./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark44_disjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark44_disjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 836105bf2d2cb5db07e9d2fc670fa9e989ff3845 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 15:59:20,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 15:59:20,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 15:59:20,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 15:59:20,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 15:59:20,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 15:59:20,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 15:59:20,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 15:59:20,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 15:59:20,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 15:59:20,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 15:59:20,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 15:59:20,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 15:59:20,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 15:59:20,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 15:59:20,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 15:59:20,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 15:59:20,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 15:59:20,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 15:59:20,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 15:59:20,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 15:59:20,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 15:59:20,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 15:59:20,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 15:59:20,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 15:59:20,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 15:59:20,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 15:59:20,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 15:59:20,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 15:59:20,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 15:59:20,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 15:59:20,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 15:59:20,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 15:59:20,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 15:59:20,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 15:59:20,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 15:59:20,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 15:59:20,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 15:59:20,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 15:59:20,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 15:59:20,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 15:59:20,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-07-06 15:59:20,163 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 15:59:20,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 15:59:20,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 15:59:20,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 15:59:20,168 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 15:59:20,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 15:59:20,168 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 15:59:20,168 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 15:59:20,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 15:59:20,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 15:59:20,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 15:59:20,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-06 15:59:20,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 15:59:20,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-06 15:59:20,170 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-07-06 15:59:20,170 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 15:59:20,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 15:59:20,170 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 15:59:20,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-06 15:59:20,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 15:59:20,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 15:59:20,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 15:59:20,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:59:20,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 15:59:20,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 15:59:20,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-06 15:59:20,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 15:59:20,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-06 15:59:20,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-06 15:59:20,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 15:59:20,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 836105bf2d2cb5db07e9d2fc670fa9e989ff3845 [2021-07-06 15:59:20,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 15:59:20,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 15:59:20,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 15:59:20,441 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 15:59:20,442 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 15:59:20,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark44_disjunctive.i [2021-07-06 15:59:20,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9b20001/638e8a1206e1470386755e4d1153168c/FLAG12ab98a6d [2021-07-06 15:59:20,837 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 15:59:20,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark44_disjunctive.i [2021-07-06 15:59:20,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9b20001/638e8a1206e1470386755e4d1153168c/FLAG12ab98a6d [2021-07-06 15:59:20,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9b20001/638e8a1206e1470386755e4d1153168c [2021-07-06 15:59:20,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 15:59:20,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 15:59:20,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 15:59:20,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 15:59:20,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 15:59:20,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:59:20" (1/1) ... [2021-07-06 15:59:20,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122cf98f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:20, skipping insertion in model container [2021-07-06 15:59:20,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:59:20" (1/1) ... [2021-07-06 15:59:20,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 15:59:20,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 15:59:20,989 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark44_disjunctive.i[873,886] [2021-07-06 15:59:20,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:59:21,002 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 15:59:21,013 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark44_disjunctive.i[873,886] [2021-07-06 15:59:21,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:59:21,032 INFO L208 MainTranslator]: Completed translation [2021-07-06 15:59:21,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:21 WrapperNode [2021-07-06 15:59:21,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 15:59:21,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 15:59:21,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 15:59:21,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 15:59:21,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:21" (1/1) ... [2021-07-06 15:59:21,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:21" (1/1) ... [2021-07-06 15:59:21,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 15:59:21,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 15:59:21,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 15:59:21,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 15:59:21,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:21" (1/1) ... [2021-07-06 15:59:21,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:21" (1/1) ... [2021-07-06 15:59:21,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:21" (1/1) ... [2021-07-06 15:59:21,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:21" (1/1) ... [2021-07-06 15:59:21,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:21" (1/1) ... [2021-07-06 15:59:21,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:21" (1/1) ... [2021-07-06 15:59:21,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:21" (1/1) ... [2021-07-06 15:59:21,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 15:59:21,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 15:59:21,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 15:59:21,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 15:59:21,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:21" (1/1) ... [2021-07-06 15:59:21,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:59:21,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 15:59:21,154 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) [2021-07-06 15:59:21,176 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 [2021-07-06 15:59:21,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 15:59:21,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 15:59:21,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 15:59:21,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 15:59:21,441 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 15:59:21,441 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-06 15:59:21,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:59:21 BoogieIcfgContainer [2021-07-06 15:59:21,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 15:59:21,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-06 15:59:21,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-06 15:59:21,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-06 15:59:21,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.07 03:59:20" (1/3) ... [2021-07-06 15:59:21,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fd433d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:59:21, skipping insertion in model container [2021-07-06 15:59:21,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:59:21" (2/3) ... [2021-07-06 15:59:21,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fd433d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:59:21, skipping insertion in model container [2021-07-06 15:59:21,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:59:21" (3/3) ... [2021-07-06 15:59:21,447 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark44_disjunctive.i [2021-07-06 15:59:21,466 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-06 15:59:21,467 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-07-06 15:59:21,498 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:59:21,506 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:59:21,506 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:59:21,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 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) [2021-07-06 15:59:21,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-06 15:59:21,539 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:59:21,539 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-06 15:59:21,539 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:59:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:59:21,545 INFO L82 PathProgramCache]: Analyzing trace with hash 889575245, now seen corresponding path program 1 times [2021-07-06 15:59:21,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:59:21,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080391913] [2021-07-06 15:59:21,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:59:21,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:59:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:59:21,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:59:21,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:59:21,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:59:21,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:59:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:59:21,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:59:21,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080391913] [2021-07-06 15:59:21,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080391913] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:59:21,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:59:21,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 15:59:21,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183753476] [2021-07-06 15:59:21,680 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:59:21,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:59:21,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:59:21,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:59:21,693 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:59:21,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:59:21,744 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2021-07-06 15:59:21,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:59:21,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-07-06 15:59:21,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:59:21,748 INFO L225 Difference]: With dead ends: 54 [2021-07-06 15:59:21,748 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:59:21,750 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:59:21,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:59:21,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:59:21,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:59:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:59:21,763 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-07-06 15:59:21,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:59:21,763 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:59:21,764 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:59:21,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:59:21,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:59:21,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:59:21,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:59:21,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:59:21,773 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,773 INFO L765 garLoopResultBuilder]: At program point L27-1(lines 23 32) the Hoare annotation is: true [2021-07-06 15:59:21,774 INFO L762 garLoopResultBuilder]: For program point L23-2(lines 23 32) no Hoare annotation was computed. [2021-07-06 15:59:21,774 INFO L762 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-07-06 15:59:21,774 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,774 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,774 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-06 15:59:21,774 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,775 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:59:21,775 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,775 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:59:21,775 INFO L762 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,775 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,775 INFO L762 garLoopResultBuilder]: For program point L28-2(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,775 INFO L762 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,776 INFO L762 garLoopResultBuilder]: For program point L24(lines 24 26) no Hoare annotation was computed. [2021-07-06 15:59:21,776 INFO L762 garLoopResultBuilder]: For program point L24-2(lines 23 32) no Hoare annotation was computed. [2021-07-06 15:59:21,776 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,776 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,776 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,776 INFO L762 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,776 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:59:21,777 INFO L762 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,777 INFO L762 garLoopResultBuilder]: For program point L33-2(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,777 INFO L762 garLoopResultBuilder]: For program point L33-4(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,777 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,777 INFO L762 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,777 INFO L762 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,777 INFO L762 garLoopResultBuilder]: For program point L25-2(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,778 INFO L762 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,778 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,778 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,778 INFO L765 garLoopResultBuilder]: At program point L34(lines 19 35) the Hoare annotation is: true [2021-07-06 15:59:21,778 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,778 INFO L762 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,779 INFO L762 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,779 INFO L762 garLoopResultBuilder]: For program point L30-2(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,779 INFO L762 garLoopResultBuilder]: For program point L30-3(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,779 INFO L762 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-07-06 15:59:21,779 INFO L762 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-07-06 15:59:21,779 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,779 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,780 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-06 15:59:21,780 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:59:21,788 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (1/14) [2021-07-06 15:59:21,791 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:59:21,791 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:59:21,792 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:59:21,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 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) [2021-07-06 15:59:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-07-06 15:59:21,793 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:59:21,794 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:59:21,794 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:59:21,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:59:21,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1807028872, now seen corresponding path program 1 times [2021-07-06 15:59:21,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:59:21,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070439010] [2021-07-06 15:59:21,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:59:21,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:59:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:59:21,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:59:21,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:59:21,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:59:21,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:59:21,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:59:21,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:59:21,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070439010] [2021-07-06 15:59:21,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070439010] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:59:21,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:59:21,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 15:59:21,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682151875] [2021-07-06 15:59:21,817 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:59:21,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:59:21,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:59:21,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:59:21,818 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-07-06 15:59:21,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:59:21,846 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2021-07-06 15:59:21,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:59:21,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-07-06 15:59:21,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:59:21,846 INFO L225 Difference]: With dead ends: 54 [2021-07-06 15:59:21,847 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:59:21,847 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:59:21,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:59:21,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:59:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:59:21,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:59:21,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-07-06 15:59:21,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:59:21,848 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:59:21,848 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-07-06 15:59:21,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:59:21,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:59:21,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:59:21,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:59:21,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:59:21,854 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,854 INFO L758 garLoopResultBuilder]: At program point L27-1(lines 23 32) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) [2021-07-06 15:59:21,854 INFO L762 garLoopResultBuilder]: For program point L23-2(lines 23 32) no Hoare annotation was computed. [2021-07-06 15:59:21,854 INFO L762 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-07-06 15:59:21,854 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,855 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,855 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-06 15:59:21,855 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,855 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:59:21,855 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,855 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:59:21,856 INFO L762 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,856 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,856 INFO L762 garLoopResultBuilder]: For program point L28-2(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,856 INFO L762 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,856 INFO L762 garLoopResultBuilder]: For program point L24(lines 24 26) no Hoare annotation was computed. [2021-07-06 15:59:21,856 INFO L762 garLoopResultBuilder]: For program point L24-2(lines 23 32) no Hoare annotation was computed. [2021-07-06 15:59:21,857 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,857 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,857 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,857 INFO L762 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,857 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:59:21,857 INFO L762 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,857 INFO L762 garLoopResultBuilder]: For program point L33-2(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,858 INFO L762 garLoopResultBuilder]: For program point L33-4(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,858 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,858 INFO L762 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,858 INFO L762 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,858 INFO L762 garLoopResultBuilder]: For program point L25-2(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,858 INFO L762 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,859 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,859 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,859 INFO L758 garLoopResultBuilder]: At program point L34(lines 19 35) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) [2021-07-06 15:59:21,859 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,859 INFO L762 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,859 INFO L762 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,860 INFO L762 garLoopResultBuilder]: For program point L30-2(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,860 INFO L762 garLoopResultBuilder]: For program point L30-3(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,860 INFO L762 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-07-06 15:59:21,860 INFO L762 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-07-06 15:59:21,860 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,860 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,861 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-06 15:59:21,861 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:59:21,861 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (2/14) [2021-07-06 15:59:21,862 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:59:21,863 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:59:21,863 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:59:21,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 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) [2021-07-06 15:59:21,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-06 15:59:21,865 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:59:21,865 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:59:21,865 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:59:21,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:59:21,866 INFO L82 PathProgramCache]: Analyzing trace with hash 183320239, now seen corresponding path program 1 times [2021-07-06 15:59:21,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:59:21,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120039496] [2021-07-06 15:59:21,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:59:21,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:59:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:59:21,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:59:21,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:59:21,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:59:21,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:59:21,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:59:21,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:59:21,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120039496] [2021-07-06 15:59:21,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120039496] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:59:21,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:59:21,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 15:59:21,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494242470] [2021-07-06 15:59:21,886 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:59:21,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:59:21,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:59:21,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:59:21,887 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.0) 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) [2021-07-06 15:59:21,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:59:21,925 INFO L93 Difference]: Finished difference Result 87 states and 102 transitions. [2021-07-06 15:59:21,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:59:21,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) 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 [2021-07-06 15:59:21,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:59:21,926 INFO L225 Difference]: With dead ends: 87 [2021-07-06 15:59:21,926 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:59:21,927 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:59:21,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:59:21,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:59:21,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:59:21,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:59:21,928 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-07-06 15:59:21,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:59:21,928 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:59:21,928 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) 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) [2021-07-06 15:59:21,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:59:21,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:59:21,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:59:21,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:59:21,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:59:21,932 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,932 INFO L758 garLoopResultBuilder]: At program point L27-1(lines 23 32) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) [2021-07-06 15:59:21,932 INFO L762 garLoopResultBuilder]: For program point L23-2(lines 23 32) no Hoare annotation was computed. [2021-07-06 15:59:21,932 INFO L762 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-07-06 15:59:21,932 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,933 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,933 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-06 15:59:21,933 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,933 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:59:21,933 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,933 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:59:21,933 INFO L762 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,934 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,934 INFO L762 garLoopResultBuilder]: For program point L28-2(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,934 INFO L762 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,934 INFO L762 garLoopResultBuilder]: For program point L24(lines 24 26) no Hoare annotation was computed. [2021-07-06 15:59:21,934 INFO L762 garLoopResultBuilder]: For program point L24-2(lines 23 32) no Hoare annotation was computed. [2021-07-06 15:59:21,934 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,935 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,935 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,935 INFO L762 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,935 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:59:21,935 INFO L762 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,935 INFO L762 garLoopResultBuilder]: For program point L33-2(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,935 INFO L762 garLoopResultBuilder]: For program point L33-4(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,936 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,936 INFO L762 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,936 INFO L762 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,936 INFO L762 garLoopResultBuilder]: For program point L25-2(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,936 INFO L762 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,936 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2021-07-06 15:59:21,937 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,937 INFO L758 garLoopResultBuilder]: At program point L34(lines 19 35) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) [2021-07-06 15:59:21,937 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-07-06 15:59:21,937 INFO L762 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,937 INFO L762 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,937 INFO L762 garLoopResultBuilder]: For program point L30-2(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,937 INFO L762 garLoopResultBuilder]: For program point L30-3(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,938 INFO L762 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-07-06 15:59:21,938 INFO L762 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-07-06 15:59:21,938 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-07-06 15:59:21,938 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:59:21,938 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-06 15:59:21,938 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:59:21,939 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (3/14) [2021-07-06 15:59:21,940 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:59:21,940 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:59:21,941 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:59:21,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 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) [2021-07-06 15:59:21,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-07-06 15:59:21,942 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:59:21,942 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:59:21,942 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:59:21,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:59:21,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1387960170, now seen corresponding path program 1 times [2021-07-06 15:59:21,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:59:21,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051222878] [2021-07-06 15:59:21,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:59:21,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:59:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 15:59:21,961 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 15:59:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 15:59:21,985 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 15:59:21,999 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 15:59:21,999 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-06 15:59:21,999 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-06 15:59:21,999 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:59:22,000 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW was UNSAFE (4/14) [2021-07-06 15:59:22,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.07 03:59:22 BoogieIcfgContainer [2021-07-06 15:59:22,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-06 15:59:22,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 15:59:22,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 15:59:22,022 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 15:59:22,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:59:21" (3/4) ... [2021-07-06 15:59:22,023 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-06 15:59:22,054 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 15:59:22,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 15:59:22,056 INFO L168 Benchmark]: Toolchain (without parser) took 1199.23 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 47.9 MB in the beginning and 47.1 MB in the end (delta: 827.7 kB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2021-07-06 15:59:22,056 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:59:22,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.63 ms. Allocated memory is still 67.1 MB. Free memory was 47.8 MB in the beginning and 38.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 15:59:22,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.02 ms. Allocated memory is still 67.1 MB. Free memory was 38.2 MB in the beginning and 50.8 MB in the end (delta: -12.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 15:59:22,057 INFO L168 Benchmark]: Boogie Preprocessor took 30.28 ms. Allocated memory is still 67.1 MB. Free memory was 50.8 MB in the beginning and 49.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:59:22,057 INFO L168 Benchmark]: RCFGBuilder took 328.85 ms. Allocated memory is still 67.1 MB. Free memory was 49.8 MB in the beginning and 34.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-06 15:59:22,057 INFO L168 Benchmark]: TraceAbstraction took 577.46 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 34.3 MB in the beginning and 48.5 MB in the end (delta: -14.1 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-07-06 15:59:22,057 INFO L168 Benchmark]: Witness Printer took 33.17 ms. Allocated memory is still 96.5 MB. Free memory was 48.5 MB in the beginning and 47.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 15:59:22,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 175.63 ms. Allocated memory is still 67.1 MB. Free memory was 47.8 MB in the beginning and 38.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.02 ms. Allocated memory is still 67.1 MB. Free memory was 38.2 MB in the beginning and 50.8 MB in the end (delta: -12.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.28 ms. Allocated memory is still 67.1 MB. Free memory was 50.8 MB in the beginning and 49.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 328.85 ms. Allocated memory is still 67.1 MB. Free memory was 49.8 MB in the beginning and 34.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 577.46 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 34.3 MB in the beginning and 48.5 MB in the end (delta: -14.1 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * Witness Printer took 33.17 ms. Allocated memory is still 96.5 MB. Free memory was 48.5 MB in the beginning and 47.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - CounterExampleResult [Line: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x