./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ssina.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e8d55036 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/array-fpi/ssina.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c9ca6c94ff0fae82185b19014fc033eef7a37c04f3b092e10c4eebb38e41241 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 19:17:13,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 19:17:13,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 19:17:13,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 19:17:13,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 19:17:13,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 19:17:13,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 19:17:13,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 19:17:13,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 19:17:13,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 19:17:13,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 19:17:13,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 19:17:13,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 19:17:13,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 19:17:13,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 19:17:13,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 19:17:13,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 19:17:13,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 19:17:13,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 19:17:13,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 19:17:13,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 19:17:13,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 19:17:13,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 19:17:13,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 19:17:13,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 19:17:13,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 19:17:13,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 19:17:13,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 19:17:13,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 19:17:13,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 19:17:13,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 19:17:13,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 19:17:13,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 19:17:13,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 19:17:13,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 19:17:13,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 19:17:13,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 19:17:13,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 19:17:13,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 19:17:13,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 19:17:13,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 19:17:13,959 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 19:17:13,986 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 19:17:13,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 19:17:13,987 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 19:17:13,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 19:17:13,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 19:17:13,992 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 19:17:13,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 19:17:13,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 19:17:13,993 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 19:17:13,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 19:17:13,994 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 19:17:13,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 19:17:13,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 19:17:13,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 19:17:13,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 19:17:13,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 19:17:13,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 19:17:13,995 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 19:17:13,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 19:17:13,995 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 19:17:13,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 19:17:13,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 19:17:13,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 19:17:13,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 19:17:13,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 19:17:13,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 19:17:13,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 19:17:13,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 19:17:13,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 19:17:13,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 19:17:13,997 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 19:17:13,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 19:17:13,998 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 19:17:13,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 19:17:13,998 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 19:17:13,998 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c9ca6c94ff0fae82185b19014fc033eef7a37c04f3b092e10c4eebb38e41241 [2023-02-15 19:17:14,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 19:17:14,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 19:17:14,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 19:17:14,230 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 19:17:14,230 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 19:17:14,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ssina.c [2023-02-15 19:17:15,236 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 19:17:15,380 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 19:17:15,380 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ssina.c [2023-02-15 19:17:15,384 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/449fed3e5/0a73c57ed6704ebd9e2b4636c2621ed8/FLAG1a1465b75 [2023-02-15 19:17:15,395 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/449fed3e5/0a73c57ed6704ebd9e2b4636c2621ed8 [2023-02-15 19:17:15,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 19:17:15,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 19:17:15,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 19:17:15,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 19:17:15,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 19:17:15,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7195f4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15, skipping insertion in model container [2023-02-15 19:17:15,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 19:17:15,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 19:17:15,500 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ssina.c[588,601] [2023-02-15 19:17:15,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 19:17:15,519 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 19:17:15,527 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ssina.c[588,601] [2023-02-15 19:17:15,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 19:17:15,542 INFO L208 MainTranslator]: Completed translation [2023-02-15 19:17:15,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15 WrapperNode [2023-02-15 19:17:15,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 19:17:15,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 19:17:15,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 19:17:15,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 19:17:15,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,567 INFO L138 Inliner]: procedures = 17, calls = 37, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 119 [2023-02-15 19:17:15,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 19:17:15,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 19:17:15,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 19:17:15,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 19:17:15,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,608 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 19:17:15,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 19:17:15,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 19:17:15,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 19:17:15,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15" (1/1) ... [2023-02-15 19:17:15,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 19:17:15,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:17:15,649 