./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 13:40:20,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 13:40:20,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 13:40:20,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 13:40:20,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 13:40:20,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 13:40:20,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 13:40:20,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 13:40:20,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 13:40:20,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 13:40:20,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 13:40:20,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 13:40:20,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 13:40:20,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 13:40:20,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 13:40:20,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 13:40:20,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 13:40:20,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 13:40:20,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 13:40:20,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 13:40:20,920 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 13:40:20,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 13:40:20,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 13:40:20,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 13:40:20,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 13:40:20,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 13:40:20,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 13:40:20,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 13:40:20,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 13:40:20,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 13:40:20,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 13:40:20,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 13:40:20,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 13:40:20,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 13:40:20,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 13:40:20,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 13:40:20,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 13:40:20,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 13:40:20,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 13:40:20,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 13:40:20,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 13:40:20,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 13:40:20,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-14 13:40:20,964 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 13:40:20,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 13:40:20,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 13:40:20,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 13:40:20,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 13:40:20,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 13:40:20,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 13:40:20,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 13:40:20,975 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 13:40:20,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 13:40:20,976 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 13:40:20,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 13:40:20,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 13:40:20,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 13:40:20,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 13:40:20,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 13:40:20,977 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 13:40:20,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 13:40:20,977 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 13:40:20,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 13:40:20,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 13:40:20,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 13:40:20,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 13:40:20,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:40:20,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 13:40:20,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 13:40:20,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 13:40:20,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 13:40:20,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 13:40:20,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 13:40:20,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2022-07-14 13:40:21,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 13:40:21,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 13:40:21,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 13:40:21,181 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 13:40:21,182 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 13:40:21,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-07-14 13:40:21,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8f590e8/cfa3e77fe85a428fa06ad9eb75e15720/FLAG59b64c0a8 [2022-07-14 13:40:21,644 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 13:40:21,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-07-14 13:40:21,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8f590e8/cfa3e77fe85a428fa06ad9eb75e15720/FLAG59b64c0a8 [2022-07-14 13:40:21,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8f590e8/cfa3e77fe85a428fa06ad9eb75e15720 [2022-07-14 13:40:21,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 13:40:21,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 13:40:21,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 13:40:21,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 13:40:21,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 13:40:21,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:40:21" (1/1) ... [2022-07-14 13:40:21,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbf0b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21, skipping insertion in model container [2022-07-14 13:40:21,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:40:21" (1/1) ... [2022-07-14 13:40:21,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 13:40:21,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 13:40:21,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:40:21,805 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 13:40:21,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:40:21,821 INFO L208 MainTranslator]: Completed translation [2022-07-14 13:40:21,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21 WrapperNode [2022-07-14 13:40:21,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 13:40:21,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 13:40:21,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 13:40:21,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 13:40:21,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21" (1/1) ... [2022-07-14 13:40:21,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21" (1/1) ... [2022-07-14 13:40:21,840 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-07-14 13:40:21,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 13:40:21,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 13:40:21,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 13:40:21,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 13:40:21,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21" (1/1) ... [2022-07-14 13:40:21,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21" (1/1) ... [2022-07-14 13:40:21,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21" (1/1) ... [2022-07-14 13:40:21,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21" (1/1) ... [2022-07-14 13:40:21,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21" (1/1) ... [2022-07-14 13:40:21,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21" (1/1) ... [2022-07-14 13:40:21,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21" (1/1) ... [2022-07-14 13:40:21,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 13:40:21,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 13:40:21,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 13:40:21,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 13:40:21,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21" (1/1) ... [2022-07-14 13:40:21,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:40:21,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:40:21,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 13:40:21,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 13:40:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 13:40:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 13:40:21,935 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 13:40:21,936 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 13:40:22,012 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 13:40:22,017 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 13:40:22,017 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 13:40:22,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:40:22 BoogieIcfgContainer [2022-07-14 13:40:22,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 