./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/loop-industry-pattern/aiob_4.c.v+cfa-reducer.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 7d18364cf74a7e83a7d0637d6dc5303d99591a287435332871b1650f13e39eb3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 15:21:04,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 15:21:04,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 15:21:04,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 15:21:04,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 15:21:04,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 15:21:04,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 15:21:04,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 15:21:04,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 15:21:04,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 15:21:04,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 15:21:04,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 15:21:04,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 15:21:04,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 15:21:04,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 15:21:04,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 15:21:04,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 15:21:04,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 15:21:04,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 15:21:04,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 15:21:04,946 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 15:21:04,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 15:21:04,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 15:21:04,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 15:21:04,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 15:21:04,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 15:21:04,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 15:21:04,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 15:21:04,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 15:21:04,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 15:21:04,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 15:21:04,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 15:21:04,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 15:21:04,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 15:21:04,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 15:21:04,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 15:21:04,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 15:21:04,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 15:21:04,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 15:21:04,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 15:21:04,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 15:21:04,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 15:21:04,963 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 15:21:04,986 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 15:21:04,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 15:21:04,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 15:21:04,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 15:21:04,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 15:21:04,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 15:21:04,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 15:21:04,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 15:21:04,992 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 15:21:04,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 15:21:04,993 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 15:21:04,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 15:21:04,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 15:21:04,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 15:21:04,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 15:21:04,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 15:21:05,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 15:21:05,003 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 15:21:05,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 15:21:05,004 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 15:21:05,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 15:21:05,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 15:21:05,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 15:21:05,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 15:21:05,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 15:21:05,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 15:21:05,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 15:21:05,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 15:21:05,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 15:21:05,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 15:21:05,006 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 15:21:05,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 15:21:05,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 15:21:05,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d18364cf74a7e83a7d0637d6dc5303d99591a287435332871b1650f13e39eb3 [2022-07-22 15:21:05,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 15:21:05,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 15:21:05,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 15:21:05,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 15:21:05,226 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 15:21:05,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2022-07-22 15:21:05,307 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e65cf7dbb/6b3e0563ca7c4226bb8276d29f9affe1/FLAG6d5e10d51 [2022-07-22 15:21:05,774 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 15:21:05,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2022-07-22 15:21:05,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e65cf7dbb/6b3e0563ca7c4226bb8276d29f9affe1/FLAG6d5e10d51 [2022-07-22 15:21:06,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e65cf7dbb/6b3e0563ca7c4226bb8276d29f9affe1 [2022-07-22 15:21:06,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 15:21:06,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 15:21:06,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 15:21:06,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 15:21:06,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 15:21:06,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:21:06" (1/1) ... [2022-07-22 15:21:06,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207aecd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06, skipping insertion in model container [2022-07-22 15:21:06,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:21:06" (1/1) ... [2022-07-22 15:21:06,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 15:21:06,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 15:21:06,401 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c[7920,7933] [2022-07-22 15:21:06,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 15:21:06,416 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 15:21:06,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c[7920,7933] [2022-07-22 15:21:06,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 15:21:06,507 INFO L208 MainTranslator]: Completed translation [2022-07-22 15:21:06,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06 WrapperNode [2022-07-22 15:21:06,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 15:21:06,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 15:21:06,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 15:21:06,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 15:21:06,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06" (1/1) ... [2022-07-22 15:21:06,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06" (1/1) ... [2022-07-22 15:21:06,562 INFO L137 Inliner]: procedures = 17, calls = 199, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 358 [2022-07-22 15:21:06,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 15:21:06,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 15:21:06,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 