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) [2023-02-15 19:17:15,669 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 [2023-02-15 19:17:15,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 19:17:15,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 19:17:15,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-15 19:17:15,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 19:17:15,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 19:17:15,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 19:17:15,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 19:17:15,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 19:17:15,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 19:17:15,745 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 19:17:15,747 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 19:17:15,955 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 19:17:15,959 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 19:17:15,960 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2023-02-15 19:17:15,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 07:17:15 BoogieIcfgContainer [2023-02-15 19:17:15,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 19:17:15,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 19:17:15,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 19:17:15,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 19:17:15,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 07:17:15" (1/3) ... [2023-02-15 19:17:15,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb09267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 07:17:15, skipping insertion in model container [2023-02-15 19:17:15,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:17:15" (2/3) ... [2023-02-15 19:17:15,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb09267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 07:17:15, skipping insertion in model container [2023-02-15 19:17:15,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 07:17:15" (3/3) ... [2023-02-15 19:17:15,967 INFO L112 eAbstractionObserver]: Analyzing ICFG ssina.c [2023-02-15 19:17:15,979 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 19:17:15,980 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 19:17:16,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 19:17:16,038 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=PETRI_NET, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a5472bc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 19:17:16,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 19:17:16,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 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) [2023-02-15 19:17:16,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 19:17:16,046 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:17:16,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:17:16,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:17:16,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:17:16,053 INFO L85 PathProgramCache]: Analyzing trace with hash -635308358, now seen corresponding path program 1 times [2023-02-15 19:17:16,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:17:16,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060833594] [2023-02-15 19:17:16,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:17:16,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:17:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:17:16,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:17:16,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060833594] [2023-02-15 19:17:16,182 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-15 19:17:16,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327887213] [2023-02-15 19:17:16,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:17:16,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:17:16,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:17:16,185 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) [2023-02-15 19:17:16,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 19:17:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:17:16,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-15 19:17:16,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:17:16,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:17:16,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 19:17:16,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327887213] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:17:16,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:17:16,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 19:17:16,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248281123] [2023-02-15 19:17:16,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:17:16,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 19:17:16,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:17:16,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 19:17:16,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 19:17:16,291 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 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 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2023-02-15 19:17:16,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:17:16,303 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2023-02-15 19:17:16,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 19:17:16,305 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2023-02-15 19:17:16,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:17:16,310 INFO L225 Difference]: With dead ends: 56 [2023-02-15 19:17:16,310 INFO L226 Difference]: Without dead ends: 26 [2023-02-15 19:17:16,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 19:17:16,315 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:17:16,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:17:16,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-15 19:17:16,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-02-15 19:17:16,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 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) [2023-02-15 19:17:16,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2023-02-15 19:17:16,338 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 18 [2023-02-15 19:17:16,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:17:16,338 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-02-15 19:17:16,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2023-02-15 19:17:16,339 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-02-15 19:17:16,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 19:17:16,339 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:17:16,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:17:16,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 19:17:16,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-15 19:17:16,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:17:16,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:17:16,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1344199344, now seen corresponding path program 1 times [2023-02-15 19:17:16,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:17:16,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221931663] [2023-02-15 19:17:16,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:17:16,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:17:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:17:16,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:17:16,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221931663] [2023-02-15 19:17:16,601 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-15 19:17:16,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644669851] [2023-02-15 19:17:16,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:17:16,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:17:16,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:17:16,605 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) [2023-02-15 19:17:16,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 19:17:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:17:16,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 19:17:16,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:17:16,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:17:16,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 19:17:16,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644669851] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:17:16,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:17:16,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 