./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3dbbec33 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 20745b6559a0027241fed3a5cbed63a985f3358ae9d5e4871ad5e64eb23bcb25 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 14:27:05,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:27:05,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:27:05,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:27:05,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:27:05,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:27:05,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:27:05,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:27:05,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:27:05,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:27:05,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:27:05,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:27:05,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:27:05,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:27:05,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:27:05,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:27:05,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:27:05,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:27:05,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:27:05,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:27:05,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:27:05,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:27:05,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:27:05,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:27:05,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:27:05,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:27:05,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:27:05,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:27:05,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:27:05,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:27:05,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:27:05,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:27:05,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:27:05,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:27:05,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:27:05,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:27:05,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:27:05,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:27:05,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:27:05,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:27:05,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:27:05,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-14 14:27:06,023 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:27:06,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:27:06,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:27:06,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:27:06,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 14:27:06,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 14:27:06,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:27:06,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:27:06,026 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:27:06,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:27:06,027 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:27:06,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:27:06,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:27:06,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 14:27:06,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 14:27:06,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 14:27:06,028 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-14 14:27:06,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:27:06,029 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:27:06,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 14:27:06,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:27:06,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:27:06,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 14:27:06,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:27:06,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:27:06,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 14:27:06,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 14:27:06,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:27:06,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 14:27:06,031 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 14:27:06,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 14:27:06,031 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 14:27:06,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 14:27:06,032 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 14:27:06,032 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20745b6559a0027241fed3a5cbed63a985f3358ae9d5e4871ad5e64eb23bcb25 [2023-02-14 14:27:06,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:27:06,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:27:06,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:27:06,262 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:27:06,263 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:27:06,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c [2023-02-14 14:27:07,480 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:27:07,660 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:27:07,660 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c [2023-02-14 14:27:07,665 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba1a25467/4dba68acae6e4f408ed903904db88123/FLAGef88e00e6 [2023-02-14 14:27:07,680 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba1a25467/4dba68acae6e4f408ed903904db88123 [2023-02-14 14:27:07,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:27:07,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:27:07,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:27:07,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:27:07,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:27:07,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a61ad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07, skipping insertion in model container [2023-02-14 14:27:07,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:27:07,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:27:07,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:27:07,838 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:27:07,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:27:07,868 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:27:07,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07 WrapperNode [2023-02-14 14:27:07,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:27:07,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:27:07,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:27:07,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:27:07,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,898 INFO L138 Inliner]: procedures = 8, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2023-02-14 14:27:07,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:27:07,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:27:07,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:27:07,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:27:07,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,930 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:27:07,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:27:07,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:27:07,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:27:07,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07" (1/1) ... [2023-02-14 14:27:07,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:27:07,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:27:07,967 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) [2023-02-14 14:27:07,989 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 [2023-02-14 14:27:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-14 14:27:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:27:08,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:27:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-14 14:27:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-14 14:27:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-14 14:27:08,061 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:27:08,063 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:27:08,185 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:27:08,190 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:27:08,190 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-14 14:27:08,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:27:08 BoogieIcfgContainer [2023-02-14 14:27:08,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:27:08,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 14:27:08,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 14:27:08,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 14:27:08,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 02:27:07" (1/3) ... [2023-02-14 14:27:08,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202c07c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:27:08, skipping insertion in model container [2023-02-14 14:27:08,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:27:07" (2/3) ... [2023-02-14 14:27:08,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202c07c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:27:08, skipping insertion in model container [2023-02-14 14:27:08,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:27:08" (3/3) ... [2023-02-14 14:27:08,213 INFO L112 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c [2023-02-14 14:27:08,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 14:27:08,240 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-14 14:27:08,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 14:27:08,311 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;@5bee1e03, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 14:27:08,312 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-14 14:27:08,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 23 states have internal predecessors, (29), 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) [2023-02-14 14:27:08,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-14 14:27:08,321 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:27:08,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-14 14:27:08,322 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:27:08,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:27:08,326 INFO L85 PathProgramCache]: Analyzing trace with hash 889574220, now seen corresponding path program 1 times [2023-02-14 14:27:08,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:27:08,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842082472] [2023-02-14 14:27:08,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:27:08,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:27:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:27:08,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:27:08,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:27:08,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842082472] [2023-02-14 14:27:08,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842082472] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:27:08,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:27:08,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:27:08,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615993636] [2023-02-14 14:27:08,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:27:08,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:27:08,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:27:08,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:27:08,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:27:08,656 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 23 states have internal predecessors, (29), 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, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:27:08,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:27:08,714 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2023-02-14 14:27:08,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:27:08,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-14 14:27:08,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:27:08,723 INFO L225 Difference]: With dead ends: 60 [2023-02-14 14:27:08,723 INFO L226 Difference]: Without dead ends: 35 [2023-02-14 14:27:08,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:27:08,729 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 20 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:27:08,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 66 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:27:08,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-02-14 14:27:08,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 24. [2023-02-14 14:27:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 23 states have internal predecessors, (26), 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) [2023-02-14 14:27:08,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2023-02-14 14:27:08,791 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 6 [2023-02-14 14:27:08,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:27:08,791 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2023-02-14 14:27:08,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:27:08,792 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2023-02-14 14:27:08,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-14 14:27:08,792 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:27:08,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:27:08,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 14:27:08,795 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:27:08,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:27:08,797 INFO L85 PathProgramCache]: Analyzing trace with hash 180741427, now seen corresponding path program 1 times [2023-02-14 14:27:08,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:27:08,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607571907] [2023-02-14 14:27:08,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:27:08,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:27:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:27:08,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:27:08,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:27:08,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607571907] [2023-02-14 14:27:08,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607571907] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:27:08,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:27:08,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:27:08,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923876235] [2023-02-14 14:27:08,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:27:08,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:27:08,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:27:08,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:27:08,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:27:08,890 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:27:08,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:27:08,922 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2023-02-14 14:27:08,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:27:08,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-14 14:27:08,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:27:08,923 INFO L225 Difference]: With dead ends: 35 [2023-02-14 14:27:08,924 INFO L226 Difference]: Without dead ends: 24 [2023-02-14 14:27:08,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:27:08,925 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:27:08,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 33 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:27:08,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-14 14:27:08,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-02-14 14:27:08,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:27:08,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2023-02-14 14:27:08,935 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 8 [2023-02-14 14:27:08,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:27:08,937 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2023-02-14 14:27:08,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:27:08,937 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2023-02-14 14:27:08,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-14 14:27:08,938 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:27:08,938 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-02-14 14:27:08,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-14 14:27:08,939 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:27:08,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:27:08,940 INFO L85 PathProgramCache]: Analyzing trace with hash -869586168, now seen corresponding path program 1 times [2023-02-14 14:27:08,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:27:08,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450255637] [2023-02-14 14:27:08,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:27:08,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:27:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:27:09,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:27:09,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:27:09,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450255637] [2023-02-14 14:27:09,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450255637] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:27:09,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637539867] [2023-02-14 14:27:09,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:27:09,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:27:09,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:27:09,076 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) [2023-02-14 14:27:09,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 14:27:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:27:09,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 14:27:09,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:27:09,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:27:09,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 14:27:09,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637539867] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:27:09,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-14 14:27:09,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-14 14:27:09,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508888657] [2023-02-14 14:27:09,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:27:09,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-14 14:27:09,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:27:09,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-14 14:27:09,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-14 14:27:09,188 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2023-02-14 14:27:09,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:27:09,225 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2023-02-14 14:27:09,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:27:09,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2023-02-14 14:27:09,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:27:09,227 INFO L225 Difference]: With dead ends: 24 [2023-02-14 14:27:09,227 INFO L226 Difference]: Without dead ends: 23 [2023-02-14 14:27:09,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-02-14 14:27:09,229 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 20 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:27:09,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 29 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:27:09,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-14 14:27:09,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-14 14:27:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 22 states have internal predecessors, (24), 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) [2023-02-14 14:27:09,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-14 14:27:09,234 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 10 [2023-02-14 14:27:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:27:09,234 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-14 14:27:09,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2023-02-14 14:27:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-14 14:27:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-14 14:27:09,235 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:27:09,235 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-02-14 14:27:09,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-14 14:27:09,446 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 [2023-02-14 14:27:09,447 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:27:09,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:27:09,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1187367381, now seen corresponding path program 1 times [2023-02-14 14:27:09,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:27:09,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509089862] [2023-02-14 14:27:09,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:27:09,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:27:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:27:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:27:09,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:27:09,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509089862] [2023-02-14 14:27:09,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509089862] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:27:09,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035883190] [2023-02-14 14:27:09,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:27:09,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:27:09,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:27:09,586 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) [2023-02-14 14:27:09,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-14 14:27:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:27:09,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 14:27:09,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:27:09,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:27:09,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:27:09,712 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:27:09,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035883190] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:27:09,713 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:27:09,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-14 14:27:09,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133034699] [2023-02-14 14:27:09,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:27:09,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-14 14:27:09,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:27:09,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-14 14:27:09,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-14 14:27:09,716 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:27:09,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:27:09,817 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2023-02-14 14:27:09,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-14 14:27:09,818 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-14 14:27:09,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:27:09,819 INFO L225 Difference]: With dead ends: 69 [2023-02-14 14:27:09,819 INFO L226 Difference]: Without dead ends: 68 [2023-02-14 14:27:09,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-02-14 14:27:09,821 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 88 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:27:09,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 125 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:27:09,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-02-14 14:27:09,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 35. [2023-02-14 14:27:09,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.3) internal successors, (39), 34 states have internal predecessors, (39), 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) [2023-02-14 14:27:09,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2023-02-14 14:27:09,827 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 11 [2023-02-14 14:27:09,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:27:09,827 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2023-02-14 14:27:09,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:27:09,828 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2023-02-14 14:27:09,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-14 14:27:09,829 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:27:09,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:27:09,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-14 14:27:10,034 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,SelfDestructingSolverStorable3 [2023-02-14 14:27:10,035 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:27:10,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:27:10,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1844723183, now seen corresponding path program 1 times [2023-02-14 14:27:10,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:27:10,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186521174] [2023-02-14 14:27:10,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:27:10,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:27:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:27:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 14:27:10,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:27:10,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186521174] [2023-02-14 14:27:10,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186521174] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:27:10,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:27:10,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:27:10,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775173603] [2023-02-14 14:27:10,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:27:10,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:27:10,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:27:10,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:27:10,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:27:10,107 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-02-14 14:27:10,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:27:10,127 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2023-02-14 14:27:10,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:27:10,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2023-02-14 14:27:10,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:27:10,129 INFO L225 Difference]: With dead ends: 45 [2023-02-14 14:27:10,129 INFO L226 Difference]: Without dead ends: 43 [2023-02-14 14:27:10,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:27:10,131 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:27:10,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 22 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:27:10,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-14 14:27:10,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2023-02-14 14:27:10,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 38 states have internal predecessors, (43), 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) [2023-02-14 14:27:10,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2023-02-14 14:27:10,136 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 12 [2023-02-14 14:27:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:27:10,137 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2023-02-14 14:27:10,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-02-14 14:27:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2023-02-14 14:27:10,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-14 14:27:10,137 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:27:10,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:27:10,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-14 14:27:10,138 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:27:10,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:27:10,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1042512047, now seen corresponding path program 1 times [2023-02-14 14:27:10,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:27:10,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604748063] [2023-02-14 14:27:10,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:27:10,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:27:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:27:10,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 14:27:10,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:27:10,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604748063] [2023-02-14 14:27:10,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604748063] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:27:10,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:27:10,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-14 14:27:10,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634601921] [2023-02-14 14:27:10,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:27:10,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-14 14:27:10,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:27:10,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-14 14:27:10,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-14 14:27:10,237 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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) [2023-02-14 14:27:10,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:27:10,284 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2023-02-14 14:27:10,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:27:10,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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) Word has length 14 [2023-02-14 14:27:10,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:27:10,285 INFO L225 Difference]: With dead ends: 43 [2023-02-14 14:27:10,285 INFO L226 Difference]: Without dead ends: 42 [2023-02-14 14:27:10,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-14 14:27:10,286 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:27:10,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 35 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:27:10,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-14 14:27:10,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2023-02-14 14:27:10,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 39 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) [2023-02-14 14:27:10,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2023-02-14 14:27:10,291 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 14 [2023-02-14 14:27:10,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:27:10,291 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2023-02-14 14:27:10,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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) [2023-02-14 14:27:10,292 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2023-02-14 14:27:10,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-14 14:27:10,292 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:27:10,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:27:10,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-14 14:27:10,293 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:27:10,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:27:10,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2041864988, now seen corresponding path program 1 times [2023-02-14 14:27:10,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:27:10,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817200154] [2023-02-14 14:27:10,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:27:10,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:27:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:27:10,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:27:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:27:10,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:27:10,330 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-14 14:27:10,331 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-02-14 14:27:10,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-02-14 14:27:10,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-02-14 14:27:10,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-02-14 14:27:10,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-02-14 14:27:10,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-02-14 14:27:10,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-14 14:27:10,336 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:27:10,340 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 14:27:10,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 02:27:10 BoogieIcfgContainer [2023-02-14 14:27:10,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 14:27:10,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 14:27:10,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 14:27:10,364 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 14:27:10,364 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:27:08" (3/4) ... [2023-02-14 14:27:10,366 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-14 14:27:10,391 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-14 14:27:10,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 14:27:10,392 INFO L158 Benchmark]: Toolchain (without parser) took 2708.09ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 93.3MB in the beginning and 151.3MB in the end (delta: -58.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:27:10,392 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 140.5MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:27:10,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.50ms. Allocated memory is still 140.5MB. Free memory was 92.8MB in the beginning and 83.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 14:27:10,393 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.15ms. Allocated memory is still 140.5MB. Free memory was 83.4MB in the beginning and 81.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:27:10,393 INFO L158 Benchmark]: Boogie Preprocessor took 37.11ms. Allocated memory is still 140.5MB. Free memory was 81.8MB in the beginning and 80.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:27:10,393 INFO L158 Benchmark]: RCFGBuilder took 254.95ms. Allocated memory is still 140.5MB. Free memory was 80.8MB in the beginning and 70.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 14:27:10,394 INFO L158 Benchmark]: TraceAbstraction took 2168.77ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 69.8MB in the beginning and 153.4MB in the end (delta: -83.6MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2023-02-14 14:27:10,394 INFO L158 Benchmark]: Witness Printer took 27.76ms. Allocated memory is still 182.5MB. Free memory was 153.4MB in the beginning and 151.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:27:10,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 140.5MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.50ms. Allocated memory is still 140.5MB. Free memory was 92.8MB in the beginning and 83.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.15ms. Allocated memory is still 140.5MB. Free memory was 83.4MB in the beginning and 81.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.11ms. Allocated memory is still 140.5MB. Free memory was 81.8MB in the beginning and 80.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 254.95ms. Allocated memory is still 140.5MB. Free memory was 80.8MB in the beginning and 70.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2168.77ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 69.8MB in the beginning and 153.4MB in the end (delta: -83.6MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * Witness Printer took 27.76ms. Allocated memory is still 182.5MB. Free memory was 153.4MB in the beginning and 151.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int a_length = __VERIFIER_nondet_int(); [L13] COND FALSE !(a_length < 1) [L16] int a[a_length]; [L17] int j = 0; VAL [a={2:0}, a_length=1, j=0] [L17] COND TRUE j < a_length [L18] a[j] = __VERIFIER_nondet_int() [L17] j++ VAL [a={2:0}, a_length=1, j=1] [L17] COND FALSE !(j < a_length) VAL [a={2:0}, a_length=1, j=1] [L20] int offset = 1; [L21] int i = 0; VAL [a={2:0}, a_length=1, i=0, j=1, offset=1] [L22] COND TRUE i < a_length [L23] EXPR a[i] VAL [a={2:0}, a[i]=2147483647, a_length=1, i=0, j=1, offset=1] [L23] COND FALSE !(a[i] < 0) [L26] EXPR i + offset [L26] EXPR a[i] VAL [a={2:0}, a[i]=2147483647, a_length=1, i=0, j=1, offset=1] [L26] i + offset + a[i] VAL [a={2:0}, a[i]=2147483647, a_length=1, i=0, j=1, offset=1] - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 310 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 212 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 98 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=6, InterpolantAutomatonStates: 32, 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, 6 MinimizatonAttempts, 50 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 4 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 5/20 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 RESULT: Ultimate proved your program to be incorrect! [2023-02-14 14:27:10,412 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)