./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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-industry-pattern/mod3.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6774d8276995139fa82226959a0a91ee830b52b2 ..................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 03:09:07,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 03:09:07,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 03:09:07,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 03:09:07,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 03:09:07,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 03:09:07,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 03:09:07,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 03:09:07,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 03:09:07,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 03:09:07,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 03:09:07,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 03:09:07,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 03:09:07,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 03:09:07,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 03:09:07,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 03:09:07,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 03:09:07,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 03:09:07,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 03:09:07,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 03:09:07,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 03:09:07,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 03:09:07,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 03:09:07,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 03:09:07,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 03:09:07,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 03:09:07,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 03:09:07,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 03:09:07,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 03:09:07,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 03:09:07,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 03:09:07,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 03:09:07,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 03:09:07,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 03:09:07,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 03:09:07,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 03:09:07,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 03:09:07,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 03:09:07,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 03:09:07,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 03:09:07,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 03:09:07,349 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 03:09:07,384 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 03:09:07,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 03:09:07,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 03:09:07,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 03:09:07,388 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 03:09:07,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 03:09:07,389 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 03:09:07,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 03:09:07,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 03:09:07,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 03:09:07,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 03:09:07,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 03:09:07,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 03:09:07,391 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 03:09:07,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 03:09:07,391 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 03:09:07,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 03:09:07,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 03:09:07,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 03:09:07,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 03:09:07,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 03:09:07,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 03:09:07,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 03:09:07,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 03:09:07,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 03:09:07,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 03:09:07,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 03:09:07,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 03:09:07,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6774d8276995139fa82226959a0a91ee830b52b2 [2021-07-05 03:09:07,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 03:09:07,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 03:09:07,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 03:09:07,758 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 03:09:07,758 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 03:09:07,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2021-07-05 03:09:07,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420e36adc/4af9c882adc84e28af42ab46a5d3b322/FLAGe1e7a6002 [2021-07-05 03:09:08,277 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 03:09:08,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2021-07-05 03:09:08,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420e36adc/4af9c882adc84e28af42ab46a5d3b322/FLAGe1e7a6002 [2021-07-05 03:09:08,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420e36adc/4af9c882adc84e28af42ab46a5d3b322 [2021-07-05 03:09:08,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 03:09:08,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 03:09:08,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 03:09:08,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 03:09:08,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 03:09:08,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:09:08" (1/1) ... [2021-07-05 03:09:08,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4051f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08, skipping insertion in model container [2021-07-05 03:09:08,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:09:08" (1/1) ... [2021-07-05 03:09:08,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 03:09:08,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 03:09:08,451 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-industry-pattern/mod3.c.v+lhb-reducer.c[2239,2252] [2021-07-05 03:09:08,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 03:09:08,501 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 03:09:08,517 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-industry-pattern/mod3.c.v+lhb-reducer.c[2239,2252] [2021-07-05 03:09:08,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 03:09:08,531 INFO L208 MainTranslator]: Completed translation [2021-07-05 03:09:08,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08 WrapperNode [2021-07-05 03:09:08,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 03:09:08,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 03:09:08,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 03:09:08,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 03:09:08,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08" (1/1) ... [2021-07-05 03:09:08,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08" (1/1) ... [2021-07-05 03:09:08,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 03:09:08,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 03:09:08,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 03:09:08,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 03:09:08,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08" (1/1) ... [2021-07-05 03:09:08,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08" (1/1) ... [2021-07-05 03:09:08,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08" (1/1) ... [2021-07-05 03:09:08,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08" (1/1) ... [2021-07-05 03:09:08,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08" (1/1) ... [2021-07-05 03:09:08,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08" (1/1) ... [2021-07-05 03:09:08,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08" (1/1) ... [2021-07-05 03:09:08,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 03:09:08,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 03:09:08,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 03:09:08,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 03:09:08,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08" (1/1) ... [2021-07-05 03:09:08,600 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 03:09:08,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 03:09:08,616 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) [2021-07-05 03:09:08,642 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 [2021-07-05 03:09:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 03:09:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 03:09:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 03:09:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 03:09:17,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 03:09:17,715 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-05 03:09:17,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:09:17 BoogieIcfgContainer [2021-07-05 03:09:17,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 03:09:17,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 03:09:17,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 03:09:17,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 03:09:17,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 03:09:08" (1/3) ... [2021-07-05 03:09:17,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be8cbb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:09:17, skipping insertion in model container [2021-07-05 03:09:17,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:09:08" (2/3) ... [2021-07-05 03:09:17,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be8cbb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:09:17, skipping insertion in model container [2021-07-05 03:09:17,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:09:17" (3/3) ... [2021-07-05 03:09:17,728 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2021-07-05 03:09:17,734 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 03:09:17,734 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-05 03:09:17,784 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 03:09:17,791 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 [2021-07-05 03:09:17,792 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 03:09:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 states have internal predecessors, (32), 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) [2021-07-05 03:09:17,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-05 03:09:17,809 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 03:09:17,810 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 03:09:17,810 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 03:09:17,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 03:09:17,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1053789450, now seen corresponding path program 1 times [2021-07-05 03:09:17,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 03:09:17,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531730500] [2021-07-05 03:09:17,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 03:09:17,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 03:09:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 03:09:18,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 03:09:18,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 03:09:18,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 03:09:18,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-07-05 03:09:18,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 03:09:18,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 03:09:18,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 03:09:18,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 03:09:18,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 03:09:18,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 03:09:18,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531730500] [2021-07-05 03:09:18,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531730500] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 03:09:18,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 03:09:18,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 03:09:18,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3920839] [2021-07-05 03:09:18,211 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 03:09:18,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 03:09:18,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 03:09:18,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 03:09:18,227 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-07-05 03:09:33,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 03:09:33,626 INFO L93 Difference]: Finished difference Result 61 states and 82 transitions. [2021-07-05 03:09:33,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 03:09:33,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-07-05 03:09:33,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 03:09:33,634 INFO L225 Difference]: With dead ends: 61 [2021-07-05 03:09:33,634 INFO L226 Difference]: Without dead ends: 26 [2021-07-05 03:09:33,637 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 76.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 03:09:33,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-07-05 03:09:33,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2021-07-05 03:09:33,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 03:09:33,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2021-07-05 03:09:33,662 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 11 [2021-07-05 03:09:33,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 03:09:33,663 INFO L442 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-07-05 03:09:33,663 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-07-05 03:09:33,663 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2021-07-05 03:09:33,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-05 03:09:33,664 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 03:09:33,664 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 03:09:33,664 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 03:09:33,664 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 03:09:33,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 03:09:33,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1942403648, now seen corresponding path program 1 times [2021-07-05 03:09:33,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 03:09:33,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429390821] [2021-07-05 03:09:33,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 03:09:33,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 03:09:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 03:09:33,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 03:09:33,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 03:09:33,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 03:09:33,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-07-05 03:09:33,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 03:09:33,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-07-05 03:09:33,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 03:09:33,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 03:09:33,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 03:09:33,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 03:09:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 03:09:33,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 03:09:33,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429390821] [2021-07-05 03:09:33,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429390821] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 03:09:33,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 03:09:33,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 03:09:33,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028512091] [2021-07-05 03:09:33,836 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 03:09:33,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 03:09:33,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 03:09:33,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 03:09:33,838 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 03:09:38,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 03:09:38,310 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2021-07-05 03:09:38,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 03:09:38,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-07-05 03:09:38,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 03:09:38,311 INFO L225 Difference]: With dead ends: 46 [2021-07-05 03:09:38,311 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 03:09:38,312 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 03:09:38,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 03:09:38,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 03:09:38,313 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) [2021-07-05 03:09:38,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 03:09:38,313 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-07-05 03:09:38,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 03:09:38,313 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 03:09:38,313 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 03:09:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 03:09:38,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 03:09:38,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 03:09:38,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 03:09:38,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 03:09:38,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 03:09:38,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 03:09:38,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 03:09:38,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 03:09:38,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 03:09:38,358 INFO L762 garLoopResultBuilder]: For program point L97(lines 97 106) no Hoare annotation was computed. [2021-07-05 03:09:38,366 INFO L758 garLoopResultBuilder]: At program point L122(lines 25 145) the Hoare annotation is: (<= ULTIMATE.start_main_~main__x~0 (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse1 (- 3)) .cse2) 4294967296))))))) [2021-07-05 03:09:38,366 INFO L758 garLoopResultBuilder]: At program point L56(lines 26 114) the Hoare annotation is: (<= ULTIMATE.start_main_~main__x~0 (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse1 (- 3)) .cse2) 4294967296))))))) [2021-07-05 03:09:38,366 INFO L762 garLoopResultBuilder]: For program point L23(lines 23 150) no Hoare annotation was computed. [2021-07-05 03:09:38,367 INFO L762 garLoopResultBuilder]: For program point L48(lines 48 85) no Hoare annotation was computed. [2021-07-05 03:09:38,367 INFO L758 garLoopResultBuilder]: At program point L44(lines 26 114) the Hoare annotation is: (<= ULTIMATE.start_main_~main__x~0 (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse1 (- 3)) .cse2) 4294967296))))))) [2021-07-05 03:09:38,367 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 03:09:38,367 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 03:09:38,368 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 03:09:38,368 INFO L762 garLoopResultBuilder]: For program point L90(lines 90 112) no Hoare annotation was computed. [2021-07-05 03:09:38,368 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 99) no Hoare annotation was computed. [2021-07-05 03:09:38,369 INFO L762 garLoopResultBuilder]: For program point L37(lines 37 113) no Hoare annotation was computed. [2021-07-05 03:09:38,369 INFO L762 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2021-07-05 03:09:38,369 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 03:09:38,369 INFO L762 garLoopResultBuilder]: For program point L128(lines 128 143) no Hoare annotation was computed. [2021-07-05 03:09:38,369 INFO L762 garLoopResultBuilder]: For program point L62(lines 62 84) no Hoare annotation was computed. [2021-07-05 03:09:38,370 INFO L762 garLoopResultBuilder]: For program point L25(lines 25 145) no Hoare annotation was computed. [2021-07-05 03:09:38,370 INFO L765 garLoopResultBuilder]: At program point L149(lines 16 151) the Hoare annotation is: true [2021-07-05 03:09:38,371 INFO L765 garLoopResultBuilder]: At program point L83(lines 17 151) the Hoare annotation is: true [2021-07-05 03:09:38,374 INFO L762 garLoopResultBuilder]: For program point L117(lines 117 144) no Hoare annotation was computed. [2021-07-05 03:09:38,375 INFO L765 garLoopResultBuilder]: At program point L142(lines 25 145) the Hoare annotation is: true [2021-07-05 03:09:38,375 INFO L762 garLoopResultBuilder]: For program point L39(lines 39 86) no Hoare annotation was computed. [2021-07-05 03:09:38,375 INFO L765 garLoopResultBuilder]: At program point L134(lines 25 145) the Hoare annotation is: true [2021-07-05 03:09:38,376 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-05 03:09:38,377 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 03:09:38,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 03:09:38 BoogieIcfgContainer [2021-07-05 03:09:38,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 03:09:38,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 03:09:38,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 03:09:38,395 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 03:09:38,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:09:17" (3/4) ... [2021-07-05 03:09:38,398 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-05 03:09:38,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-07-05 03:09:38,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-05 03:09:38,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-05 03:09:38,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-05 03:09:38,445 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 03:09:38,448 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 03:09:38,449 INFO L168 Benchmark]: Toolchain (without parser) took 30139.79 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.9 MB in the beginning and 27.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2021-07-05 03:09:38,449 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 03:09:38,449 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.21 ms. Allocated memory is still 58.7 MB. Free memory was 36.7 MB in the beginning and 40.7 MB in the end (delta: -4.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-05 03:09:38,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.79 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 39.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 03:09:38,450 INFO L168 Benchmark]: Boogie Preprocessor took 29.51 ms. Allocated memory is still 58.7 MB. Free memory was 39.1 MB in the beginning and 38.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 03:09:38,450 INFO L168 Benchmark]: RCFGBuilder took 9126.27 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 37.9 MB in the beginning and 49.2 MB in the end (delta: -11.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2021-07-05 03:09:38,450 INFO L168 Benchmark]: TraceAbstraction took 20671.99 ms. Allocated memory is still 71.3 MB. Free memory was 48.7 MB in the beginning and 31.2 MB in the end (delta: 17.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-07-05 03:09:38,451 INFO L168 Benchmark]: Witness Printer took 53.29 ms. Allocated memory is still 71.3 MB. Free memory was 31.2 MB in the beginning and 27.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-05 03:09:38,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 221.21 ms. Allocated memory is still 58.7 MB. Free memory was 36.7 MB in the beginning and 40.7 MB in the end (delta: -4.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.79 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 39.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.51 ms. Allocated memory is still 58.7 MB. Free memory was 39.1 MB in the beginning and 38.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 9126.27 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 37.9 MB in the beginning and 49.2 MB in the end (delta: -11.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20671.99 ms. Allocated memory is still 71.3 MB. Free memory was 48.7 MB in the beginning and 31.2 MB in the end (delta: 17.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * Witness Printer took 53.29 ms. Allocated memory is still 71.3 MB. Free memory was 31.2 MB in the beginning and 27.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 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 - PositiveResult [Line: 99]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20598.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.9ms, AutomataDifference: 19898.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 41.8ms, InitialAbstractionConstructionTime: 10.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 52 SDtfs, 17 SDslu, 74 SDs, 0 SdLazy, 39 SolverSat, 5 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 18192.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 142.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=1, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 15.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 17 NumberOfFragments, 127 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 19.6ms HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 16.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 15.8ms SsaConstructionTime, 121.4ms SatisfiabilityAnalysisTime, 344.5ms InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 347 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 4294967296 * ((main__x + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3 + main__x / 4294967296 * -4294967296) / 4294967296) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 4294967296 * ((main__x + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3 + main__x / 4294967296 * -4294967296) / 4294967296) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 4294967296 * ((main__x + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3 + main__x / 4294967296 * -4294967296) / 4294967296) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-07-05 03:09:38,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...