19:17:16,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122384860] [2023-02-15 19:17:16,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:17:16,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 19:17:16,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:17:16,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 19:17:16,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 19:17:16,755 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-02-15 19:17:16,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:17:16,816 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2023-02-15 19:17:16,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 19:17:16,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2023-02-15 19:17:16,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:17:16,817 INFO L225 Difference]: With dead ends: 61 [2023-02-15 19:17:16,817 INFO L226 Difference]: Without dead ends: 42 [2023-02-15 19:17:16,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 19:17:16,818 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 52 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:17:16,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 18 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:17:16,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-15 19:17:16,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2023-02-15 19:17:16,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 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) [2023-02-15 19:17:16,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-02-15 19:17:16,828 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 18 [2023-02-15 19:17:16,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:17:16,828 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-02-15 19:17:16,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-02-15 19:17:16,828 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-02-15 19:17:16,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 19:17:16,830 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:17:16,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:17:16,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 19:17:17,034 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,SelfDestructingSolverStorable1 [2023-02-15 19:17:17,035 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:17:17,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:17:17,036 INFO L85 PathProgramCache]: Analyzing trace with hash -933126362, now seen corresponding path program 1 times [2023-02-15 19:17:17,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:17:17,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926580286] [2023-02-15 19:17:17,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:17:17,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:17:17,088 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:17:17,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1413404033] [2023-02-15 19:17:17,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:17:17,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:17:17,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:17:17,093 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) [2023-02-15 19:17:17,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 19:17:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:17:17,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 57 conjunts are in the unsatisfiable core [2023-02-15 19:17:17,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:17:17,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 19:17:17,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-15 19:17:17,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-02-15 19:17:17,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2023-02-15 19:17:17,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2023-02-15 19:17:17,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2023-02-15 19:17:17,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2023-02-15 19:17:17,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 23 [2023-02-15 19:17:17,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2023-02-15 19:17:17,732 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:17:17,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:17:19,384 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:17:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:17:19,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:17:19,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926580286] [2023-02-15 19:17:19,454 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:17:19,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413404033] [2023-02-15 19:17:19,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413404033] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:17:19,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:17:19,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2023-02-15 19:17:19,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543333004] [2023-02-15 19:17:19,454 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:17:19,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-15 19:17:19,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:17:19,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-15 19:17:19,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2023-02-15 19:17:19,461 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 32 states, 32 states have (on average 1.65625) internal successors, (53), 32 states have internal predecessors, (53), 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) [2023-02-15 19:17:26,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:17:26,375 INFO L93 Difference]: Finished difference Result 80 states and 93 transitions. [2023-02-15 19:17:26,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-02-15 19:17:26,376 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.65625) internal successors, (53), 32 states have internal predecessors, (53), 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 [2023-02-15 19:17:26,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:17:26,380 INFO L225 Difference]: With dead ends: 80 [2023-02-15 19:17:26,382 INFO L226 Difference]: Without dead ends: 78 [2023-02-15 19:17:26,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=367, Invalid=2389, Unknown=0, NotChecked=0, Total=2756 [2023-02-15 19:17:26,386 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 103 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-02-15 19:17:26,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 176 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-02-15 19:17:26,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-02-15 19:17:26,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 54. [2023-02-15 19:17:26,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 53 states have internal predecessors, (65), 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) [2023-02-15 19:17:26,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2023-02-15 19:17:26,428 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 28 [2023-02-15 19:17:26,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:17:26,428 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2023-02-15 19:17:26,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.65625) internal successors, (53), 32 states have internal predecessors, (53), 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) [2023-02-15 19:17:26,428 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2023-02-15 19:17:26,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-15 19:17:26,429 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:17:26,429 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:17:26,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-15 19:17:26,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:17:26,635 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:17:26,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:17:26,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1642466588, now seen corresponding path program 2 times [2023-02-15 19:17:26,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:17:26,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215880635] [2023-02-15 19:17:26,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:17:26,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:17:26,654 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:17:26,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766225023] [2023-02-15 19:17:26,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 19:17:26,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:17:26,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:17:26,656 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) [2023-02-15 19:17:26,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 19:17:26,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 19:17:26,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:17:26,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 19:17:26,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:17:26,785 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 19:17:26,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:17:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 19:17:26,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:17:26,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215880635] [2023-02-15 19:17:26,818 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:17:26,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766225023] [2023-02-15 19:17:26,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766225023] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:17:26,818 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:17:26,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-02-15 19:17:26,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833312139] [2023-02-15 19:17:26,819 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:17:26,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 19:17:26,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:17:26,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 19:17:26,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-02-15 19:17:26,820 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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) [2023-02-15 19:17:26,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:17:26,952 INFO L93 Difference]: Finished difference Result 126 states and 148 transitions. [2023-02-15 19:17:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 19:17:26,952 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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 30 [2023-02-15 19:17:26,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:17:26,953 INFO L225 Difference]: With dead ends: 126 [2023-02-15 19:17:26,953 INFO L226 Difference]: Without dead ends: 78 [2023-02-15 19:17:26,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-02-15 19:17:26,954 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 71 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:17:26,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 54 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:17:26,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-02-15 19:17:26,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 56. [2023-02-15 19:17:26,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 55 states have internal predecessors, (65), 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) [2023-02-15 19:17:26,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2023-02-15 19:17:26,962 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 30 [2023-02-15 19:17:26,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:17:26,962 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2023-02-15 19:17:26,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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) [2023-02-15 19:17:26,963 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2023-02-15 19:17:26,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-15 19:17:26,963 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:17:26,963 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:17:26,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 19:17:27,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:17:27,168 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:17:27,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:17:27,169 INFO L85 PathProgramCache]: Analyzing trace with hash -396360796, now seen corresponding path program 3 times [2023-02-15 19:17:27,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:17:27,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116315901] [2023-02-15 19:17:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:17:27,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:17:27,183 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:17:27,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202209339] [2023-02-15 19:17:27,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 19:17:27,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:17:27,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:17:27,191 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) [2023-02-15 19:17:27,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 19:17:27,281 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-15 19:17:27,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:17:27,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 19:17:27,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:17:27,333 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 19:17:27,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:17:27,371 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 19:17:27,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:17:27,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116315901] [2023-02-15 19:17:27,371 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:17:27,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202209339] [2023-02-15 19:17:27,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202209339] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:17:27,372 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:17:27,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-02-15 19:17:27,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878276348] [2023-02-15 19:17:27,373 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:17:27,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 19:17:27,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:17:27,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 19:17:27,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-02-15 19:17:27,376 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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) [2023-02-15 19:17:27,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:17:27,492 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2023-02-15 19:17:27,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 19:17:27,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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 30 [2023-02-15 19:17:27,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:17:27,494 INFO L225 Difference]: With dead ends: 74 [2023-02-15 19:17:27,494 INFO L226 Difference]: Without dead ends: 57 [2023-02-15 19:17:27,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-02-15 19:17:27,496 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 89 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:17:27,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 40 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:17:27,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-15 19:17:27,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 41. [2023-02-15 19:17:27,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.15) internal successors, (46), 40 states have internal predecessors, (46), 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) [2023-02-15 19:17:27,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2023-02-15 19:17:27,508 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 30 [2023-02-15 19:17:27,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:17:27,509 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2023-02-15 19:17:27,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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) [2023-02-15 19:17:27,509 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2023-02-15 19:17:27,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-15 19:17:27,512 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:17:27,512 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:17:27,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-15 19:17:27,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:17:27,719 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 19:17:27,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:17:27,720 INFO L85 PathProgramCache]: Analyzing trace with hash 389318684, now seen corresponding path program 4 times [2023-02-15 19:17:27,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:17:27,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480000169] [2023-02-15 19:17:27,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:17:27,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:17:27,748 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 19:17:27,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948445068] [2023-02-15 19:17:27,748 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 19:17:27,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:17:27,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:17:27,749 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) [2023-02-15 19:17:27,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 19:17:27,826 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 19:17:27,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 19:17:27,828 WARN L261 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 94 conjunts are in the unsatisfiable core [2023-02-15 19:17:27,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:17:27,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 19:17:27,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-15 19:17:27,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-02-15 19:17:27,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2023-02-15 19:17:28,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:28,074 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2023-02-15 19:17:28,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 53 [2023-02-15 19:17:28,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:28,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:28,172 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2023-02-15 19:17:28,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 60 [2023-02-15 19:17:28,389 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:17:28,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:28,391 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:17:28,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:28,392 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:17:28,407 INFO L321 Elim1Store]: treesize reduction 48, result has 22.6 percent of original size [2023-02-15 19:17:28,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 72 treesize of output 81 [2023-02-15 19:17:28,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:28,525 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:17:28,531 INFO L321 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2023-02-15 19:17:28,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 57 [2023-02-15 19:17:28,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:28,620 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-02-15 19:17:28,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 35 [2023-02-15 19:17:28,677 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:17:28,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:28,691 INFO L321 Elim1Store]: treesize reduction 59, result has 24.4 percent of original size [2023-02-15 19:17:28,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 46 [2023-02-15 19:17:28,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:28,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2023-02-15 19:17:28,922 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:17:28,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:28,936 INFO L321 Elim1Store]: treesize reduction 34, result has 24.4 percent of original size [2023-02-15 19:17:28,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 59 treesize of output 53 [2023-02-15 19:17:29,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:29,031 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:17:29,033 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-15 19:17:29,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-02-15 19:17:29,235 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:17:29,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 41 [2023-02-15 19:17:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:17:29,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:17:41,711 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:17:41,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:41,713 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:17:41,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:17:41,720 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-15 19:17:41,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 1 [2023-02-15 19:17:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:17:41,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:17:41,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480000169] [2023-02-15 19:17:41,721 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 19:17:41,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948445068] [2023-02-15 19:17:41,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948445068] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:17:41,721 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 19:17:41,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 59 [2023-02-15 19:17:41,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072657270] [2023-02-15 19:17:41,722 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 19:17:41,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-02-15 19:17:41,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:17:41,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-02-15 19:17:41,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=401, Invalid=3021, Unknown=0, NotChecked=0, Total=3422 [2023-02-15 19:17:41,725 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 59 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 59 states have internal predecessors, (73), 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) [2023-02-15 19:18:16,009 WARN L233 SmtUtils]: Spent 23.36s on a formula simplification that was a NOOP. DAG size: 191 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 19:18:18,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:21,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:23,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:25,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:27,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:29,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:31,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:33,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:35,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:37,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:39,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:40,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:42,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-02-15 19:18:54,524 WARN L233 SmtUtils]: Spent 7.55s on a formula simplification. DAG size of input: 140 DAG size of output: 139 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 19:19:17,097 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse82 (* |c_ULTIMATE.start_main_~i~0#1| 8))) (let ((.cse26 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse23 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse71 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse82))) (let ((.cse29 (select .cse23 .cse71)) (.cse30 (select .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse81 (+ .cse29 .cse30))) (let ((.cse37 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse81)) |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse24 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse82 8))) (let ((.cse49 (select .cse37 .cse24))) (let ((.cse35 (store .cse23 .cse71 .cse81)) (.cse54 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse29 .cse30 .cse49))))) (let ((.cse36 (select .cse23 .cse24)) (.cse45 (select .cse23 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse56 (select .cse54 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse35))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse48 (select .cse56 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (not (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) c_~N~0))) (.cse8 (< (+ |c_ULTIMATE.start_main_~i~0#1| 2) c_~N~0)) (.cse9 (<= c_~N~0 1)) (.cse47 (+ .cse30 .cse45)) (.cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) (.cse57 (+ .cse30 .cse36)) (.cse6 (+ (* 2 c_~N~0) (* c_~N~0 c_~N~0) 1)) (.cse0 (< 2 c_~N~0))) (and (or .cse0 (= (let ((.cse1 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse4 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ .cse1 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse4))) .cse6)) (or .cse7 .cse8 .cse0 .cse9 (= (let ((.cse11 (let ((.cse22 (store .cse23 .cse24 1))) (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse22))) (let ((.cse21 (select .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse18 (select .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse19 (select .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse17 (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse19))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (let ((.cse14 (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse18 .cse19))))) (store .cse14 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse16 (select .cse14 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse15 (store .cse16 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse17 .cse18 (select .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse19)))) (store .cse15 .cse5 (+ (select (select (store .cse14 |c_ULTIMATE.start_main_~a~0#1.base| .cse15) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse16 .cse5)))))))))))))) (let ((.cse12 (select .cse11 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse10 (select (select (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse12 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse13 (select (select (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse12 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse10)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ .cse10 (select (select (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse12 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse10 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse13))))) .cse6)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= 0 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (or (= (let ((.cse27 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse27)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ .cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse25 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse27))) .cse6) .cse0) (exists ((|v_ULTIMATE.start_main_~i~0#1_74| Int)) (let ((.cse28 (* |v_ULTIMATE.start_main_~i~0#1_74| 8))) (and (= (select .cse23 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse28 (- 8))) 1) (<= 1 |v_ULTIMATE.start_main_~i~0#1_74|) (< |v_ULTIMATE.start_main_~i~0#1_74| c_~N~0) (<= c_~N~0 (+ |v_ULTIMATE.start_main_~i~0#1_74| 1)) (= (select .cse23 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse28)) 1)))) (or .cse8 (forall ((v_ArrVal_256 Int)) (= (select (store .cse23 .cse24 v_ArrVal_256) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse6))) (= .cse29 .cse30) (= |c_ULTIMATE.start_main_~i~0#1| 0) (or (= (let ((.cse31 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse35 .cse24 (+ .cse36 (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (let ((.cse32 (select .cse31 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse34 (select (select (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse32 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse33 (select (select (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse32 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse34)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ (select (select (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse32 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse33 .cse34))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse33 .cse34))))) .cse6) .cse0) (or .cse0 (= (+ .cse30 .cse29 (select .cse37 |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse6)) (not (= |c_ULTIMATE.start_main_~a~0#1.base| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (or .cse8 (forall ((v_ArrVal_256 Int)) (= (select (store .cse35 .cse24 v_ArrVal_256) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse6))) (or .cse0 .cse9 (= (let ((.cse39 (let ((.cse46 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse47)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (let ((.cse42 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse30 .cse45 .cse46))))) (store .cse42 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse44 (select .cse42 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse43 (store .cse44 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse30 (select .cse44 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse45 .cse46)))) (store .cse43 .cse5 (+ (select .cse44 .cse5) (select (select (store .cse42 |c_ULTIMATE.start_main_~a~0#1.base| .cse43) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))))))) (let ((.cse40 (select .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse41 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse38 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse41)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ .cse38 (select (select (store .cse39 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse41))))) .cse6)) (or .cse0 (= (+ .cse30 .cse29 .cse48 .cse49) .cse6)) (or .cse7 .cse8 .cse0 (= (let ((.cse51 (store .cse54 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse55 (store .cse56 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse29 .cse30 .cse48 .cse49)))) (store .cse55 .cse5 (+ (select (select (store .cse54 |c_ULTIMATE.start_main_~a~0#1.base| .cse55) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse56 .cse5))))))) (let ((.cse52 (select .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse50 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse53 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse50)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ .cse50 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse50 .cse53))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse53))))) .cse6)) (or .cse0 (= (+ .cse30 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse57)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse36) .cse6)) (or .cse7 .cse8 .cse0 .cse9 (= (let ((.cse58 (let ((.cse70 (store (store .cse23 .cse71 1) .cse24 1))) (let ((.cse68 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse70))) (let ((.cse69 (select .cse68 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse65 (select .cse70 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse66 (select .cse69 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse67 (select (select (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse65 .cse66))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (let ((.cse62 (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse65 .cse66 .cse67))))) (store .cse62 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse64 (select .cse62 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse63 (store .cse64 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse65 (select .cse64 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse66 .cse67)))) (store .cse63 .cse5 (+ (select .cse64 .cse5) (select (select (store .cse62 |c_ULTIMATE.start_main_~a~0#1.base| .cse63) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))))))))))) (let ((.cse59 (select .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse60 (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse61 (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse60)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse60 .cse61))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse60 .cse61))))) .cse6)) (or .cse0 (= (let ((.cse73 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse76 (store .cse23 |c_ULTIMATE.start_main_~a~0#1.offset| .cse47))) (store .cse76 .cse5 (+ (select .cse23 .cse5) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse76) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))))) (let ((.cse74 (select .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse72 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse75 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse72)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ .cse72 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse72 .cse75))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse75))))) .cse6)) (or .cse0 (= .cse47 .cse6)) (or (= (let ((.cse79 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse23 .cse24 .cse57)))) (let ((.cse80 (select .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse78 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| 0)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse77 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse78)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (+ .cse77 .cse78 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse77 .cse78))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))))) .cse6) .cse0))))))))))) is different from true [2023-02-15 19:19:46,178 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 274 DAG size of output: 50 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)