./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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/ldv-regression/test05.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 05c65c7d68b3a37a7b43ddbea39e95d8b1d121ee .................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:43:38,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:43:38,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:43:38,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:43:38,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:43:38,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:43:38,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:43:38,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:43:38,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:43:38,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:43:38,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:43:38,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:43:38,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:43:38,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:43:38,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:43:38,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:43:38,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:43:38,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:43:38,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:43:38,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:43:38,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:43:38,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:43:38,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:43:38,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:43:38,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:43:38,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:43:38,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:43:38,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:43:38,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:43:38,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:43:38,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:43:38,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:43:38,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:43:38,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:43:38,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:43:38,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:43:38,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:43:38,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:43:38,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:43:38,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:43:38,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:43:38,606 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:43:38,629 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:43:38,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:43:38,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:43:38,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:43:38,631 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:43:38,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:43:38,632 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:43:38,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:43:38,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:43:38,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:43:38,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:43:38,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:43:38,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:43:38,633 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:43:38,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:43:38,634 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:43:38,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:43:38,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:43:38,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:43:38,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:43:38,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:43:38,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:43:38,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:43:38,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:43:38,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:43:38,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:43:38,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:43:38,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:43:38,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:43:38,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 05c65c7d68b3a37a7b43ddbea39e95d8b1d121ee [2020-10-20 00:43:38,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:43:38,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:43:38,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:43:38,853 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:43:38,853 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:43:38,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test05.c [2020-10-20 00:43:38,920 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9544379c3/e05bce1ce925484d93754745a67e2db7/FLAG73004e5b9 [2020-10-20 00:43:39,421 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:43:39,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test05.c [2020-10-20 00:43:39,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9544379c3/e05bce1ce925484d93754745a67e2db7/FLAG73004e5b9 [2020-10-20 00:43:39,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9544379c3/e05bce1ce925484d93754745a67e2db7 [2020-10-20 00:43:39,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:43:39,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:43:39,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:43:39,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:43:39,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:43:39,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:43:39" (1/1) ... [2020-10-20 00:43:39,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43c3ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:39, skipping insertion in model container [2020-10-20 00:43:39,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:43:39" (1/1) ... [2020-10-20 00:43:39,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:43:39,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:43:40,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:43:40,079 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:43:40,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:43:40,115 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:43:40,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:40 WrapperNode [2020-10-20 00:43:40,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:43:40,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:43:40,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:43:40,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:43:40,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:40" (1/1) ... [2020-10-20 00:43:40,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:40" (1/1) ... [2020-10-20 00:43:40,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:43:40,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:43:40,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:43:40,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:43:40,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:40" (1/1) ... [2020-10-20 00:43:40,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:40" (1/1) ... [2020-10-20 00:43:40,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:40" (1/1) ... [2020-10-20 00:43:40,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:40" (1/1) ... [2020-10-20 00:43:40,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:40" (1/1) ... [2020-10-20 00:43:40,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:40" (1/1) ... [2020-10-20 00:43:40,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:40" (1/1) ... [2020-10-20 00:43:40,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:43:40,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:43:40,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:43:40,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:43:40,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:40" (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 [2020-10-20 00:43:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 00:43:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:43:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 00:43:40,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:43:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:43:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:43:40,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:43:40,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:43:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:43:40,645 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:43:40,646 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 00:43:40,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:40 BoogieIcfgContainer [2020-10-20 00:43:40,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:43:40,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:43:40,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:43:40,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:43:40,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:43:39" (1/3) ... [2020-10-20 00:43:40,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125e04f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:43:40, skipping insertion in model container [2020-10-20 00:43:40,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:40" (2/3) ... [2020-10-20 00:43:40,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125e04f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:43:40, skipping insertion in model container [2020-10-20 00:43:40,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:40" (3/3) ... [2020-10-20 00:43:40,663 INFO L111 eAbstractionObserver]: Analyzing ICFG test05.c [2020-10-20 00:43:40,675 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:43:40,682 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:43:40,696 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:43:40,718 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:43:40,718 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:43:40,718 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:43:40,719 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:43:40,719 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:43:40,719 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:43:40,719 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:43:40,719 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:43:40,732 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-10-20 00:43:40,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 00:43:40,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:40,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 00:43:40,737 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:40,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:40,742 INFO L82 PathProgramCache]: Analyzing trace with hash 889629870, now seen corresponding path program 1 times [2020-10-20 00:43:40,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:40,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168969905] [2020-10-20 00:43:40,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:40,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:43:40,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168969905] [2020-10-20 00:43:40,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:40,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 00:43:40,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319387741] [2020-10-20 00:43:40,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 00:43:40,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:40,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 00:43:40,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 00:43:40,989 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2020-10-20 00:43:41,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:41,018 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-10-20 00:43:41,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 00:43:41,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-20 00:43:41,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:41,036 INFO L225 Difference]: With dead ends: 21 [2020-10-20 00:43:41,036 INFO L226 Difference]: Without dead ends: 9 [2020-10-20 00:43:41,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 00:43:41,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-10-20 00:43:41,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-20 00:43:41,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-20 00:43:41,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-10-20 00:43:41,077 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2020-10-20 00:43:41,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:41,077 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-10-20 00:43:41,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 00:43:41,077 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-10-20 00:43:41,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 00:43:41,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:41,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:41,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:43:41,079 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:41,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:41,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1804905807, now seen corresponding path program 1 times [2020-10-20 00:43:41,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:41,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067731007] [2020-10-20 00:43:41,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:43:41,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067731007] [2020-10-20 00:43:41,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:41,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 00:43:41,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654676899] [2020-10-20 00:43:41,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 00:43:41,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:41,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 00:43:41,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 00:43:41,232 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-10-20 00:43:41,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:41,267 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-10-20 00:43:41,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:43:41,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 00:43:41,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:41,268 INFO L225 Difference]: With dead ends: 11 [2020-10-20 00:43:41,268 INFO L226 Difference]: Without dead ends: 9 [2020-10-20 00:43:41,269 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 [2020-10-20 00:43:41,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-10-20 00:43:41,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-20 00:43:41,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-20 00:43:41,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2020-10-20 00:43:41,272 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 7 [2020-10-20 00:43:41,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:41,273 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2020-10-20 00:43:41,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 00:43:41,273 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-10-20 00:43:41,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 00:43:41,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:41,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:41,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:43:41,274 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:41,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:41,274 INFO L82 PathProgramCache]: Analyzing trace with hash 117506990, now seen corresponding path program 1 times [2020-10-20 00:43:41,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:41,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115222952] [2020-10-20 00:43:41,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:41,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:43:41,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115222952] [2020-10-20 00:43:41,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:41,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 00:43:41,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286952075] [2020-10-20 00:43:41,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:43:41,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:41,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:43:41,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:43:41,563 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 6 states. [2020-10-20 00:43:41,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:41,627 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-10-20 00:43:41,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:43:41,627 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-10-20 00:43:41,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:41,628 INFO L225 Difference]: With dead ends: 9 [2020-10-20 00:43:41,628 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:43:41,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:43:41,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:43:41,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:43:41,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:43:41,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:43:41,631 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-10-20 00:43:41,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:41,631 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:43:41,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:43:41,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:43:41,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:43:41,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 00:43:41,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:43:41,681 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:43:41,682 INFO L274 CegarLoopResult]: For program point L40(lines 40 42) no Hoare annotation was computed. [2020-10-20 00:43:41,682 INFO L274 CegarLoopResult]: For program point L36(lines 36 38) no Hoare annotation was computed. [2020-10-20 00:43:41,682 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:43:41,682 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:43:41,682 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:43:41,682 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:43:41,682 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:43:41,683 INFO L270 CegarLoopResult]: At program point L18(lines 13 20) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#p1~0.base|) |ULTIMATE.start_main_~#p1~0.offset|))) (and (= |ULTIMATE.start_f_#res| 1) (not (= |ULTIMATE.start_main_~#a~0.base| .cse0)) (not (= |ULTIMATE.start_main_~#a~0.base| |ULTIMATE.start_main_~#p1~0.base|)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#p1~0.base|) |ULTIMATE.start_main_~#p1~0.offset|)) 0) (= ULTIMATE.start_f_~a 4))) [2020-10-20 00:43:41,684 INFO L270 CegarLoopResult]: At program point L47(lines 22 48) the Hoare annotation is: (= ULTIMATE.start_f_~a 4) [2020-10-20 00:43:41,684 INFO L274 CegarLoopResult]: For program point L14(lines 14 19) no Hoare annotation was computed. [2020-10-20 00:43:41,684 INFO L270 CegarLoopResult]: At program point L41(lines 22 48) the Hoare annotation is: false [2020-10-20 00:43:41,684 INFO L274 CegarLoopResult]: For program point L6(lines 6 11) no Hoare annotation was computed. [2020-10-20 00:43:41,706 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 00:43:41,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 00:43:41,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-20 00:43:41,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 00:43:41,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:43:41,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 00:43:41,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 00:43:41,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 00:43:41,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 00:43:41,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-20 00:43:41,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 00:43:41,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:43:41,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 00:43:41,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 00:43:41,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:43:41 BoogieIcfgContainer [2020-10-20 00:43:41,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:43:41,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:43:41,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:43:41,719 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:43:41,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:40" (3/4) ... [2020-10-20 00:43:41,724 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:43:41,755 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-10-20 00:43:41,757 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-10-20 00:43:41,758 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:43:41,758 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:43:41,804 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == 1 && !(a == #memory_$Pointer$[p1][p1])) && !(a == p1)) && unknown-#memory_int-unknown[#memory_$Pointer$[p1][p1]][#memory_$Pointer$[p1][p1]] == 0) && a == 4 [2020-10-20 00:43:41,849 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:43:41,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:43:41,852 INFO L168 Benchmark]: Toolchain (without parser) took 1999.40 ms. Allocated memory was 40.9 MB in the beginning and 47.7 MB in the end (delta: 6.8 MB). Free memory was 18.8 MB in the beginning and 12.6 MB in the end (delta: 6.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:41,852 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 31.5 MB. Free memory was 7.6 MB in the beginning and 7.6 MB in the end (delta: 42.1 kB). Peak memory consumption was 42.1 kB. Max. memory is 14.3 GB. [2020-10-20 00:43:41,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.51 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 17.8 MB in the beginning and 17.8 MB in the end (delta: 42.5 kB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:41,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.90 ms. Allocated memory is still 41.9 MB. Free memory was 17.8 MB in the beginning and 15.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:41,858 INFO L168 Benchmark]: Boogie Preprocessor took 27.61 ms. Allocated memory is still 41.9 MB. Free memory was 15.8 MB in the beginning and 14.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:41,859 INFO L168 Benchmark]: RCFGBuilder took 463.03 ms. Allocated memory was 41.9 MB in the beginning and 44.0 MB in the end (delta: 2.1 MB). Free memory was 14.4 MB in the beginning and 11.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:41,862 INFO L168 Benchmark]: TraceAbstraction took 1069.45 ms. Allocated memory was 44.0 MB in the beginning and 47.7 MB in the end (delta: 3.7 MB). Free memory was 10.9 MB in the beginning and 16.1 MB in the end (delta: -5.2 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:43:41,862 INFO L168 Benchmark]: Witness Printer took 130.90 ms. Allocated memory is still 47.7 MB. Free memory was 16.1 MB in the beginning and 12.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:41,865 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 31.5 MB. Free memory was 7.6 MB in the beginning and 7.6 MB in the end (delta: 42.1 kB). Peak memory consumption was 42.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 257.51 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 17.8 MB in the beginning and 17.8 MB in the end (delta: 42.5 kB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 39.90 ms. Allocated memory is still 41.9 MB. Free memory was 17.8 MB in the beginning and 15.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 27.61 ms. Allocated memory is still 41.9 MB. Free memory was 15.8 MB in the beginning and 14.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 463.03 ms. Allocated memory was 41.9 MB in the beginning and 44.0 MB in the end (delta: 2.1 MB). Free memory was 14.4 MB in the beginning and 11.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1069.45 ms. Allocated memory was 44.0 MB in the beginning and 47.7 MB in the end (delta: 3.7 MB). Free memory was 10.9 MB in the beginning and 16.1 MB in the end (delta: -5.2 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 130.90 ms. Allocated memory is still 47.7 MB. Free memory was 16.1 MB in the beginning and 12.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: a == 4 - InvariantResult [Line: 13]: Loop Invariant [2020-10-20 00:43:41,885 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 00:43:41,885 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 00:43:41,886 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-20 00:43:41,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 00:43:41,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:43:41,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 00:43:41,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 00:43:41,887 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 00:43:41,887 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-20 00:43:41,888 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-20 00:43:41,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 00:43:41,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:43:41,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-20 00:43:41,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((\result == 1 && !(a == #memory_$Pointer$[p1][p1])) && !(a == p1)) && unknown-#memory_int-unknown[#memory_$Pointer$[p1][p1]][#memory_$Pointer$[p1][p1]] == 0) && a == 4 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 15 SDslu, 12 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 38 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 816 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...