./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/verifythis/elimination_max_rec.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/verifythis/elimination_max_rec.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', '1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a'] 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/verifythis/elimination_max_rec.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 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 21:00:34,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 21:00:34,373 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 21:00:34,378 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 21:00:34,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 21:00:34,407 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 21:00:34,408 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 21:00:34,410 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 21:00:34,411 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 21:00:34,411 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 21:00:34,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 21:00:34,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 21:00:34,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 21:00:34,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 21:00:34,411 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 21:00:34,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 21:00:34,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 21:00:34,411 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 21:00:34,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 21:00:34,411 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 21:00:34,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 21:00:34,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 21:00:34,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 21:00:34,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 21:00:34,412 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 21:00:34,413 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 21:00:34,413 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 21:00:34,413 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 -> 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a [2024-11-07 21:00:34,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 21:00:34,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 21:00:34,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 21:00:34,726 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 21:00:34,726 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 21:00:34,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec.c [2024-11-07 21:00:35,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 21:00:36,080 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 21:00:36,082 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2024-11-07 21:00:36,087 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1dcf7255e/7cc66fd7d712432ea55dbc0e14d3ec94/FLAGc054253a4 [2024-11-07 21:00:36,470 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1dcf7255e/7cc66fd7d712432ea55dbc0e14d3ec94 [2024-11-07 21:00:36,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 21:00:36,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 21:00:36,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 21:00:36,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 21:00:36,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 21:00:36,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4424c7ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36, skipping insertion in model container [2024-11-07 21:00:36,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,496 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 21:00:36,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 21:00:36,642 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 21:00:36,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 21:00:36,677 INFO L204 MainTranslator]: Completed translation [2024-11-07 21:00:36,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36 WrapperNode [2024-11-07 21:00:36,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 21:00:36,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 21:00:36,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 21:00:36,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 21:00:36,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,696 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 33 [2024-11-07 21:00:36,697 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 21:00:36,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 21:00:36,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 21:00:36,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 21:00:36,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,709 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,721 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-07 21:00:36,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 21:00:36,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 21:00:36,736 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 21:00:36,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 21:00:36,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (1/1) ... [2024-11-07 21:00:36,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 21:00:36,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 21:00:36,762 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 21:00:36,764 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 21:00:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 21:00:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 21:00:36,783 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 21:00:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 21:00:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 21:00:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure check [2024-11-07 21:00:36,783 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2024-11-07 21:00:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 21:00:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 21:00:36,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 21:00:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 21:00:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 21:00:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 21:00:36,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 21:00:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 21:00:36,855 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 21:00:36,856 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 21:00:36,954 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-07 21:00:36,954 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 21:00:36,960 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 21:00:36,960 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 21:00:36,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:00:36 BoogieIcfgContainer [2024-11-07 21:00:36,960 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 21:00:36,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 21:00:36,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 21:00:36,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 21:00:36,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:00:36" (1/3) ... [2024-11-07 21:00:36,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aac65ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:00:36, skipping insertion in model container [2024-11-07 21:00:36,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:00:36" (2/3) ... [2024-11-07 21:00:36,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aac65ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:00:36, skipping insertion in model container [2024-11-07 21:00:36,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:00:36" (3/3) ... [2024-11-07 21:00:36,967 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_max_rec.c [2024-11-07 21:00:36,976 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 21:00:36,976 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-07 21:00:37,013 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 21:00:37,023 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;@7a58d8fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 21:00:37,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-07 21:00:37,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 34 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-07 21:00:37,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-07 21:00:37,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:00:37,031 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 21:00:37,032 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 21:00:37,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:00:37,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1445398111, now seen corresponding path program 1 times [2024-11-07 21:00:37,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:00:37,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932351461] [2024-11-07 21:00:37,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:37,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:00:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:00:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,136 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 