15:21:06,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 15:21:06,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06" (1/1) ... [2022-07-22 15:21:06,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06" (1/1) ... [2022-07-22 15:21:06,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06" (1/1) ... [2022-07-22 15:21:06,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06" (1/1) ... [2022-07-22 15:21:06,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06" (1/1) ... [2022-07-22 15:21:06,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06" (1/1) ... [2022-07-22 15:21:06,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06" (1/1) ... [2022-07-22 15:21:06,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 15:21:06,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 15:21:06,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 15:21:06,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 15:21:06,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06" (1/1) ... [2022-07-22 15:21:06,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 15:21:06,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 15:21:06,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 15:21:06,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 15:21:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 15:21:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2022-07-22 15:21:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 15:21:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 15:21:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 15:21:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 15:21:06,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 15:21:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 15:21:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 15:21:06,856 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 15:21:06,857 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 15:21:07,324 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 15:21:07,330 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 15:21:07,330 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 15:21:07,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:21:07 BoogieIcfgContainer [2022-07-22 15:21:07,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 15:21:07,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 15:21:07,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 15:21:07,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 15:21:07,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 03:21:06" (1/3) ... [2022-07-22 15:21:07,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34414936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:21:07, skipping insertion in model container [2022-07-22 15:21:07,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:21:06" (2/3) ... [2022-07-22 15:21:07,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34414936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:21:07, skipping insertion in model container [2022-07-22 15:21:07,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:21:07" (3/3) ... [2022-07-22 15:21:07,343 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+cfa-reducer.c [2022-07-22 15:21:07,355 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 15:21:07,355 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 15:21:07,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 15:21:07,408 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@285cc6f4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6268aab3 [2022-07-22 15:21:07,408 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 15:21:07,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 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) [2022-07-22 15:21:07,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-22 15:21:07,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:21:07,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:21:07,423 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 15:21:07,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:21:07,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1180906794, now seen corresponding path program 1 times [2022-07-22 15:21:07,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:21:07,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821256819] [2022-07-22 15:21:07,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:21:07,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:21:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:21:07,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:21:07,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:21:07,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821256819] [2022-07-22 15:21:07,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821256819] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:21:07,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:21:07,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 15:21:07,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723214933] [2022-07-22 15:21:07,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:21:07,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 15:21:07,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:21:07,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 15:21:07,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 15:21:07,817 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 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) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:07,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:21:07,863 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2022-07-22 15:21:07,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 15:21:07,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-22 15:21:07,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:21:07,871 INFO L225 Difference]: With dead ends: 30 [2022-07-22 15:21:07,872 INFO L226 Difference]: Without dead ends: 19 [2022-07-22 15:21:07,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 15:21:07,878 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 15 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:21:07,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 44 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:21:07,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-22 15:21:07,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2022-07-22 15:21:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-07-22 15:21:07,906 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2022-07-22 15:21:07,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:21:07,907 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-07-22 15:21:07,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:07,907 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-07-22 15:21:07,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-22 15:21:07,908 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:21:07,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:21:07,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 15:21:07,909 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 15:21:07,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:21:07,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1181383450, now seen corresponding path program 1 times [2022-07-22 15:21:07,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:21:07,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723098752] [2022-07-22 15:21:07,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:21:07,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:21:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:21:08,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:21:08,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:21:08,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723098752] [2022-07-22 15:21:08,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723098752] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:21:08,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:21:08,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 15:21:08,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370829994] [2022-07-22 15:21:08,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:21:08,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 15:21:08,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:21:08,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 15:21:08,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 15:21:08,073 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:08,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:21:08,109 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2022-07-22 15:21:08,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 15:21:08,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-22 15:21:08,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:21:08,110 INFO L225 Difference]: With dead ends: 30 [2022-07-22 15:21:08,110 INFO L226 Difference]: Without dead ends: 20 [2022-07-22 15:21:08,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 15:21:08,112 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:21:08,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:21:08,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-07-22 15:21:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2022-07-22 15:21:08,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:08,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-07-22 15:21:08,115 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2022-07-22 15:21:08,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:21:08,116 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-07-22 15:21:08,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:08,117 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-07-22 15:21:08,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-22 15:21:08,118 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:21:08,118 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:21:08,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 15:21:08,119 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 15:21:08,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:21:08,120 INFO L85 PathProgramCache]: Analyzing trace with hash -181774814, now seen corresponding path program 1 times [2022-07-22 15:21:08,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:21:08,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303506601] [2022-07-22 15:21:08,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:21:08,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:21:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:21:08,310 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:21:08,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:21:08,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303506601] [2022-07-22 15:21:08,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303506601] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 15:21:08,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588042710] [2022-07-22 15:21:08,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:21:08,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 15:21:08,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 15:21:08,319 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 15:21:08,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 15:21:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:21:08,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 15:21:08,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 15:21:08,629 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:21:08,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 15:21:08,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:21:08,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588042710] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 15:21:08,688 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 15:21:08,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-07-22 15:21:08,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108482276] [2022-07-22 15:21:08,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 15:21:08,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 15:21:08,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:21:08,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 15:21:08,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-22 15:21:08,696 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:08,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:21:08,891 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2022-07-22 15:21:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 15:21:08,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-22 15:21:08,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:21:08,893 INFO L225 Difference]: With dead ends: 49 [2022-07-22 15:21:08,893 INFO L226 Difference]: Without dead ends: 39 [2022-07-22 15:21:08,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-07-22 15:21:08,895 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 36 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:21:08,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 44 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:21:08,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-22 15:21:08,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2022-07-22 15:21:08,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:08,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-07-22 15:21:08,903 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 15 [2022-07-22 15:21:08,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:21:08,904 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-07-22 15:21:08,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:08,904 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-07-22 15:21:08,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-22 15:21:08,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:21:08,905 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-07-22 15:21:08,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 15:21:09,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 15:21:09,106 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 15:21:09,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:21:09,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1399161658, now seen corresponding path program 2 times [2022-07-22 15:21:09,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:21:09,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433601342] [2022-07-22 15:21:09,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:21:09,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:21:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:21:09,310 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:21:09,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:21:09,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433601342] [2022-07-22 15:21:09,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433601342] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 15:21:09,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850715867] [2022-07-22 15:21:09,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 15:21:09,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 15:21:09,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 15:21:09,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 15:21:09,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 15:21:09,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 15:21:09,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 15:21:09,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-22 15:21:09,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 15:21:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:21:09,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 15:21:09,811 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:21:09,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850715867] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 15:21:09,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 15:21:09,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-07-22 15:21:09,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231568968] [2022-07-22 15:21:09,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 15:21:09,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-22 15:21:09,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:21:09,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-22 15:21:09,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-07-22 15:21:09,820 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:10,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:21:10,406 INFO L93 Difference]: Finished difference Result 85 states and 93 transitions. [2022-07-22 15:21:10,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 15:21:10,407 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 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 33 [2022-07-22 15:21:10,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:21:10,408 INFO L225 Difference]: With dead ends: 85 [2022-07-22 15:21:10,408 INFO L226 Difference]: Without dead ends: 75 [2022-07-22 15:21:10,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2022-07-22 15:21:10,409 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 78 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 15:21:10,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 118 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 15:21:10,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-07-22 15:21:10,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 70. [2022-07-22 15:21:10,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 69 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:10,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2022-07-22 15:21:10,420 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 33 [2022-07-22 15:21:10,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:21:10,420 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2022-07-22 15:21:10,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:10,421 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2022-07-22 15:21:10,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-22 15:21:10,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:21:10,422 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-07-22 15:21:10,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 15:21:10,643 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,SelfDestructingSolverStorable3 [2022-07-22 15:21:10,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 15:21:10,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:21:10,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1756175210, now seen corresponding path program 3 times [2022-07-22 15:21:10,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:21:10,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273540130] [2022-07-22 15:21:10,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:21:10,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:21:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:21:10,937 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 20 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:21:10,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:21:10,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273540130] [2022-07-22 15:21:10,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273540130] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 15:21:10,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543836482] [2022-07-22 15:21:10,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 15:21:10,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 15:21:10,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 15:21:10,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 15:21:10,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 15:21:11,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-22 15:21:11,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 15:21:11,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-22 15:21:11,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 15:21:11,476 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 15:21:11,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 23 [2022-07-22 15:21:11,682 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 56 proven. 39 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-07-22 15:21:11,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 15:21:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 20 proven. 75 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-07-22 15:21:13,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543836482] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 15:21:13,094 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 15:21:13,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 26 [2022-07-22 15:21:13,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358165633] [2022-07-22 15:21:13,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 15:21:13,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-22 15:21:13,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:21:13,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-22 15:21:13,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2022-07-22 15:21:13,097 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand has 26 states, 26 states have (on average 3.8846153846153846) internal successors, (101), 26 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:14,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:21:14,408 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2022-07-22 15:21:14,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-22 15:21:14,410 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.8846153846153846) internal successors, (101), 26 states have internal predecessors, (101), 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 69 [2022-07-22 15:21:14,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:21:14,410 INFO L225 Difference]: With dead ends: 91 [2022-07-22 15:21:14,410 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 15:21:14,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 137 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=616, Invalid=2246, Unknown=0, NotChecked=0, Total=2862 [2022-07-22 15:21:14,413 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 341 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 15:21:14,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 241 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 501 Invalid, 0 Unknown, 64 Unchecked, 0.4s Time] [2022-07-22 15:21:14,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 15:21:14,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 15:21:14,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 15:21:14,414 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2022-07-22 15:21:14,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:21:14,414 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 15:21:14,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.8846153846153846) internal successors, (101), 26 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:21:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 15:21:14,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 15:21:14,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 15:21:14,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 15:21:14,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 15:21:14,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 15:21:14,865 INFO L899 garLoopResultBuilder]: For program point L161(lines 161 224) no Hoare annotation was computed. [2022-07-22 15:21:14,865 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 15:21:14,865 INFO L902 garLoopResultBuilder]: At program point L221(lines 133 225) the Hoare annotation is: true [2022-07-22 15:21:14,865 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 217) no Hoare annotation was computed. [2022-07-22 15:21:14,865 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 222) no Hoare annotation was computed. [2022-07-22 15:21:14,865 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 209) no Hoare annotation was computed. [2022-07-22 15:21:14,865 INFO L899 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2022-07-22 15:21:14,865 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 15:21:14,866 INFO L899 garLoopResultBuilder]: For program point L191(lines 191 210) no Hoare annotation was computed. [2022-07-22 15:21:14,866 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 15:21:14,866 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 15:21:14,866 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2022-07-22 15:21:14,866 INFO L895 garLoopResultBuilder]: At program point L216(lines 182 217) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~0#1| 1)) (.cse1 (= |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1| ~Id_MCDC_93~0)) (.cse2 (= (select (select |#memory_int| |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.base|) (+ |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset| 492)) 0))) (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) .cse0 (<= ~Id_MCDC_93~0 1) .cse1 .cse2) (and .cse0 (< (mod (+ ~Id_MCDC_93~0 4294967295) 4294967296) 42) (< (mod ~Id_MCDC_93~0 4294967296) 42) .cse1 .cse2))) [2022-07-22 15:21:14,866 INFO L895 garLoopResultBuilder]: At program point L204(lines 167 223) the Hoare annotation is: (let ((.cse0 (= (select (select |#memory_int| |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.base|) (+ |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset| 492)) 0))) (or (and (= |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1| 0) .cse0 (= ~Id_MCDC_93~0 0)) (and (< (mod ~Id_MCDC_93~0 4294967296) 42) (< (mod (+ |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1| 4294967295) 4294967296) 42) .cse0 (exists ((|ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset| Int)) (not (= (* (mod (+ |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1| 4294967295) 4294967296) 12) 492)))))) [2022-07-22 15:21:14,869 INFO L356 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-07-22 15:21:14,870 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 15:21:14,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 03:21:14 BoogieIcfgContainer [2022-07-22 15:21:14,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 15:21:14,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 15:21:14,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 15:21:14,894 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 15:21:14,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:21:07" (3/4) ... [2022-07-22 15:21:14,898 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 15:21:14,913 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-07-22 15:21:14,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-07-22 15:21:14,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-22 15:21:14,915 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 15:21:14,915 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 15:21:14,944 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((Id_MCDC_89__Id_MCDC_96 == 0 && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 == 0) || (((Id_MCDC_93 % 4294967296 < 42 && (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && (\exists ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset : int :: !((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 * 12 == 492))) [2022-07-22 15:21:15,051 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 15:21:15,051 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 15:21:15,052 INFO L158 Benchmark]: Toolchain (without parser) took 8874.35ms. Allocated memory was 83.9MB in the beginning and 146.8MB in the end (delta: 62.9MB). Free memory was 48.1MB in the beginning and 71.0MB in the end (delta: -22.9MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2022-07-22 15:21:15,052 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 65.0MB. Free memory was 37.0MB in the beginning and 37.0MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 15:21:15,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.05ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 53.7MB in the end (delta: -5.8MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-07-22 15:21:15,053 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.84ms. Allocated memory is still 83.9MB. Free memory was 53.7MB in the beginning and 50.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 15:21:15,053 INFO L158 Benchmark]: Boogie Preprocessor took 50.32ms. Allocated memory is still 83.9MB. Free memory was 50.3MB in the beginning and 47.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 15:21:15,053 INFO L158 Benchmark]: RCFGBuilder took 718.07ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 47.3MB in the beginning and 69.9MB in the end (delta: -22.6MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-07-22 15:21:15,054 INFO L158 Benchmark]: TraceAbstraction took 7556.69ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 69.2MB in the beginning and 82.5MB in the end (delta: -13.3MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. [2022-07-22 15:21:15,054 INFO L158 Benchmark]: Witness Printer took 157.63ms. Allocated memory is still 146.8MB. Free memory was 82.5MB in the beginning and 71.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 15:21:15,056 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 65.0MB. Free memory was 37.0MB in the beginning and 37.0MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.05ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 53.7MB in the end (delta: -5.8MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.84ms. Allocated memory is still 83.9MB. Free memory was 53.7MB in the beginning and 50.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.32ms. Allocated memory is still 83.9MB. Free memory was 50.3MB in the beginning and 47.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 718.07ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 47.3MB in the beginning and 69.9MB in the end (delta: -22.6MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7556.69ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 69.2MB in the beginning and 82.5MB in the end (delta: -13.3MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. * Witness Printer took 157.63ms. Allocated memory is still 146.8MB. Free memory was 82.5MB in the beginning and 71.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 193]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.5s, OverallIterations: 5, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 479 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 479 mSDsluCounter, 468 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 64 IncrementalHoareTripleChecker+Unchecked, 389 mSDsCounter, 165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 734 IncrementalHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 165 mSolverCounterUnsat, 79 mSDtfsCounter, 734 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 224 SyntacticMatches, 4 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=4, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 31 NumberOfFragments, 106 HoareAnnotationTreeSize, 3 FomulaSimplifications, 858 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1228 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 252 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 358 ConstructedInterpolants, 59 QuantifiedInterpolants, 4152 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1741 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 576/1143 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_89____CPAchecker_TMP_1 == 1) && Id_MCDC_93 <= 1) && Id_MCDC_89__Id_MCDC_96 == Id_MCDC_93) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) || ((((Id_MCDC_89____CPAchecker_TMP_1 == 1 && (Id_MCDC_93 + 4294967295) % 4294967296 < 42) && Id_MCDC_93 % 4294967296 < 42) && Id_MCDC_89__Id_MCDC_96 == Id_MCDC_93) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: ((Id_MCDC_89__Id_MCDC_96 == 0 && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 == 0) || (((Id_MCDC_93 % 4294967296 < 42 && (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && (\exists ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset : int :: !((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 * 12 == 492))) RESULT: Ultimate proved your program to be correct! [2022-07-22 15:21:15,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE