./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/rule60_list2.i --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/rule60_list2.i -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 0073e0993c519a9f7d71ed446f057acc936565a4 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:43:29,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:43:29,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:43:29,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:43:29,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:43:29,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:43:29,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:43:29,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:43:29,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:43:29,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:43:29,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:43:29,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:43:29,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:43:29,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:43:29,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:43:29,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:43:29,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:43:29,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:43:29,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:43:29,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:43:29,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:43:29,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:43:29,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:43:29,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:43:29,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:43:29,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:43:29,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:43:29,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:43:29,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:43:29,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:43:29,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:43:29,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:43:29,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:43:29,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:43:29,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:43:29,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:43:29,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:43:29,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:43:29,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:43:29,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:43:29,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:43:29,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:43:29,820 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:43:29,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:43:29,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:43:29,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:43:29,824 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:43:29,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:43:29,825 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:43:29,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:43:29,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:43:29,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:43:29,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:43:29,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:43:29,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:43:29,828 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:43:29,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:43:29,828 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:43:29,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:43:29,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:43:29,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:43:29,829 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:43:29,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:43:29,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:43:29,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:43:29,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:43:29,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:43:29,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:43:29,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:43:29,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:43:29,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:43:29,832 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 -> 0073e0993c519a9f7d71ed446f057acc936565a4 [2020-10-20 00:43:30,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:43:30,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:43:30,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:43:30,141 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:43:30,142 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:43:30,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/rule60_list2.i [2020-10-20 00:43:30,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49b9ffb8c/46a3668174e546a39f22f2fd62a1cfe2/FLAG98c142c0e [2020-10-20 00:43:30,758 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:43:30,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/rule60_list2.i [2020-10-20 00:43:30,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49b9ffb8c/46a3668174e546a39f22f2fd62a1cfe2/FLAG98c142c0e [2020-10-20 00:43:31,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49b9ffb8c/46a3668174e546a39f22f2fd62a1cfe2 [2020-10-20 00:43:31,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:43:31,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:43:31,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:43:31,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:43:31,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:43:31,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:43:31" (1/1) ... [2020-10-20 00:43:31,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c96c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31, skipping insertion in model container [2020-10-20 00:43:31,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:43:31" (1/1) ... [2020-10-20 00:43:31,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:43:31,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:43:31,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:43:31,637 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:43:31,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:43:31,806 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:43:31,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31 WrapperNode [2020-10-20 00:43:31,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:43:31,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:43:31,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:43:31,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:43:31,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31" (1/1) ... [2020-10-20 00:43:31,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31" (1/1) ... [2020-10-20 00:43:31,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:43:31,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:43:31,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:43:31,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:43:31,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31" (1/1) ... [2020-10-20 00:43:31,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31" (1/1) ... [2020-10-20 00:43:31,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31" (1/1) ... [2020-10-20 00:43:31,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31" (1/1) ... [2020-10-20 00:43:31,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31" (1/1) ... [2020-10-20 00:43:31,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31" (1/1) ... [2020-10-20 00:43:31,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31" (1/1) ... [2020-10-20 00:43:31,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:43:31,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:43:31,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:43:31,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:43:31,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31" (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 00:43:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:43:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 00:43:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:43:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:43:31,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:43:32,507 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:43:32,509 INFO L298 CfgBuilder]: Removed 40 assume(true) statements. [2020-10-20 00:43:32,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:32 BoogieIcfgContainer [2020-10-20 00:43:32,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:43:32,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:43:32,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:43:32,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:43:32,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:43:31" (1/3) ... [2020-10-20 00:43:32,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2c67c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:43:32, skipping insertion in model container [2020-10-20 00:43:32,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:31" (2/3) ... [2020-10-20 00:43:32,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2c67c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:43:32, skipping insertion in model container [2020-10-20 00:43:32,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:32" (3/3) ... [2020-10-20 00:43:32,524 INFO L111 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-10-20 00:43:32,536 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:43:32,543 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-20 00:43:32,558 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-20 00:43:32,591 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:43:32,592 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:43:32,594 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:43:32,594 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:43:32,595 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:43:32,595 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:43:32,595 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:43:32,595 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:43:32,612 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-20 00:43:32,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:43:32,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:32,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:43:32,620 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:32,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:32,625 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-10-20 00:43:32,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:32,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658521958] [2020-10-20 00:43:32,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:32,822 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 00:43:32,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658521958] [2020-10-20 00:43:32,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:32,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 00:43:32,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183273750] [2020-10-20 00:43:32,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 00:43:32,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:32,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 00:43:32,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 00:43:32,845 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 3 states. [2020-10-20 00:43:32,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:32,884 INFO L93 Difference]: Finished difference Result 78 states and 99 transitions. [2020-10-20 00:43:32,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 00:43:32,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-20 00:43:32,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:32,898 INFO L225 Difference]: With dead ends: 78 [2020-10-20 00:43:32,899 INFO L226 Difference]: Without dead ends: 30 [2020-10-20 00:43:32,903 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 00:43:32,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-20 00:43:32,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-20 00:43:32,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 00:43:32,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-10-20 00:43:32,942 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 4 [2020-10-20 00:43:32,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:32,943 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-10-20 00:43:32,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 00:43:32,943 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-10-20 