21:00:37,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:00:37,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932351461] [2024-11-07 21:00:37,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932351461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 21:00:37,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 21:00:37,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 21:00:37,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541705860] [2024-11-07 21:00:37,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 21:00:37,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 21:00:37,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:00:37,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 21:00:37,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 21:00:37,153 INFO L87 Difference]: Start difference. First operand has 44 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 34 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 21:00:37,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:00:37,169 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2024-11-07 21:00:37,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 21:00:37,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) Word has length 10 [2024-11-07 21:00:37,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:00:37,173 INFO L225 Difference]: With dead ends: 84 [2024-11-07 21:00:37,173 INFO L226 Difference]: Without dead ends: 32 [2024-11-07 21:00:37,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 21:00:37,180 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 21:00:37,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 21:00:37,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-07 21:00:37,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-07 21:00:37,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.35) internal successors, (27), 26 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 21:00:37,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2024-11-07 21:00:37,204 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 10 [2024-11-07 21:00:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:00:37,204 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2024-11-07 21:00:37,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 21:00:37,204 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2024-11-07 21:00:37,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-07 21:00:37,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:00:37,205 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 21:00:37,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 21:00:37,205 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 21:00:37,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:00:37,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1502656413, now seen corresponding path program 1 times [2024-11-07 21:00:37,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:00:37,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066006063] [2024-11-07 21:00:37,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:37,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:00:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:00:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,352 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 21:00:37,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:00:37,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066006063] [2024-11-07 21:00:37,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066006063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 21:00:37,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 21:00:37,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 21:00:37,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94120321] [2024-11-07 21:00:37,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 21:00:37,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 21:00:37,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:00:37,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 21:00:37,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 21:00:37,357 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 21:00:37,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:00:37,380 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2024-11-07 21:00:37,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 21:00:37,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) Word has length 10 [2024-11-07 21:00:37,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:00:37,381 INFO L225 Difference]: With dead ends: 32 [2024-11-07 21:00:37,381 INFO L226 Difference]: Without dead ends: 30 [2024-11-07 21:00:37,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 21:00:37,382 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 2 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 21:00:37,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 97 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 21:00:37,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-07 21:00:37,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-07 21:00:37,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.25) internal successors, (25), 24 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 21:00:37,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2024-11-07 21:00:37,385 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 10 [2024-11-07 21:00:37,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:00:37,385 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2024-11-07 21:00:37,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 21:00:37,385 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2024-11-07 21:00:37,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-07 21:00:37,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:00:37,386 INFO L215 NwaCegarLoop]: trace histogram [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 21:00:37,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 21:00:37,386 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 21:00:37,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:00:37,387 INFO L85 PathProgramCache]: Analyzing trace with hash -209049016, now seen corresponding path program 1 times [2024-11-07 21:00:37,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:00:37,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226151184] [2024-11-07 21:00:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:37,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:00:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:00:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 21:00:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,471 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 21:00:37,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:00:37,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226151184] [2024-11-07 21:00:37,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226151184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 21:00:37,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 21:00:37,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 21:00:37,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241575265] [2024-11-07 21:00:37,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 21:00:37,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 21:00:37,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:00:37,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 21:00:37,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 21:00:37,473 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 21:00:37,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:00:37,545 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2024-11-07 21:00:37,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 21:00:37,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2024-11-07 21:00:37,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:00:37,546 INFO L225 Difference]: With dead ends: 45 [2024-11-07 21:00:37,546 INFO L226 Difference]: Without dead ends: 43 [2024-11-07 21:00:37,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 21:00:37,550 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 17 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 21:00:37,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 100 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 21:00:37,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-07 21:00:37,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2024-11-07 21:00:37,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 32 states have internal predecessors, (36), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 21:00:37,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2024-11-07 21:00:37,559 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 22 [2024-11-07 21:00:37,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:00:37,559 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2024-11-07 21:00:37,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 21:00:37,560 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2024-11-07 21:00:37,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-07 21:00:37,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:00:37,560 INFO L215 NwaCegarLoop]: trace histogram [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 21:00:37,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 21:00:37,560 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 21:00:37,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:00:37,561 INFO L85 PathProgramCache]: Analyzing trace with hash -209048824, now seen corresponding path program 1 times [2024-11-07 21:00:37,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:00:37,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964273834] [2024-11-07 21:00:37,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:37,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:00:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:00:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 21:00:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,696 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 21:00:37,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:00:37,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964273834] [2024-11-07 21:00:37,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964273834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 21:00:37,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 21:00:37,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 21:00:37,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204379798] [2024-11-07 21:00:37,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 21:00:37,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 21:00:37,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:00:37,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 21:00:37,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 21:00:37,698 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 21:00:37,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:00:37,753 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2024-11-07 21:00:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 21:00:37,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2024-11-07 21:00:37,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:00:37,754 INFO L225 Difference]: With dead ends: 43 [2024-11-07 21:00:37,754 INFO L226 Difference]: Without dead ends: 42 [2024-11-07 21:00:37,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-07 21:00:37,755 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 21:00:37,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 142 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 21:00:37,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-07 21:00:37,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2024-11-07 21:00:37,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 21:00:37,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2024-11-07 21:00:37,759 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 22 [2024-11-07 21:00:37,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:00:37,759 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2024-11-07 21:00:37,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 21:00:37,759 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2024-11-07 21:00:37,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-07 21:00:37,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:00:37,760 INFO L215 NwaCegarLoop]: trace histogram [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 21:00:37,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 21:00:37,760 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 21:00:37,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:00:37,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2109421121, now seen corresponding path program 1 times [2024-11-07 21:00:37,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:00:37,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133471084] [2024-11-07 21:00:37,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:37,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:00:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:00:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 21:00:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,836 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 21:00:37,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:00:37,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133471084] [2024-11-07 21:00:37,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133471084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 21:00:37,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 21:00:37,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 21:00:37,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247076216] [2024-11-07 21:00:37,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 21:00:37,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 21:00:37,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:00:37,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 21:00:37,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 21:00:37,838 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 21:00:37,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:00:37,872 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2024-11-07 21:00:37,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 21:00:37,873 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-11-07 21:00:37,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:00:37,873 INFO L225 Difference]: With dead ends: 40 [2024-11-07 21:00:37,873 INFO L226 Difference]: Without dead ends: 39 [2024-11-07 21:00:37,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 21:00:37,874 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 21:00:37,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 80 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 21:00:37,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-07 21:00:37,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-07 21:00:37,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 31 states have internal predecessors, (33), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 21:00:37,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2024-11-07 21:00:37,878 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 23 [2024-11-07 21:00:37,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:00:37,878 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2024-11-07 21:00:37,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 21:00:37,878 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2024-11-07 21:00:37,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-07 21:00:37,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:00:37,879 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 21:00:37,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 21:00:37,879 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 21:00:37,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:00:37,879 INFO L85 PathProgramCache]: Analyzing trace with hash 767373436, now seen corresponding path program 1 times [2024-11-07 21:00:37,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:00:37,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019190575] [2024-11-07 21:00:37,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:37,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:00:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:00:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 21:00:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 21:00:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:37,979 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 21:00:37,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:00:37,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019190575] [2024-11-07 21:00:37,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019190575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 21:00:37,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195221313] [2024-11-07 21:00:37,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:37,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 21:00:37,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 21:00:37,982 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 21:00:37,983 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 21:00:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:38,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 21:00:38,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 21:00:38,095 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 21:00:38,095 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 21:00:38,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195221313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 21:00:38,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 21:00:38,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2024-11-07 21:00:38,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658004613] [2024-11-07 21:00:38,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 21:00:38,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 21:00:38,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:00:38,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 21:00:38,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-07 21:00:38,097 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 21:00:38,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:00:38,166 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2024-11-07 21:00:38,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 21:00:38,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2024-11-07 