13:40:22,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 13:40:22,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 13:40:22,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 13:40:22,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:40:21" (1/3) ... [2022-07-14 13:40:22,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15dd4960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:40:22, skipping insertion in model container [2022-07-14 13:40:22,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:40:21" (2/3) ... [2022-07-14 13:40:22,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15dd4960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:40:22, skipping insertion in model container [2022-07-14 13:40:22,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:40:22" (3/3) ... [2022-07-14 13:40:22,024 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-07-14 13:40:22,033 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 13:40:22,034 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-14 13:40:22,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 13:40:22,076 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@253dae7c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7a56bb01 [2022-07-14 13:40:22,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-14 13:40:22,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.75) internal successors, (28), 22 states have internal predecessors, (28), 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) [2022-07-14 13:40:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 13:40:22,094 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:40:22,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 13:40:22,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:40:22,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:40:22,104 INFO L85 PathProgramCache]: Analyzing trace with hash 28700682, now seen corresponding path program 1 times [2022-07-14 13:40:22,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:40:22,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667765778] [2022-07-14 13:40:22,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:40:22,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:40:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:40:22,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:22,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:40:22,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667765778] [2022-07-14 13:40:22,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667765778] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:40:22,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:40:22,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:40:22,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931449030] [2022-07-14 13:40:22,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:40:22,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:40:22,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:40:22,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:40:22,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:40:22,267 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.75) internal successors, (28), 22 states have internal predecessors, (28), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:40:22,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:40:22,342 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2022-07-14 13:40:22,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:40:22,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-14 13:40:22,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:40:22,349 INFO L225 Difference]: With dead ends: 61 [2022-07-14 13:40:22,363 INFO L226 Difference]: Without dead ends: 32 [2022-07-14 13:40:22,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:40:22,368 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 18 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:40:22,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 31 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:40:22,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-14 13:40:22,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2022-07-14 13:40:22,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 28 states have internal predecessors, (38), 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) [2022-07-14 13:40:22,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2022-07-14 13:40:22,407 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 5 [2022-07-14 13:40:22,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:40:22,407 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2022-07-14 13:40:22,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:40:22,408 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2022-07-14 13:40:22,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 13:40:22,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:40:22,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 13:40:22,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 13:40:22,409 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:40:22,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:40:22,411 INFO L85 PathProgramCache]: Analyzing trace with hash 889721220, now seen corresponding path program 1 times [2022-07-14 13:40:22,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:40:22,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489313267] [2022-07-14 13:40:22,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:40:22,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:40:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:40:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:22,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:40:22,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489313267] [2022-07-14 13:40:22,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489313267] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:40:22,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:40:22,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:40:22,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827313054] [2022-07-14 13:40:22,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:40:22,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:40:22,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:40:22,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:40:22,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:40:22,448 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-07-14 13:40:22,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:40:22,481 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2022-07-14 13:40:22,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:40:22,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-14 13:40:22,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:40:22,483 INFO L225 Difference]: With dead ends: 30 [2022-07-14 13:40:22,483 INFO L226 Difference]: Without dead ends: 28 [2022-07-14 13:40:22,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:40:22,484 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:40:22,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:40:22,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-14 13:40:22,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2022-07-14 13:40:22,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 26 states have internal predecessors, (35), 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) [2022-07-14 13:40:22,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-07-14 13:40:22,489 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 6 [2022-07-14 13:40:22,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:40:22,489 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-07-14 13:40:22,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-07-14 13:40:22,490 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2022-07-14 13:40:22,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 13:40:22,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:40:22,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:40:22,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 13:40:22,491 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:40:22,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:40:22,491 INFO L85 PathProgramCache]: Analyzing trace with hash 295990931, now seen corresponding path program 1 times [2022-07-14 13:40:22,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:40:22,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706021963] [2022-07-14 13:40:22,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:40:22,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:40:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:40:22,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:22,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:40:22,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706021963] [2022-07-14 13:40:22,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706021963] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:40:22,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:40:22,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:40:22,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771597508] [2022-07-14 13:40:22,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:40:22,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:40:22,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:40:22,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:40:22,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:40:22,546 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-07-14 13:40:22,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:40:22,587 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2022-07-14 13:40:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:40:22,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-14 13:40:22,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:40:22,589 INFO L225 Difference]: With dead ends: 46 [2022-07-14 13:40:22,590 INFO L226 Difference]: Without dead ends: 45 [2022-07-14 13:40:22,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:40:22,592 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 29 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:40:22,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 28 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:40:22,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-14 13:40:22,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 26. [2022-07-14 13:40:22,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.434782608695652) internal successors, (33), 25 states have internal predecessors, (33), 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) [2022-07-14 13:40:22,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-07-14 13:40:22,603 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 8 [2022-07-14 13:40:22,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:40:22,604 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-07-14 13:40:22,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-07-14 13:40:22,604 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-07-14 13:40:22,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 13:40:22,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:40:22,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:40:22,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 13:40:22,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:40:22,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:40:22,607 INFO L85 PathProgramCache]: Analyzing trace with hash 585784340, now seen corresponding path program 1 times [2022-07-14 13:40:22,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:40:22,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872340131] [2022-07-14 13:40:22,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:40:22,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:40:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:40:22,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:22,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:40:22,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872340131] [2022-07-14 13:40:22,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872340131] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:40:22,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:40:22,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:40:22,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867264155] [2022-07-14 13:40:22,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:40:22,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:40:22,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:40:22,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:40:22,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:40:22,630 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-07-14 13:40:22,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:40:22,645 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2022-07-14 13:40:22,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:40:22,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-14 13:40:22,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:40:22,648 INFO L225 Difference]: With dead ends: 33 [2022-07-14 13:40:22,648 INFO L226 Difference]: Without dead ends: 32 [2022-07-14 13:40:22,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:40:22,649 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:40:22,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:40:22,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-14 13:40:22,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2022-07-14 13:40:22,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 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) [2022-07-14 13:40:22,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2022-07-14 13:40:22,653 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 9 [2022-07-14 13:40:22,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:40:22,654 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-07-14 13:40:22,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-07-14 13:40:22,654 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2022-07-14 13:40:22,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-14 13:40:22,654 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:40:22,654 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:40:22,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 13:40:22,654 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:40:22,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:40:22,655 INFO L85 PathProgramCache]: Analyzing trace with hash 218441883, now seen corresponding path program 1 times [2022-07-14 13:40:22,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:40:22,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786455445] [2022-07-14 13:40:22,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:40:22,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:40:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:40:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:22,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:40:22,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786455445] [2022-07-14 13:40:22,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786455445] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:40:22,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018740284] [2022-07-14 13:40:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:40:22,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:40:22,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:40:22,706 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:40:22,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 13:40:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:40:22,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 13:40:22,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:40:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:22,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:40:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:22,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018740284] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:40:22,802 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:40:22,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-14 13:40:22,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019960976] [2022-07-14 13:40:22,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:40:22,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 13:40:22,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:40:22,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 13:40:22,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:40:22,804 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-07-14 13:40:22,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:40:22,864 INFO L93 Difference]: Finished difference Result 66 states and 88 transitions. [2022-07-14 13:40:22,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:40:22,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-14 13:40:22,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:40:22,866 INFO L225 Difference]: With dead ends: 66 [2022-07-14 13:40:22,866 INFO L226 Difference]: Without dead ends: 64 [2022-07-14 13:40:22,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:40:22,867 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 30 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:40:22,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 48 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:40:22,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-07-14 13:40:22,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 46. [2022-07-14 13:40:22,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 45 states have internal predecessors, (59), 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) [2022-07-14 13:40:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2022-07-14 13:40:22,877 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 13 [2022-07-14 13:40:22,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:40:22,877 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2022-07-14 13:40:22,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-07-14 13:40:22,877 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2022-07-14 13:40:22,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-14 13:40:22,878 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:40:22,878 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1] [2022-07-14 13:40:22,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 13:40:23,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:40:23,079 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:40:23,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:40:23,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1759159306, now seen corresponding path program 2 times [2022-07-14 13:40:23,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:40:23,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390867087] [2022-07-14 13:40:23,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:40:23,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:40:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:40:23,167 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:23,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:40:23,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390867087] [2022-07-14 13:40:23,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390867087] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:40:23,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166001993] [2022-07-14 13:40:23,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:40:23,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:40:23,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:40:23,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:40:23,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 13:40:23,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:40:23,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:40:23,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 13:40:23,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:40:23,228 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:23,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:40:23,292 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:23,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166001993] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:40:23,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:40:23,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-14 13:40:23,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122372506] [2022-07-14 13:40:23,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:40:23,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 13:40:23,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:40:23,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 13:40:23,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-14 13:40:23,294 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 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) [2022-07-14 13:40:23,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:40:23,381 INFO L93 Difference]: Finished difference Result 191 states and 260 transitions. [2022-07-14 13:40:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 13:40:23,381 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-07-14 13:40:23,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:40:23,390 INFO L225 Difference]: With dead ends: 191 [2022-07-14 13:40:23,390 INFO L226 Difference]: Without dead ends: 189 [2022-07-14 13:40:23,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-14 13:40:23,394 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 126 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:40:23,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 95 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:40:23,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-07-14 13:40:23,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 112. [2022-07-14 13:40:23,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 110 states have (on average 1.3) internal successors, (143), 111 states have internal predecessors, (143), 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) [2022-07-14 13:40:23,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 143 transitions. [2022-07-14 13:40:23,415 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 143 transitions. Word has length 28 [2022-07-14 13:40:23,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:40:23,416 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 143 transitions. [2022-07-14 13:40:23,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 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) [2022-07-14 13:40:23,416 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 143 transitions. [2022-07-14 13:40:23,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 13:40:23,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:40:23,420 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1, 1] [2022-07-14 13:40:23,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 13:40:23,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-14 13:40:23,636 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:40:23,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:40:23,636 INFO L85 PathProgramCache]: Analyzing trace with hash -830862358, now seen corresponding path program 3 times [2022-07-14 13:40:23,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:40:23,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520856663] [2022-07-14 13:40:23,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:40:23,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:40:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:40:23,760 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:23,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:40:23,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520856663] [2022-07-14 13:40:23,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520856663] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:40:23,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041348676] [2022-07-14 13:40:23,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 13:40:23,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:40:23,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:40:23,763 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:40:23,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 13:40:23,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-14 13:40:23,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:40:23,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 13:40:23,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:40:23,906 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:23,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:40:24,153 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:24,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041348676] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:40:24,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:40:24,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-14 13:40:24,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914531318] [2022-07-14 13:40:24,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:40:24,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-14 13:40:24,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:40:24,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-14 13:40:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-14 13:40:24,155 INFO L87 Difference]: Start difference. First operand 112 states and 143 transitions. Second operand has 24 states, 23 states have (on average 5.0) internal successors, (115), 24 states have internal predecessors, (115), 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) [2022-07-14 13:40:24,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:40:24,370 INFO L93 Difference]: Finished difference Result 599 states and 806 transitions. [2022-07-14 13:40:24,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-14 13:40:24,370 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.0) internal successors, (115), 24 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-07-14 13:40:24,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:40:24,372 INFO L225 Difference]: With dead ends: 599 [2022-07-14 13:40:24,372 INFO L226 Difference]: Without dead ends: 597 [2022-07-14 13:40:24,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-14 13:40:24,373 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 539 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 13:40:24,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 189 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 13:40:24,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-07-14 13:40:24,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 244. [2022-07-14 13:40:24,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 242 states have (on average 1.2851239669421488) internal successors, (311), 243 states have internal predecessors, (311), 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) [2022-07-14 13:40:24,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 311 transitions. [2022-07-14 13:40:24,389 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 311 transitions. Word has length 58 [2022-07-14 13:40:24,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:40:24,390 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 311 transitions. [2022-07-14 13:40:24,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.0) internal successors, (115), 24 states have internal predecessors, (115), 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) [2022-07-14 13:40:24,390 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 311 transitions. [2022-07-14 13:40:24,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-14 13:40:24,391 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:40:24,391 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1, 1] [2022-07-14 13:40:24,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 13:40:24,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:40:24,608 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:40:24,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:40:24,608 INFO L85 PathProgramCache]: Analyzing trace with hash -675691606, now seen corresponding path program 4 times [2022-07-14 13:40:24,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:40:24,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144201320] [2022-07-14 13:40:24,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:40:24,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:40:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:40:24,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:24,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:40:24,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144201320] [2022-07-14 13:40:24,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144201320] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:40:24,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300113222] [2022-07-14 13:40:24,929 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-14 13:40:24,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:40:24,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:40:24,930 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:40:24,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 13:40:24,982 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-14 13:40:24,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:40:24,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-14 13:40:24,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:40:25,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:25,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:40:25,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:25,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300113222] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:40:25,792 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:40:25,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-14 13:40:25,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255241851] [2022-07-14 13:40:25,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:40:25,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-14 13:40:25,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:40:25,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-14 13:40:25,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-14 13:40:25,794 INFO L87 Difference]: Start difference. First operand 244 states and 311 transitions. Second operand has 48 states, 47 states have (on average 5.0) internal successors, (235), 48 states have internal predecessors, (235), 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) [2022-07-14 13:40:26,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:40:26,262 INFO L93 Difference]: Finished difference Result 2009 states and 2654 transitions. [2022-07-14 13:40:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-14 13:40:26,263 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.0) internal successors, (235), 48 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-07-14 13:40:26,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:40:26,268 INFO L225 Difference]: With dead ends: 2009 [2022-07-14 13:40:26,268 INFO L226 Difference]: Without dead ends: 2007 [2022-07-14 13:40:26,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-14 13:40:26,270 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1196 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 13:40:26,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 383 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 13:40:26,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2022-07-14 13:40:26,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 508. [2022-07-14 13:40:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 506 states have (on average 1.2786561264822134) internal successors, (647), 507 states have internal predecessors, (647), 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) [2022-07-14 13:40:26,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 647 transitions. [2022-07-14 13:40:26,294 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 647 transitions. Word has length 118 [2022-07-14 13:40:26,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:40:26,294 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 647 transitions. [2022-07-14 13:40:26,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.0) internal successors, (235), 48 states have internal predecessors, (235), 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) [2022-07-14 13:40:26,295 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 647 transitions. [2022-07-14 13:40:26,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-14 13:40:26,297 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:40:26,297 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1, 1, 1] [2022-07-14 13:40:26,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 13:40:26,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:40:26,511 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:40:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:40:26,512 INFO L85 PathProgramCache]: Analyzing trace with hash 948228906, now seen corresponding path program 5 times [2022-07-14 13:40:26,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:40:26,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25168345] [2022-07-14 13:40:26,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:40:26,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:40:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:40:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:27,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:40:27,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25168345] [2022-07-14 13:40:27,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25168345] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:40:27,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479282655] [2022-07-14 13:40:27,382 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-14 13:40:27,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:40:27,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:40:27,383 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:40:27,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 13:40:27,487 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-14 13:40:27,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:40:27,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-14 13:40:27,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:40:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:27,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:40:29,843 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:29,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479282655] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:40:29,844 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:40:29,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-14 13:40:29,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497579722] [2022-07-14 13:40:29,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:40:29,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-14 13:40:29,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:40:29,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-14 13:40:29,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-14 13:40:29,850 INFO L87 Difference]: Start difference. First operand 508 states and 647 transitions. Second operand has 96 states, 95 states have (on average 5.0) internal successors, (475), 96 states have internal predecessors, (475), 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) [2022-07-14 13:40:32,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:40:32,141 INFO L93 Difference]: Finished difference Result 7205 states and 9374 transitions. [2022-07-14 13:40:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-14 13:40:32,141 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.0) internal successors, (475), 96 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2022-07-14 13:40:32,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:40:32,161 INFO L225 Difference]: With dead ends: 7205 [2022-07-14 13:40:32,162 INFO L226 Difference]: Without dead ends: 7203 [2022-07-14 13:40:32,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-14 13:40:32,166 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3091 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 486 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 13:40:32,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3091 Valid, 766 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [486 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 13:40:32,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7203 states. [2022-07-14 13:40:32,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7203 to 1036. [2022-07-14 13:40:32,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 1034 states have (on average 1.2756286266924566) internal successors, (1319), 1035 states have internal predecessors, (1319), 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) [2022-07-14 13:40:32,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1319 transitions. [2022-07-14 13:40:32,249 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1319 transitions. Word has length 238 [2022-07-14 13:40:32,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:40:32,249 INFO L495 AbstractCegarLoop]: Abstraction has 1036 states and 1319 transitions. [2022-07-14 13:40:32,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.0) internal successors, (475), 96 states have internal predecessors, (475), 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) [2022-07-14 13:40:32,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1319 transitions. [2022-07-14 13:40:32,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2022-07-14 13:40:32,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:40:32,256 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 1, 1, 1, 1, 1] [2022-07-14 13:40:32,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 13:40:32,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:40:32,471 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:40:32,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:40:32,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1047956950, now seen corresponding path program 6 times [2022-07-14 13:40:32,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:40:32,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136857658] [2022-07-14 13:40:32,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:40:32,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:40:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:40:35,265 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:35,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:40:35,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136857658] [2022-07-14 13:40:35,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136857658] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:40:35,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694151739] [2022-07-14 13:40:35,266 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-14 13:40:35,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:40:35,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:40:35,267 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:40:35,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 13:40:35,491 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-14 13:40:35,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:40:35,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-14 13:40:35,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:40:36,022 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:36,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:40:43,773 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:40:43,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694151739] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:40:43,775 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:40:43,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-14 13:40:43,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757760004] [2022-07-14 13:40:43,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:40:43,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-14 13:40:43,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:40:43,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-14 13:40:43,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-14 13:40:43,790 INFO L87 Difference]: Start difference. First operand 1036 states and 1319 transitions. Second operand has 192 states, 191 states have (on average 5.0) internal successors, (955), 192 states have internal predecessors, (955), 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) [2022-07-14 13:41:06,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:41:06,442 INFO L93 Difference]: Finished difference Result 27101 states and 34910 transitions. [2022-07-14 13:41:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-07-14 13:41:06,443 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.0) internal successors, (955), 192 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 478 [2022-07-14 13:41:06,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:41:06,504 INFO L225 Difference]: With dead ends: 27101 [2022-07-14 13:41:06,504 INFO L226 Difference]: Without dead ends: 27099 [2022-07-14 13:41:06,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 860 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-14 13:41:06,518 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7626 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 1117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7626 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 2268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1117 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-14 13:41:06,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7626 Valid, 1534 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1117 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-14 13:41:06,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27099 states. [2022-07-14 13:41:06,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27099 to 2092. [2022-07-14 13:41:06,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2092 states, 2090 states have (on average 1.2741626794258374) internal successors, (2663), 2091 states have internal predecessors, (2663), 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) [2022-07-14 13:41:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2663 transitions. [2022-07-14 13:41:06,721 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2663 transitions. Word has length 478 [2022-07-14 13:41:06,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:41:06,722 INFO L495 AbstractCegarLoop]: Abstraction has 2092 states and 2663 transitions. [2022-07-14 13:41:06,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.0) internal successors, (955), 192 states have internal predecessors, (955), 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) [2022-07-14 13:41:06,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2663 transitions. [2022-07-14 13:41:06,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2022-07-14 13:41:06,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:41:06,740 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 190, 190, 1, 1, 1, 1, 1] [2022-07-14 13:41:06,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 13:41:06,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:41:06,955 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:41:06,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:41:06,956 INFO L85 PathProgramCache]: Analyzing trace with hash 592228394, now seen corresponding path program 7 times [2022-07-14 13:41:06,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:41:06,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950516254] [2022-07-14 13:41:06,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:41:06,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:41:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:41:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:41:17,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:41:17,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950516254] [2022-07-14 13:41:17,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950516254] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:41:17,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582690125] [2022-07-14 13:41:17,425 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-14 13:41:17,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:41:17,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:41:17,426 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:41:17,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 13:41:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:41:17,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 192 conjunts are in the unsatisfiable core [2022-07-14 13:41:17,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:41:18,643 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:41:18,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:41:48,289 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:41:48,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582690125] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:41:48,290 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:41:48,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-07-14 13:41:48,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887285953] [2022-07-14 13:41:48,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:41:48,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-07-14 13:41:48,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:41:48,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-07-14 13:41:48,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-07-14 13:41:48,313 INFO L87 Difference]: Start difference. First operand 2092 states and 2663 transitions. Second operand has 384 states, 383 states have (on average 5.0) internal successors, (1915), 384 states have internal predecessors, (1915), 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)