./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a31fd051 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/HarrisLalNoriRajamani-SAS2010-Fig2.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 676276db79a43f24ac4768848febffe3dd303b6e2c16071dede4e51ae957576d --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:58:34,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:58:34,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:58:35,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:58:35,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:58:35,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:58:35,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:58:35,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:58:35,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:58:35,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:58:35,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:58:35,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:58:35,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:58:35,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:58:35,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:58:35,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:58:35,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:58:35,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:58:35,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:58:35,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:58:35,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:58:35,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:58:35,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:58:35,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:58:35,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:58:35,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:58:35,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:58:35,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:58:35,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:58:35,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:58:35,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:58:35,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:58:35,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:58:35,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:58:35,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:58:35,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:58:35,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:58:35,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:58:35,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:58:35,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:58:35,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:58:35,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 13:58:35,089 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:58:35,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:58:35,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:58:35,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:58:35,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:58:35,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:58:35,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:58:35,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:58:35,092 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:58:35,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:58:35,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:58:35,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 13:58:35,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:58:35,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 13:58:35,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:58:35,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 13:58:35,094 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 13:58:35,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 13:58:35,094 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:58:35,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 13:58:35,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:58:35,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:58:35,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:58:35,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:58:35,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:58:35,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:58:35,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 13:58:35,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 13:58:35,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 13:58:35,096 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:58:35,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 13:58:35,097 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:58:35,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:58:35,097 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:58:35,097 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 676276db79a43f24ac4768848febffe3dd303b6e2c16071dede4e51ae957576d [2023-02-15 13:58:35,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:58:35,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:58:35,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:58:35,354 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:58:35,354 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:58:35,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2023-02-15 13:58:36,463 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:58:36,618 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:58:36,618 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2023-02-15 13:58:36,623 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac01920fc/75c78b88c2f24ad3829d41e6b03dd250/FLAGab19054d2 [2023-02-15 13:58:36,638 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac01920fc/75c78b88c2f24ad3829d41e6b03dd250 [2023-02-15 13:58:36,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:58:36,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:58:36,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:58:36,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:58:36,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:58:36,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a64ed17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36, skipping insertion in model container [2023-02-15 13:58:36,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:58:36,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:58:36,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:58:36,774 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 13:58:36,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:58:36,799 INFO L208 MainTranslator]: Completed translation [2023-02-15 13:58:36,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36 WrapperNode [2023-02-15 13:58:36,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 13:58:36,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 13:58:36,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 13:58:36,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 13:58:36,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,828 INFO L138 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-02-15 13:58:36,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 13:58:36,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 13:58:36,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 13:58:36,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 13:58:36,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,858 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 13:58:36,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 13:58:36,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 13:58:36,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 13:58:36,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36" (1/1) ... [2023-02-15 13:58:36,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:58:36,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:58:36,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 13:58:36,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 13:58:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-02-15 13:58:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-02-15 13:58:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 13:58:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 13:58:36,980 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 13:58:36,981 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 13:58:37,159 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 13:58:37,166 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 13:58:37,180 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 13:58:37,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:58:37 BoogieIcfgContainer [2023-02-15 13:58:37,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 13:58:37,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 13:58:37,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 13:58:37,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 13:58:37,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:58:36" (1/3) ... [2023-02-15 13:58:37,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e12c8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:58:37, skipping insertion in model container [2023-02-15 13:58:37,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:58:36" (2/3) ... [2023-02-15 13:58:37,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e12c8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:58:37, skipping insertion in model container [2023-02-15 13:58:37,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:58:37" (3/3) ... [2023-02-15 13:58:37,191 INFO L112 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2.c [2023-02-15 13:58:37,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 13:58:37,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-15 13:58:37,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 13:58:37,309 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;@1b7237b7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 13:58:37,309 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-15 13:58:37,326 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 43 states have internal predecessors, (58), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 13:58:37,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-15 13:58:37,331 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:58:37,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-15 13:58:37,332 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)] === [2023-02-15 13:58:37,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:58:37,336 INFO L85 PathProgramCache]: Analyzing trace with hash 2218532, now seen corresponding path program 1 times [2023-02-15 13:58:37,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:58:37,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131572846] [2023-02-15 13:58:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:58:37,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:58:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:58:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:58:37,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:58:37,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131572846] [2023-02-15 13:58:37,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131572846] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:58:37,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:58:37,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:58:37,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894309944] [2023-02-15 13:58:37,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:58:37,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:58:37,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:58:37,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:58:37,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:58:37,540 INFO L87 Difference]: Start difference. First operand has 49 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 43 states have internal predecessors, (58), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:37,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:58:37,624 INFO L93 Difference]: Finished difference Result 83 states and 110 transitions. [2023-02-15 13:58:37,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:58:37,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-02-15 13:58:37,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:58:37,633 INFO L225 Difference]: With dead ends: 83 [2023-02-15 13:58:37,634 INFO L226 Difference]: Without dead ends: 69 [2023-02-15 13:58:37,636 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 [2023-02-15 13:58:37,640 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 33 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:58:37,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 110 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:58:37,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-02-15 13:58:37,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2023-02-15 13:58:37,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.469387755102041) internal successors, (72), 53 states have internal predecessors, (72), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 13:58:37,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2023-02-15 13:58:37,680 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 88 transitions. Word has length 4 [2023-02-15 13:58:37,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:58:37,680 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 88 transitions. [2023-02-15 13:58:37,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:37,681 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 88 transitions. [2023-02-15 13:58:37,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 13:58:37,681 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:58:37,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 13:58:37,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 13:58:37,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:58:37,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:58:37,683 INFO L85 PathProgramCache]: Analyzing trace with hash 68774573, now seen corresponding path program 1 times [2023-02-15 13:58:37,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:58:37,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904949521] [2023-02-15 13:58:37,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:58:37,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:58:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:58:37,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:58:37,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:58:37,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904949521] [2023-02-15 13:58:37,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904949521] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:58:37,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:58:37,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:58:37,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777535568] [2023-02-15 13:58:37,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:58:37,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:58:37,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:58:37,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:58:37,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:58:37,714 INFO L87 Difference]: Start difference. First operand 63 states and 88 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:37,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:58:37,735 INFO L93 Difference]: Finished difference Result 63 states and 88 transitions. [2023-02-15 13:58:37,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:58:37,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 13:58:37,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:58:37,737 INFO L225 Difference]: With dead ends: 63 [2023-02-15 13:58:37,737 INFO L226 Difference]: Without dead ends: 61 [2023-02-15 13:58:37,738 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 [2023-02-15 13:58:37,739 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 27 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:58:37,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 71 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:58:37,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-02-15 13:58:37,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-02-15 13:58:37,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 51 states have internal predecessors, (70), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 13:58:37,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 86 transitions. [2023-02-15 13:58:37,762 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 86 transitions. Word has length 5 [2023-02-15 13:58:37,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:58:37,762 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 86 transitions. [2023-02-15 13:58:37,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:37,763 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 86 transitions. [2023-02-15 13:58:37,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 13:58:37,764 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:58:37,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:58:37,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 13:58:37,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:58:37,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:58:37,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1927016760, now seen corresponding path program 1 times [2023-02-15 13:58:37,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:58:37,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856561710] [2023-02-15 13:58:37,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:58:37,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:58:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:58:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:58:37,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:58:37,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856561710] [2023-02-15 13:58:37,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856561710] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:58:37,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:58:37,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:58:37,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661039759] [2023-02-15 13:58:37,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:58:37,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:58:37,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:58:37,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:58:37,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:58:37,865 INFO L87 Difference]: Start difference. First operand 61 states and 86 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:37,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:58:37,913 INFO L93 Difference]: Finished difference Result 61 states and 86 transitions. [2023-02-15 13:58:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:58:37,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 [2023-02-15 13:58:37,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:58:37,916 INFO L225 Difference]: With dead ends: 61 [2023-02-15 13:58:37,918 INFO L226 Difference]: Without dead ends: 60 [2023-02-15 13:58:37,918 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 [2023-02-15 13:58:37,920 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 19 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:58:37,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 114 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:58:37,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-15 13:58:37,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-02-15 13:58:37,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 50 states have internal predecessors, (69), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 13:58:37,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 85 transitions. [2023-02-15 13:58:37,931 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 85 transitions. Word has length 15 [2023-02-15 13:58:37,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:58:37,931 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 85 transitions. [2023-02-15 13:58:37,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:37,932 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 85 transitions. [2023-02-15 13:58:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 13:58:37,933 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:58:37,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:58:37,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 13:58:37,933 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:58:37,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:58:37,934 INFO L85 PathProgramCache]: Analyzing trace with hash -392022441, now seen corresponding path program 1 times [2023-02-15 13:58:37,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:58:37,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073524182] [2023-02-15 13:58:37,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:58:37,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:58:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:58:38,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:58:38,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:58:38,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073524182] [2023-02-15 13:58:38,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073524182] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:58:38,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:58:38,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:58:38,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511253239] [2023-02-15 13:58:38,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:58:38,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:58:38,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:58:38,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:58:38,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:58:38,004 INFO L87 Difference]: Start difference. First operand 60 states and 85 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:38,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:58:38,028 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2023-02-15 13:58:38,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:58:38,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2023-02-15 13:58:38,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:58:38,032 INFO L225 Difference]: With dead ends: 65 [2023-02-15 13:58:38,033 INFO L226 Difference]: Without dead ends: 64 [2023-02-15 13:58:38,033 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 [2023-02-15 13:58:38,036 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 12 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 102 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 [2023-02-15 13:58:38,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 102 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:58:38,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-02-15 13:58:38,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2023-02-15 13:58:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 52 states have (on average 1.3846153846153846) internal successors, (72), 53 states have internal predecessors, (72), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 13:58:38,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2023-02-15 13:58:38,047 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 88 transitions. Word has length 16 [2023-02-15 13:58:38,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:58:38,047 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 88 transitions. [2023-02-15 13:58:38,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:38,048 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 88 transitions. [2023-02-15 13:58:38,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 13:58:38,049 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:58:38,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:58:38,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 13:58:38,050 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)] === [2023-02-15 13:58:38,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:58:38,050 INFO L85 PathProgramCache]: Analyzing trace with hash 366063762, now seen corresponding path program 1 times [2023-02-15 13:58:38,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:58:38,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858597597] [2023-02-15 13:58:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:58:38,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:58:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:58:38,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:58:38,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:58:38,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858597597] [2023-02-15 13:58:38,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858597597] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:58:38,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:58:38,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:58:38,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146610050] [2023-02-15 13:58:38,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:58:38,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:58:38,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:58:38,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:58:38,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:58:38,114 INFO L87 Difference]: Start difference. First operand 63 states and 88 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:58:38,149 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2023-02-15 13:58:38,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:58:38,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2023-02-15 13:58:38,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:58:38,151 INFO L225 Difference]: With dead ends: 72 [2023-02-15 13:58:38,151 INFO L226 Difference]: Without dead ends: 71 [2023-02-15 13:58:38,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:58:38,153 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 39 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:58:38,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 119 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:58:38,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-02-15 13:58:38,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 61. [2023-02-15 13:58:38,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 51 states have internal predecessors, (70), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 13:58:38,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 86 transitions. [2023-02-15 13:58:38,163 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 86 transitions. Word has length 16 [2023-02-15 13:58:38,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:58:38,163 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 86 transitions. [2023-02-15 13:58:38,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:38,164 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 86 transitions. [2023-02-15 13:58:38,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 13:58:38,165 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:58:38,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:58:38,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 13:58:38,166 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:58:38,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:58:38,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1039388955, now seen corresponding path program 1 times [2023-02-15 13:58:38,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:58:38,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427765847] [2023-02-15 13:58:38,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:58:38,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:58:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:58:38,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:58:38,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:58:38,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427765847] [2023-02-15 13:58:38,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427765847] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:58:38,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:58:38,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:58:38,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193814812] [2023-02-15 13:58:38,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:58:38,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:58:38,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:58:38,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:58:38,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:58:38,269 INFO L87 Difference]: Start difference. First operand 61 states and 86 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:38,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:58:38,311 INFO L93 Difference]: Finished difference Result 67 states and 92 transitions. [2023-02-15 13:58:38,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:58:38,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-15 13:58:38,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:58:38,313 INFO L225 Difference]: With dead ends: 67 [2023-02-15 13:58:38,313 INFO L226 Difference]: Without dead ends: 66 [2023-02-15 13:58:38,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:58:38,319 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 33 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:58:38,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 116 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:58:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-02-15 13:58:38,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2023-02-15 13:58:38,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 53 states have internal predecessors, (72), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 13:58:38,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2023-02-15 13:58:38,331 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 88 transitions. Word has length 18 [2023-02-15 13:58:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:58:38,331 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 88 transitions. [2023-02-15 13:58:38,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 88 transitions. [2023-02-15 13:58:38,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 13:58:38,333 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:58:38,333 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:58:38,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 13:58:38,333 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)] === [2023-02-15 13:58:38,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:58:38,334 INFO L85 PathProgramCache]: Analyzing trace with hash -724323914, now seen corresponding path program 1 times [2023-02-15 13:58:38,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:58:38,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296896392] [2023-02-15 13:58:38,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:58:38,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:58:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:58:38,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:58:38,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:58:38,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296896392] [2023-02-15 13:58:38,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296896392] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:58:38,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627562424] [2023-02-15 13:58:38,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:58:38,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:58:38,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:58:38,396 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:58:38,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 13:58:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:58:38,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 13:58:38,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:58:38,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:58:38,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:58:38,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627562424] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:58:38,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 13:58:38,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-02-15 13:58:38,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414805054] [2023-02-15 13:58:38,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:58:38,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:58:38,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:58:38,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:58:38,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:58:38,569 INFO L87 Difference]: Start difference. First operand 63 states and 88 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:38,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:58:38,610 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2023-02-15 13:58:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:58:38,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2023-02-15 13:58:38,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:58:38,613 INFO L225 Difference]: With dead ends: 70 [2023-02-15 13:58:38,613 INFO L226 Difference]: Without dead ends: 63 [2023-02-15 13:58:38,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:58:38,615 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 12 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:58:38,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 149 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:58:38,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-15 13:58:38,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-02-15 13:58:38,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 53 states have internal predecessors, (71), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 13:58:38,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 87 transitions. [2023-02-15 13:58:38,636 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 87 transitions. Word has length 19 [2023-02-15 13:58:38,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:58:38,636 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 87 transitions. [2023-02-15 13:58:38,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:58:38,636 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2023-02-15 13:58:38,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-15 13:58:38,640 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:58:38,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:58:38,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 13:58:38,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:58:38,845 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:58:38,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:58:38,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2109694591, now seen corresponding path program 1 times [2023-02-15 13:58:38,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:58:38,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932093918] [2023-02-15 13:58:38,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:58:38,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:58:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 13:58:38,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 13:58:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 13:58:38,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 13:58:38,871 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 13:58:38,872 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-02-15 13:58:38,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-02-15 13:58:38,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-02-15 13:58:38,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-02-15 13:58:38,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-02-15 13:58:38,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-02-15 13:58:38,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 13:58:38,882 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:58:38,885 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 13:58:38,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:58:38 BoogieIcfgContainer [2023-02-15 13:58:38,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 13:58:38,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 13:58:38,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 13:58:38,906 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 13:58:38,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:58:37" (3/4) ... [2023-02-15 13:58:38,908 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-15 13:58:38,942 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 13:58:38,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 13:58:38,942 INFO L158 Benchmark]: Toolchain (without parser) took 2301.32ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 75.0MB in the beginning and 89.6MB in the end (delta: -14.7MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2023-02-15 13:58:38,943 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory was 96.4MB in the beginning and 96.3MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:58:38,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.71ms. Allocated memory is still 121.6MB. Free memory was 75.0MB in the beginning and 65.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 13:58:38,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.54ms. Allocated memory is still 121.6MB. Free memory was 65.4MB in the beginning and 63.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 13:58:38,949 INFO L158 Benchmark]: Boogie Preprocessor took 31.10ms. Allocated memory is still 121.6MB. Free memory was 63.6MB in the beginning and 62.6MB in the end (delta: 998.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 13:58:38,950 INFO L158 Benchmark]: RCFGBuilder took 322.30ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 62.6MB in the beginning and 119.8MB in the end (delta: -57.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-02-15 13:58:38,950 INFO L158 Benchmark]: TraceAbstraction took 1720.02ms. Allocated memory is still 153.1MB. Free memory was 119.8MB in the beginning and 91.7MB in the end (delta: 28.1MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2023-02-15 13:58:38,950 INFO L158 Benchmark]: Witness Printer took 36.74ms. Allocated memory is still 153.1MB. Free memory was 91.7MB in the beginning and 89.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 13:58:38,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory was 96.4MB in the beginning and 96.3MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 157.71ms. Allocated memory is still 121.6MB. Free memory was 75.0MB in the beginning and 65.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.54ms. Allocated memory is still 121.6MB. Free memory was 65.4MB in the beginning and 63.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.10ms. Allocated memory is still 121.6MB. Free memory was 63.6MB in the beginning and 62.6MB in the end (delta: 998.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 322.30ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 62.6MB in the beginning and 119.8MB in the end (delta: -57.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1720.02ms. Allocated memory is still 153.1MB. Free memory was 119.8MB in the beginning and 91.7MB in the end (delta: 28.1MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Witness Printer took 36.74ms. Allocated memory is still 153.1MB. Free memory was 91.7MB in the beginning and 89.6MB in the end (delta: 2.1MB). 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: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L53] int d = 1; [L54] int x = __VERIFIER_nondet_int(); [L56] COND TRUE __VERIFIER_nondet_int() [L57] EXPR d - 1 [L57] d = d - 1 VAL [d=0, x=2147483647] [L61] COND FALSE !(__VERIFIER_nondet_int()) [L64] COND FALSE !(__VERIFIER_nondet_int()) [L67] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND FALSE !(__VERIFIER_nondet_int()) [L76] COND TRUE __VERIFIER_nondet_int() [L77] EXPR d - 1 [L77] d = d - 1 VAL [d=-1, x=2147483647] [L80] COND TRUE x > 0 VAL [d=-1, x=2147483647] [L81] x - d VAL [d=-1, x=2147483647] - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: 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 2 procedures, 49 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 211 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 175 mSDsluCounter, 781 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 404 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 377 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=1, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 20 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 492 SizeOfPredicates, 0 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 3/6 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! [2023-02-15 13:58:38,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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)