21:00:38,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:00:38,167 INFO L225 Difference]: With dead ends: 40 [2024-11-07 21:00:38,167 INFO L226 Difference]: Without dead ends: 39 [2024-11-07 21:00:38,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-07 21:00:38,168 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 28 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 21:00:38,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 126 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 21:00:38,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-07 21:00:38,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2024-11-07 21:00:38,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 30 states have internal predecessors, (32), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 21:00:38,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2024-11-07 21:00:38,171 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 34 [2024-11-07 21:00:38,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:00:38,172 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2024-11-07 21:00:38,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 21:00:38,172 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2024-11-07 21:00:38,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-07 21:00:38,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:00:38,173 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 21:00:38,185 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 21:00:38,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 21:00:38,377 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 21:00:38,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:00:38,378 INFO L85 PathProgramCache]: Analyzing trace with hash 767373628, now seen corresponding path program 1 times [2024-11-07 21:00:38,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:00:38,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694885745] [2024-11-07 21:00:38,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:38,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:00:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:38,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:00:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:38,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 21:00:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:38,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 21:00:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 21:00:38,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:00:38,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694885745] [2024-11-07 21:00:38,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694885745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 21:00:38,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493699614] [2024-11-07 21:00:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:38,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 21:00:38,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 21:00:38,519 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 21:00:38,520 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 21:00:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:38,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 21:00:38,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 21:00:38,653 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 21:00:38,653 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 21:00:38,775 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 21:00:38,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493699614] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 21:00:38,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 21:00:38,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 21 [2024-11-07 21:00:38,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454389689] [2024-11-07 21:00:38,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 21:00:38,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 21:00:38,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:00:38,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 21:00:38,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2024-11-07 21:00:38,778 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 22 states, 21 states have (on average 2.142857142857143) internal successors, (45), 16 states have internal predecessors, (45), 9 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-07 21:00:38,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:00:38,977 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2024-11-07 21:00:38,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 21:00:38,977 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.142857142857143) internal successors, (45), 16 states have internal predecessors, (45), 9 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 34 [2024-11-07 21:00:38,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:00:38,978 INFO L225 Difference]: With dead ends: 40 [2024-11-07 21:00:38,978 INFO L226 Difference]: Without dead ends: 39 [2024-11-07 21:00:38,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=900, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 21:00:38,979 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 87 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 21:00:38,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 177 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 21:00:38,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-07 21:00:38,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2024-11-07 21:00:38,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 29 states have internal predecessors, (31), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 21:00:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2024-11-07 21:00:38,984 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 34 [2024-11-07 21:00:38,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:00:38,984 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2024-11-07 21:00:38,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.142857142857143) internal successors, (45), 16 states have internal predecessors, (45), 9 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-07 21:00:38,984 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2024-11-07 21:00:38,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-07 21:00:38,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:00:38,985 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 21:00:38,997 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 21:00:39,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 21:00:39,190 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 21:00:39,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:00:39,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1981227193, now seen corresponding path program 1 times [2024-11-07 21:00:39,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:00:39,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168406484] [2024-11-07 21:00:39,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:39,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:00:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:39,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:00:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:39,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 21:00:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:39,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 21:00:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 21:00:39,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:00:39,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168406484] [2024-11-07 21:00:39,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168406484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 21:00:39,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545976130] [2024-11-07 21:00:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:39,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 21:00:39,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 21:00:39,333 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 21:00:39,336 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 21:00:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:39,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 21:00:39,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 21:00:39,431 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 21:00:39,431 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 21:00:39,514 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 21:00:39,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545976130] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 21:00:39,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 21:00:39,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-11-07 21:00:39,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820003558] [2024-11-07 21:00:39,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 21:00:39,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 21:00:39,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:00:39,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 21:00:39,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-07 21:00:39,517 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 17 states, 16 states have (on average 2.625) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (11), 6 states have call predecessors, (11), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-07 21:00:39,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:00:39,671 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2024-11-07 21:00:39,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 21:00:39,671 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.625) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (11), 6 states have call predecessors, (11), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 35 [2024-11-07 21:00:39,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:00:39,672 INFO L225 Difference]: With dead ends: 72 [2024-11-07 21:00:39,672 INFO L226 Difference]: Without dead ends: 71 [2024-11-07 21:00:39,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2024-11-07 21:00:39,673 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 69 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 21:00:39,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 183 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 21:00:39,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-07 21:00:39,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2024-11-07 21:00:39,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 53 states have internal predecessors, (58), 12 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-07 21:00:39,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 76 transitions. [2024-11-07 21:00:39,679 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 76 transitions. Word has length 35 [2024-11-07 21:00:39,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:00:39,679 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 76 transitions. [2024-11-07 21:00:39,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.625) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (11), 6 states have call predecessors, (11), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-07 21:00:39,680 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 76 transitions. [2024-11-07 21:00:39,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-07 21:00:39,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:00:39,681 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 21:00:39,693 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 21:00:39,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 21:00:39,882 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 21:00:39,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:00:39,882 INFO L85 PathProgramCache]: Analyzing trace with hash -910052309, now seen corresponding path program 2 times [2024-11-07 21:00:39,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:00:39,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442560144] [2024-11-07 21:00:39,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:39,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:00:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:40,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:00:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:40,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 21:00:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:40,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 21:00:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:40,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 21:00:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:40,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 21:00:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:40,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 21:00:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:40,150 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-07 21:00:40,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:00:40,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442560144] [2024-11-07 21:00:40,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442560144] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 21:00:40,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117686686] [2024-11-07 21:00:40,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 21:00:40,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 21:00:40,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 21:00:40,152 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 21:00:40,154 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 21:00:40,222 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 21:00:40,223 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 21:00:40,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-07 21:00:40,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 21:00:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-07 21:00:40,296 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 21:00:40,544 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-07 21:00:40,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117686686] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 21:00:40,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 21:00:40,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 34 [2024-11-07 21:00:40,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94168706] [2024-11-07 21:00:40,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 21:00:40,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-07 21:00:40,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:00:40,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-07 21:00:40,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190 [2024-11-07 21:00:40,546 INFO L87 Difference]: Start difference. First operand 67 states and 76 transitions. Second operand has 35 states, 34 states have (on average 2.2941176470588234) internal successors, (78), 24 states have internal predecessors, (78), 12 states have call successors, (23), 12 states have call predecessors, (23), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-07 21:00:41,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:00:41,032 INFO L93 Difference]: Finished difference Result 138 states and 164 transitions. [2024-11-07 21:00:41,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-07 21:00:41,032 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.2941176470588234) internal successors, (78), 24 states have internal predecessors, (78), 12 states have call successors, (23), 12 states have call predecessors, (23), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 71 [2024-11-07 21:00:41,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:00:41,034 INFO L225 Difference]: With dead ends: 138 [2024-11-07 21:00:41,035 INFO L226 Difference]: Without dead ends: 137 [2024-11-07 21:00:41,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1060 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=830, Invalid=3202, Unknown=0, NotChecked=0, Total=4032 [2024-11-07 21:00:41,037 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 240 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 21:00:41,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 272 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 21:00:41,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-07 21:00:41,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 127. [2024-11-07 21:00:41,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 100 states have (on average 1.12) internal successors, (112), 101 states have internal predecessors, (112), 24 states have call successors, (24), 13 states have call predecessors, (24), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-07 21:00:41,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 148 transitions. [2024-11-07 21:00:41,053 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 148 transitions. Word has length 71 [2024-11-07 21:00:41,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:00:41,053 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 148 transitions. [2024-11-07 21:00:41,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.2941176470588234) internal successors, (78), 24 states have internal predecessors, (78), 12 states have call successors, (23), 12 states have call predecessors, (23), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-07 21:00:41,054 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 148 transitions. [2024-11-07 21:00:41,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 21:00:41,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:00:41,060 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 21:00:41,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-07 21:00:41,264 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,SelfDestructingSolverStorable8 [2024-11-07 21:00:41,265 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 21:00:41,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:00:41,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1007192077, now seen corresponding path program 3 times [2024-11-07 21:00:41,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:00:41,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211529761] [2024-11-07 21:00:41,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:41,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:00:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:00:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 21:00:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 21:00:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 21:00:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 21:00:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 21:00:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 21:00:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 21:00:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 21:00:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 21:00:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-07 21:00:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 21:00:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:42,174 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-07 21:00:42,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:00:42,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211529761] [2024-11-07 21:00:42,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211529761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 21:00:42,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420286930] [2024-11-07 21:00:42,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 21:00:42,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 21:00:42,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 21:00:42,177 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 21:00:42,178 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 21:00:42,301 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-07 21:00:42,301 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 21:00:42,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-07 21:00:42,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 21:00:42,447 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-07 21:00:42,447 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 21:00:43,271 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-07 21:00:43,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420286930] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 21:00:43,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 21:00:43,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 70 [2024-11-07 21:00:43,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138175865] [2024-11-07 21:00:43,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 21:00:43,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-11-07 21:00:43,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:00:43,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-11-07 21:00:43,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=898, Invalid=4072, Unknown=0, NotChecked=0, Total=4970 [2024-11-07 21:00:43,275 INFO L87 Difference]: Start difference. First operand 127 states and 148 transitions. Second operand has 71 states, 70 states have (on average 2.142857142857143) internal successors, (150), 48 states have internal predecessors, (150), 24 states have call successors, (47), 24 states have call predecessors, (47), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 21:00:44,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:00:44,891 INFO L93 Difference]: Finished difference Result 270 states and 326 transitions. [2024-11-07 21:00:44,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-11-07 21:00:44,892 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 2.142857142857143) internal successors, (150), 48 states have internal predecessors, (150), 24 states have call successors, (47), 24 states have call predecessors, (47), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 143 [2024-11-07 21:00:44,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:00:44,893 INFO L225 Difference]: With dead ends: 270 [2024-11-07 21:00:44,893 INFO L226 Difference]: Without dead ends: 269 [2024-11-07 21:00:44,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5116 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=3662, Invalid=14698, Unknown=0, NotChecked=0, Total=18360 [2024-11-07 21:00:44,897 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 732 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 21:00:44,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 365 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 21:00:44,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-07 21:00:44,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 247. [2024-11-07 21:00:44,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 196 states have (on average 1.1224489795918366) internal successors, (220), 197 states have internal predecessors, (220), 48 states have call successors, (48), 25 states have call predecessors, (48), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 21:00:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 292 transitions. [2024-11-07 21:00:44,912 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 292 transitions. Word has length 143 [2024-11-07 21:00:44,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:00:44,912 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 292 transitions. [2024-11-07 21:00:44,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 2.142857142857143) internal successors, (150), 48 states have internal predecessors, (150), 24 states have call successors, (47), 24 states have call predecessors, (47), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 21:00:44,912 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 292 transitions. [2024-11-07 21:00:44,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-07 21:00:44,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 21:00:44,915 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 21:00:44,933 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 21:00:45,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-07 21:00:45,129 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 21:00:45,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 21:00:45,130 INFO L85 PathProgramCache]: Analyzing trace with hash 594503555, now seen corresponding path program 4 times [2024-11-07 21:00:45,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 21:00:45,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162756781] [2024-11-07 21:00:45,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 21:00:45,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 21:00:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 21:00:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 21:00:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 21:00:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 21:00:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 21:00:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 21:00:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 21:00:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 21:00:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 21:00:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 21:00:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-07 21:00:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 21:00:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-07 21:00:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-07 21:00:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-07 21:00:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-07 21:00:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-07 21:00:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-07 21:00:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-07 21:00:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-07 21:00:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-07 21:00:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-07 21:00:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-11-07 21:00:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-11-07 21:00:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 21:00:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3014 backedges. 0 proven. 2002 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-07 21:00:48,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 21:00:48,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162756781] [2024-11-07 21:00:48,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162756781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 21:00:48,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421960733] [2024-11-07 21:00:48,798 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 21:00:48,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 21:00:48,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 21:00:48,805 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 21:00:48,820 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 21:00:48,993 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 21:00:48,994 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 21:00:48,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 1141 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-07 21:00:49,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 21:00:49,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3014 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 2904 trivial. 0 not checked. [2024-11-07 21:00:49,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 21:00:49,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3014 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 2904 trivial. 0 not checked. [2024-11-07 21:00:49,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421960733] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 21:00:49,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 21:00:49,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 6, 6] total 80 [2024-11-07 21:00:49,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309166947] [2024-11-07 21:00:49,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 21:00:49,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2024-11-07 21:00:49,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 21:00:49,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2024-11-07 21:00:49,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1015, Invalid=5465, Unknown=0, NotChecked=0, Total=6480 [2024-11-07 21:00:49,753 INFO L87 Difference]: Start difference. First operand 247 states and 292 transitions. Second operand has 81 states, 80 states have (on average 2.275) internal successors, (182), 56 states have internal predecessors, (182), 30 states have call successors, (57), 26 states have call predecessors, (57), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-07 21:00:59,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 21:00:59,776 INFO L93 Difference]: Finished difference Result 545 states and 643 transitions. [2024-11-07 21:00:59,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 268 states. [2024-11-07 21:00:59,777 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 80 states have (on average 2.275) internal successors, (182), 56 states have internal predecessors, (182), 30 states have call successors, (57), 26 states have call predecessors, (57), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Word has length 287 [2024-11-07 21:00:59,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 21:00:59,778 INFO L225 Difference]: With dead ends: 545 [2024-11-07 21:00:59,778 INFO L226 Difference]: Without dead ends: 0 [2024-11-07 21:00:59,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 975 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 342 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40496 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=21775, Invalid=96217, Unknown=0, NotChecked=0, Total=117992 [2024-11-07 21:00:59,792 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 2091 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 21:00:59,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2091 Valid, 320 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 21:00:59,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-07 21:00:59,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-07 21:00:59,795 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 21:00:59,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-07 21:00:59,795 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 287 [2024-11-07 21:00:59,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 21:00:59,795 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-07 21:00:59,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 80 states have (on average 2.275) internal successors, (182), 56 states have internal predecessors, (182), 30 states have call successors, (57), 26 states have call predecessors, (57), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-07 21:00:59,796 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-07 21:00:59,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-07 21:00:59,798 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-07 21:00:59,798 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-07 21:00:59,798 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-07 21:00:59,798 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-07 21:00:59,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-07 21:00:59,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-07 21:00:59,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-07 21:01:00,000 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,SelfDestructingSolverStorable10 [2024-11-07 21:01:00,003 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 21:01:00,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-07 21:01:06,724 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 21:01:06,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:01:06 BoogieIcfgContainer [2024-11-07 21:01:06,738 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 21:01:06,739 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 21:01:06,740 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 21:01:06,740 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 21:01:06,740 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:00:36" (3/4) ... [2024-11-07 21:01:06,741 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 21:01:06,745 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-07 21:01:06,746 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2024-11-07 21:01:06,746 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-07 21:01:06,748 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-07 21:01:06,749 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-07 21:01:06,749 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-07 21:01:06,749 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-07 21:01:06,798 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 21:01:06,799 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 21:01:06,799 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 21:01:06,800 INFO L158 Benchmark]: Toolchain (without parser) took 30326.61ms. Allocated memory was 117.4MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 92.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 184.3MB. Max. memory is 16.1GB. [2024-11-07 21:01:06,800 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 117.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 21:01:06,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.88ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.8MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 21:01:06,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.22ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 21:01:06,801 INFO L158 Benchmark]: Boogie Preprocessor took 37.30ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 21:01:06,801 INFO L158 Benchmark]: RCFGBuilder took 224.77ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 66.6MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 21:01:06,801 INFO L158 Benchmark]: TraceAbstraction took 29776.69ms. Allocated memory was 117.4MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 66.0MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 908.1MB. Max. memory is 16.1GB. [2024-11-07 21:01:06,801 INFO L158 Benchmark]: Witness Printer took 59.40ms. Allocated memory is still 1.5GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 21:01:06,802 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 117.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.88ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.8MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.22ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.30ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 224.77ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 66.6MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 29776.69ms. Allocated memory was 117.4MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 66.0MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 908.1MB. Max. memory is 16.1GB. * Witness Printer took 59.40ms. Allocated memory is still 1.5GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 4.8MB). 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: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: 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 4 procedures, 44 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 23.0s, OverallIterations: 11, TraceHistogramMax: 23, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3302 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3302 mSDsluCounter, 1909 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1629 mSDsCounter, 357 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1531 IncrementalHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 357 mSolverCounterUnsat, 280 mSDtfsCounter, 1531 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1875 GetRequests, 1242 SyntacticMatches, 0 SemanticMatches, 633 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47053 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=10, InterpolantAutomatonStates: 464, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 44 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 1295 NumberOfCodeBlocks, 1295 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1843 ConstructedInterpolants, 0 QuantifiedInterpolants, 4075 SizeOfPredicates, 49 NumberOfNonLiveVariables, 2473 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 22 InterpolantComputations, 6 PerfectInterpolantSequences, 7642/11420 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 6 specifications checked. All of them hold - ProcedureContractResult [Line: 7]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) - ProcedureContractResult [Line: 16]: Procedure Contract for check Derived contract for procedure check. Requires: ((((1 <= y) && (1 <= x)) && (y <= 2147483646)) || ((y <= 2147483646) && (x == 0))) Ensures: ((((1 <= y) && (1 <= x)) && (y <= 2147483646)) || ((y <= 2147483646) && (x == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-07 21:01:06,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE