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:33:53,313 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-11-07 20:33:53,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 20:33:53,313 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-11-07 20:33:53,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-07 20:33:53,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:33:53,313 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:33:53,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 20:33:53,314 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 20:33:53,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:33:53,314 INFO L85 PathProgramCache]: Analyzing trace with hash 610940254, now seen corresponding path program 1 times [2024-11-07 20:33:53,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:33:53,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580413186] [2024-11-07 20:33:53,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:33:53,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:33:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:53,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 20:33:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:53,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:33:53,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:33:53,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580413186] [2024-11-07 20:33:53,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580413186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 20:33:53,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484024105] [2024-11-07 20:33:53,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:33:53,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:33:53,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:33:53,435 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 20:33:53,436 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 20:33:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:53,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 20:33:53,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:33:53,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:33:53,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:33:53,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:33:53,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484024105] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 20:33:53,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 20:33:53,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 9 [2024-11-07 20:33:53,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978645595] [2024-11-07 20:33:53,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 20:33:53,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 20:33:53,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:33:53,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 20:33:53,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-07 20:33:53,582 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 20:33:53,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:33:53,710 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2024-11-07 20:33:53,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 20:33:53,710 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 15 [2024-11-07 20:33:53,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:33:53,712 INFO L225 Difference]: With dead ends: 47 [2024-11-07 20:33:53,712 INFO L226 Difference]: Without dead ends: 46 [2024-11-07 20:33:53,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-07 20:33:53,714 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 28 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:33:53,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 51 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:33:53,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-07 20:33:53,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-07 20:33:53,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 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 20:33:53,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2024-11-07 20:33:53,721 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 15 [2024-11-07 20:33:53,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:33:53,721 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2024-11-07 20:33:53,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 20:33:53,721 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2024-11-07 20:33:53,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-07 20:33:53,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:33:53,725 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-11-07 20:33:53,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 20:33:53,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:33:53,929 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 20:33:53,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:33:53,930 INFO L85 PathProgramCache]: Analyzing trace with hash -529761367, now seen corresponding path program 2 times [2024-11-07 20:33:53,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:33:53,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111292829] [2024-11-07 20:33:53,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:33:53,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:33:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:54,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 20:33:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:54,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 20:33:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:54,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 20:33:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:54,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 20:33:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-07 20:33:54,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:33:54,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111292829] [2024-11-07 20:33:54,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111292829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 20:33:54,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151065965] [2024-11-07 20:33:54,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 20:33:54,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:33:54,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:33:54,161 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 20:33:54,167 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 20:33:54,225 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 20:33:54,226 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 20:33:54,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 20:33:54,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:33:54,285 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 20:33:54,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:33:54,435 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-07 20:33:54,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151065965] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 20:33:54,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 20:33:54,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 21 [2024-11-07 20:33:54,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785190894] [2024-11-07 20:33:54,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 20:33:54,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 20:33:54,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:33:54,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 20:33:54,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-07 20:33:54,437 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-07 20:33:54,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:33:54,802 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2024-11-07 20:33:54,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-07 20:33:54,802 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 45 [2024-11-07 20:33:54,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:33:54,804 INFO L225 Difference]: With dead ends: 107 [2024-11-07 20:33:54,805 INFO L226 Difference]: Without dead ends: 106 [2024-11-07 20:33:54,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2024-11-07 20:33:54,806 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 85 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:33:54,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 105 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:33:54,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-07 20:33:54,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-07 20:33:54,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-07 20:33:54,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2024-11-07 20:33:54,822 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 45 [2024-11-07 20:33:54,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:33:54,823 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2024-11-07 20:33:54,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-07 20:33:54,823 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2024-11-07 20:33:54,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-07 20:33:54,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:33:54,826 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2024-11-07 20:33:54,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 20:33:55,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:33:55,027 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 20:33:55,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:33:55,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1153550209, now seen corresponding path program 3 times [2024-11-07 20:33:55,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:33:55,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702968998] [2024-11-07 20:33:55,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:33:55,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:33:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:55,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 20:33:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:55,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 20:33:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:55,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 20:33:55,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:55,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-07 20:33:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:55,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 20:33:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:55,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 20:33:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:55,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 20:33:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:55,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 20:33:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:55,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 20:33:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:55,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 20:33:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:33:55,662 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-07 20:33:55,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:33:55,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702968998] [2024-11-07 20:33:55,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702968998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 20:33:55,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242558083] [2024-11-07 20:33:55,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 20:33:55,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:33:55,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:33:55,666 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 20:33:55,667 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 20:33:55,714 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 20:33:55,714 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 20:33:55,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 20:33:55,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:33:55,783 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2024-11-07 20:33:55,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:33:55,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242558083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:33:55,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 20:33:55,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [23] total 26 [2024-11-07 20:33:55,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235113543] [2024-11-07 20:33:55,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:33:55,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 20:33:55,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:33:55,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 20:33:55,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2024-11-07 20:33:55,784 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:33:55,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:33:55,836 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2024-11-07 20:33:55,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 20:33:55,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 105 [2024-11-07 20:33:55,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:33:55,837 INFO L225 Difference]: With dead ends: 106 [2024-11-07 20:33:55,837 INFO L226 Difference]: Without dead ends: 0 [2024-11-07 20:33:55,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2024-11-07 20:33:55,838 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 20:33:55,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 19 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 20:33:55,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-07 20:33:55,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-07 20:33:55,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 20:33:55,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-07 20:33:55,842 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2024-11-07 20:33:55,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:33:55,842 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-07 20:33:55,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:33:55,842 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-07 20:33:55,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-07 20:33:55,844 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-07 20:33:55,844 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-07 20:33:55,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 20:33:56,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:33:56,047 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-11-07 20:33:56,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-07 20:33:56,180 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 20:33:56,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:33:56 BoogieIcfgContainer [2024-11-07 20:33:56,191 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 20:33:56,191 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 20:33:56,191 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 20:33:56,192 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 20:33:56,192 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:33:52" (3/4) ... [2024-11-07 20:33:56,193 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 20:33:56,197 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-07 20:33:56,201 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-07 20:33:56,201 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-07 20:33:56,202 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-07 20:33:56,202 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-07 20:33:56,248 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 20:33:56,248 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 20:33:56,248 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 20:33:56,249 INFO L158 Benchmark]: Toolchain (without parser) took 3604.83ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 85.2MB in the beginning and 81.5MB in the end (delta: 3.7MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-11-07 20:33:56,249 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 48.1MB in the end (delta: 82.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 20:33:56,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 121.64ms. Allocated memory is still 109.1MB. Free memory was 85.1MB in the beginning and 74.3MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 20:33:56,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.05ms. Allocated memory is still 109.1MB. Free memory was 74.3MB in the beginning and 73.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 20:33:56,250 INFO L158 Benchmark]: Boogie Preprocessor took 17.68ms. Allocated memory is still 109.1MB. Free memory was 73.1MB in the beginning and 72.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 20:33:56,250 INFO L158 Benchmark]: RCFGBuilder took 156.85ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 62.2MB in the end (delta: 9.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 20:33:56,250 INFO L158 Benchmark]: TraceAbstraction took 3229.57ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 61.7MB in the beginning and 86.0MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 20:33:56,250 INFO L158 Benchmark]: Witness Printer took 57.12ms. Allocated memory is still 134.2MB. Free memory was 86.0MB in the beginning and 81.5MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 20:33:56,251 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 48.1MB in the end (delta: 82.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 121.64ms. Allocated memory is still 109.1MB. Free memory was 85.1MB in the beginning and 74.3MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.05ms. Allocated memory is still 109.1MB. Free memory was 74.3MB in the beginning and 73.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.68ms. Allocated memory is still 109.1MB. Free memory was 73.1MB in the beginning and 72.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 156.85ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 62.2MB in the end (delta: 9.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3229.57ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 61.7MB in the beginning and 86.0MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.12ms. Allocated memory is still 134.2MB. Free memory was 86.0MB in the beginning and 81.5MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 5, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 227 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 177 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 192 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 50 mSDtfsCounter, 192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 320 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=4, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 339 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 821 SizeOfPredicates, 13 NumberOfNonLiveVariables, 249 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 708/1185 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((0 <= counter) && (counter <= 20)) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (0 <= counter) Ensures: ((0 <= counter) && (counter == \old(counter))) RESULT: Ultimate proved your program to be correct! [2024-11-07 20:33:56,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE