./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/for_bounded_loop1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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/loops/for_bounded_loop1.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 108d15887a93306fe736fe6c2e7f14ff3dbea99b .......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 22:15:44,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:15:44,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:15:44,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:15:44,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:15:44,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:15:44,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:15:44,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:15:44,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:15:44,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:15:44,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:15:44,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:15:44,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:15:44,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:15:44,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:15:44,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:15:44,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:15:44,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:15:44,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:15:44,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:15:44,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:15:44,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:15:44,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:15:44,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:15:44,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:15:44,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:15:44,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:15:44,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:15:44,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:15:44,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:15:44,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:15:44,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:15:44,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:15:44,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:15:44,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:15:44,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:15:44,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:15:44,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:15:44,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:15:44,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:15:44,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:15:44,685 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 22:15:44,743 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:15:44,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:15:44,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:15:44,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:15:44,745 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:15:44,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:15:44,746 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:15:44,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 22:15:44,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:15:44,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:15:44,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:15:44,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:15:44,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:15:44,748 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:15:44,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:15:44,748 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:15:44,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:15:44,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:15:44,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:15:44,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:15:44,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:15:44,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:15:44,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:15:44,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:15:44,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:15:44,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 22:15:44,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 22:15:44,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:15:44,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:15:44,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 108d15887a93306fe736fe6c2e7f14ff3dbea99b [2020-10-25 22:15:45,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:15:45,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:15:45,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:15:45,151 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:15:45,152 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:15:45,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/for_bounded_loop1.c [2020-10-25 22:15:45,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8728f21f/fd5f5e9cfcb741a085d67a11574753de/FLAG71e2c5a53 [2020-10-25 22:15:45,911 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:15:45,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/for_bounded_loop1.c [2020-10-25 22:15:45,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8728f21f/fd5f5e9cfcb741a085d67a11574753de/FLAG71e2c5a53 [2020-10-25 22:15:46,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8728f21f/fd5f5e9cfcb741a085d67a11574753de [2020-10-25 22:15:46,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:15:46,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:15:46,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:15:46,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:15:46,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:15:46,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:15:46" (1/1) ... [2020-10-25 22:15:46,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@addda6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46, skipping insertion in model container [2020-10-25 22:15:46,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:15:46" (1/1) ... [2020-10-25 22:15:46,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:15:46,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:15:46,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:15:46,556 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:15:46,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:15:46,590 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:15:46,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46 WrapperNode [2020-10-25 22:15:46,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:15:46,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:15:46,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:15:46,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:15:46,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46" (1/1) ... [2020-10-25 22:15:46,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46" (1/1) ... [2020-10-25 22:15:46,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:15:46,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:15:46,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:15:46,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:15:46,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46" (1/1) ... [2020-10-25 22:15:46,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46" (1/1) ... [2020-10-25 22:15:46,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46" (1/1) ... [2020-10-25 22:15:46,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46" (1/1) ... [2020-10-25 22:15:46,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46" (1/1) ... [2020-10-25 22:15:46,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46" (1/1) ... [2020-10-25 22:15:46,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46" (1/1) ... [2020-10-25 22:15:46,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:15:46,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:15:46,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:15:46,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:15:46,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:15:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 22:15:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 22:15:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:15:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:15:46,973 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:15:46,974 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-10-25 22:15:46,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:15:46 BoogieIcfgContainer [2020-10-25 22:15:46,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:15:46,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:15:46,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:15:46,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:15:46,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:15:46" (1/3) ... [2020-10-25 22:15:46,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2987c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:15:46, skipping insertion in model container [2020-10-25 22:15:46,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:15:46" (2/3) ... [2020-10-25 22:15:46,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2987c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:15:46, skipping insertion in model container [2020-10-25 22:15:46,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:15:46" (3/3) ... [2020-10-25 22:15:46,999 INFO L111 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2020-10-25 22:15:47,033 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:15:47,046 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 22:15:47,080 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 22:15:47,148 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:15:47,148 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:15:47,149 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:15:47,149 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:15:47,149 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:15:47,149 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:15:47,149 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:15:47,150 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:15:47,168 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-25 22:15:47,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-25 22:15:47,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:15:47,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-25 22:15:47,176 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:15:47,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:15:47,183 INFO L82 PathProgramCache]: Analyzing trace with hash 889574253, now seen corresponding path program 1 times [2020-10-25 22:15:47,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:15:47,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885849571] [2020-10-25 22:15:47,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:15:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:15:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:15:47,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885849571] [2020-10-25 22:15:47,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:15:47,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 22:15:47,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338792069] [2020-10-25 22:15:47,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 22:15:47,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:15:47,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 22:15:47,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 22:15:47,466 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2020-10-25 22:15:47,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:15:47,585 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2020-10-25 22:15:47,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 22:15:47,588 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-10-25 22:15:47,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:15:47,598 INFO L225 Difference]: With dead ends: 51 [2020-10-25 22:15:47,598 INFO L226 Difference]: Without dead ends: 20 [2020-10-25 22:15:47,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:15:47,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-25 22:15:47,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-10-25 22:15:47,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-25 22:15:47,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-10-25 22:15:47,642 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2020-10-25 22:15:47,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:15:47,643 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-10-25 22:15:47,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 22:15:47,643 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-10-25 22:15:47,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-25 22:15:47,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:15:47,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:15:47,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 22:15:47,645 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:15:47,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:15:47,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1365090645, now seen corresponding path program 1 times [2020-10-25 22:15:47,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:15:47,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345085387] [2020-10-25 22:15:47,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:15:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:15:47,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:15:47,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345085387] [2020-10-25 22:15:47,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:15:47,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 22:15:47,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028088556] [2020-10-25 22:15:47,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 22:15:47,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:15:47,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 22:15:47,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:15:47,744 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 5 states. [2020-10-25 22:15:47,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:15:47,836 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-10-25 22:15:47,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 22:15:47,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-25 22:15:47,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:15:47,838 INFO L225 Difference]: With dead ends: 24 [2020-10-25 22:15:47,838 INFO L226 Difference]: Without dead ends: 22 [2020-10-25 22:15:47,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-25 22:15:47,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-25 22:15:47,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-25 22:15:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-25 22:15:47,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-10-25 22:15:47,846 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 9 [2020-10-25 22:15:47,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:15:47,847 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-10-25 22:15:47,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 22:15:47,847 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-10-25 22:15:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-25 22:15:47,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:15:47,848 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:15:47,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 22:15:47,849 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:15:47,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:15:47,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1623172870, now seen corresponding path program 1 times [2020-10-25 22:15:47,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:15:47,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059034894] [2020-10-25 22:15:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:15:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:15:48,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:15:48,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059034894] [2020-10-25 22:15:48,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12289813] [2020-10-25 22:15:48,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 22:15:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:15:48,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-25 22:15:48,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:15:48,213 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:15:48,222 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-25 22:15:48,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:15:48,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 22:15:48,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-10-25 22:15:48,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912059456] [2020-10-25 22:15:48,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-25 22:15:48,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:15:48,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-25 22:15:48,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 22:15:48,245 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 7 states. [2020-10-25 22:15:48,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:15:48,315 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-10-25 22:15:48,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 22:15:48,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-10-25 22:15:48,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:15:48,317 INFO L225 Difference]: With dead ends: 22 [2020-10-25 22:15:48,317 INFO L226 Difference]: Without dead ends: 18 [2020-10-25 22:15:48,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-25 22:15:48,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-25 22:15:48,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2020-10-25 22:15:48,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-25 22:15:48,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-10-25 22:15:48,323 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2020-10-25 22:15:48,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:15:48,323 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-10-25 22:15:48,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-25 22:15:48,323 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-10-25 22:15:48,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-25 22:15:48,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:15:48,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:15:48,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-25 22:15:48,535 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:15:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:15:48,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1221221823, now seen corresponding path program 1 times [2020-10-25 22:15:48,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:15:48,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222870459] [2020-10-25 22:15:48,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:15:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 22:15:48,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 22:15:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 22:15:48,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 22:15:48,640 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 22:15:48,640 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 22:15:48,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 22:15:48,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:15:48 BoogieIcfgContainer [2020-10-25 22:15:48,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 22:15:48,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 22:15:48,672 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 22:15:48,672 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 22:15:48,673 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:15:46" (3/4) ... [2020-10-25 22:15:48,675 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 22:15:48,724 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 22:15:48,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 22:15:48,729 INFO L168 Benchmark]: Toolchain (without parser) took 2433.18 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 22.9 MB in the beginning and 47.7 MB in the end (delta: -24.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:15:48,730 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 35.7 MB. Free memory is still 20.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:15:48,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.62 ms. Allocated memory is still 46.1 MB. Free memory was 22.4 MB in the beginning and 22.1 MB in the end (delta: 267.7 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-25 22:15:48,735 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.67 ms. Allocated memory is still 46.1 MB. Free memory was 22.1 MB in the beginning and 20.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:15:48,736 INFO L168 Benchmark]: Boogie Preprocessor took 24.73 ms. Allocated memory is still 46.1 MB. Free memory was 20.7 MB in the beginning and 19.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:15:48,737 INFO L168 Benchmark]: RCFGBuilder took 319.08 ms. Allocated memory is still 46.1 MB. Free memory was 19.6 MB in the beginning and 19.3 MB in the end (delta: 235.1 kB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-10-25 22:15:48,738 INFO L168 Benchmark]: TraceAbstraction took 1692.98 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 18.8 MB in the beginning and 49.9 MB in the end (delta: -31.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 22:15:48,738 INFO L168 Benchmark]: Witness Printer took 53.04 ms. Allocated memory is still 69.2 MB. Free memory was 49.9 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:15:48,744 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 35.7 MB. Free memory is still 20.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.62 ms. Allocated memory is still 46.1 MB. Free memory was 22.4 MB in the beginning and 22.1 MB in the end (delta: 267.7 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.67 ms. Allocated memory is still 46.1 MB. Free memory was 22.1 MB in the beginning and 20.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.73 ms. Allocated memory is still 46.1 MB. Free memory was 20.7 MB in the beginning and 19.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 319.08 ms. Allocated memory is still 46.1 MB. Free memory was 19.6 MB in the beginning and 19.3 MB in the end (delta: 235.1 kB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1692.98 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 18.8 MB in the beginning and 49.9 MB in the end (delta: -31.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 53.04 ms. Allocated memory is still 69.2 MB. Free memory was 49.9 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int i=0, x=0, y=0; [L20] int n=__VERIFIER_nondet_int(); [L21] COND FALSE !(!(n>0)) [L22] i=0 [L22] COND TRUE i