00:43:32,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:43:32,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:32,944 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:32,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:43:32,945 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:32,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:32,945 INFO L82 PathProgramCache]: Analyzing trace with hash -19018950, now seen corresponding path program 1 times [2020-10-20 00:43:32,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:32,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250442312] [2020-10-20 00:43:32,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:33,043 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 00:43:33,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250442312] [2020-10-20 00:43:33,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:33,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 00:43:33,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739885583] [2020-10-20 00:43:33,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 00:43:33,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:33,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 00:43:33,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 00:43:33,050 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states. [2020-10-20 00:43:33,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:33,154 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2020-10-20 00:43:33,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:43:33,154 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-20 00:43:33,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:33,155 INFO L225 Difference]: With dead ends: 52 [2020-10-20 00:43:33,156 INFO L226 Difference]: Without dead ends: 32 [2020-10-20 00:43:33,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:43:33,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-20 00:43:33,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-10-20 00:43:33,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 00:43:33,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-10-20 00:43:33,163 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 15 [2020-10-20 00:43:33,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:33,164 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-10-20 00:43:33,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 00:43:33,164 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-10-20 00:43:33,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:43:33,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:33,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:33,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:43:33,166 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:33,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:33,167 INFO L82 PathProgramCache]: Analyzing trace with hash 38239352, now seen corresponding path program 1 times [2020-10-20 00:43:33,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:33,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576329363] [2020-10-20 00:43:33,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:33,266 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 00:43:33,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576329363] [2020-10-20 00:43:33,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:33,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 00:43:33,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575451062] [2020-10-20 00:43:33,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 00:43:33,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:33,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 00:43:33,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 00:43:33,269 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 5 states. [2020-10-20 00:43:33,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:33,332 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2020-10-20 00:43:33,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:43:33,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-20 00:43:33,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:33,334 INFO L225 Difference]: With dead ends: 55 [2020-10-20 00:43:33,335 INFO L226 Difference]: Without dead ends: 30 [2020-10-20 00:43:33,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:43:33,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-20 00:43:33,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-20 00:43:33,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 00:43:33,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-10-20 00:43:33,341 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 15 [2020-10-20 00:43:33,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:33,342 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-10-20 00:43:33,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 00:43:33,342 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-10-20 00:43:33,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:43:33,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:33,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:33,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 00:43:33,344 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:33,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:33,344 INFO L82 PathProgramCache]: Analyzing trace with hash 739303930, now seen corresponding path program 1 times [2020-10-20 00:43:33,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:33,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224941494] [2020-10-20 00:43:33,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:33,497 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 00:43:33,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224941494] [2020-10-20 00:43:33,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:33,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 00:43:33,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876669733] [2020-10-20 00:43:33,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 00:43:33,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:33,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 00:43:33,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-20 00:43:33,500 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 9 states. [2020-10-20 00:43:33,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:33,696 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2020-10-20 00:43:33,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 00:43:33,696 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-20 00:43:33,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:33,697 INFO L225 Difference]: With dead ends: 42 [2020-10-20 00:43:33,697 INFO L226 Difference]: Without dead ends: 34 [2020-10-20 00:43:33,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-20 00:43:33,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-20 00:43:33,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-10-20 00:43:33,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-20 00:43:33,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-10-20 00:43:33,713 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 15 [2020-10-20 00:43:33,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:33,713 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-10-20 00:43:33,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 00:43:33,713 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-10-20 00:43:33,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 00:43:33,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:33,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:33,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 00:43:33,714 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:33,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:33,715 INFO L82 PathProgramCache]: Analyzing trace with hash 293914920, now seen corresponding path program 1 times [2020-10-20 00:43:33,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:33,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50311255] [2020-10-20 00:43:33,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:33,890 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 00:43:33,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50311255] [2020-10-20 00:43:33,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:33,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-20 00:43:33,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118794012] [2020-10-20 00:43:33,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 00:43:33,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:33,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 00:43:33,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-20 00:43:33,893 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 12 states. [2020-10-20 00:43:34,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:34,224 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2020-10-20 00:43:34,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 00:43:34,225 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2020-10-20 00:43:34,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:34,226 INFO L225 Difference]: With dead ends: 38 [2020-10-20 00:43:34,226 INFO L226 Difference]: Without dead ends: 36 [2020-10-20 00:43:34,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2020-10-20 00:43:34,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-20 00:43:34,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2020-10-20 00:43:34,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-20 00:43:34,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2020-10-20 00:43:34,233 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 19 [2020-10-20 00:43:34,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:34,234 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2020-10-20 00:43:34,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 00:43:34,234 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2020-10-20 00:43:34,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 00:43:34,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:34,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:34,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 00:43:34,236 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:34,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:34,237 INFO L82 PathProgramCache]: Analyzing trace with hash 293974502, now seen corresponding path program 1 times [2020-10-20 00:43:34,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:34,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457584779] [2020-10-20 00:43:34,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:34,370 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 00:43:34,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457584779] [2020-10-20 00:43:34,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:34,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 00:43:34,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844509872] [2020-10-20 00:43:34,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:43:34,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:34,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:43:34,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-20 00:43:34,374 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 8 states. [2020-10-20 00:43:34,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:34,539 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-10-20 00:43:34,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 00:43:34,548 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-20 00:43:34,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:34,549 INFO L225 Difference]: With dead ends: 32 [2020-10-20 00:43:34,549 INFO L226 Difference]: Without dead ends: 30 [2020-10-20 00:43:34,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-20 00:43:34,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-20 00:43:34,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-20 00:43:34,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 00:43:34,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-10-20 00:43:34,556 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 19 [2020-10-20 00:43:34,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:34,556 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-10-20 00:43:34,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:43:34,557 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-10-20 00:43:34,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 00:43:34,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:34,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:34,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 00:43:34,559 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:34,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:34,559 INFO L82 PathProgramCache]: Analyzing trace with hash -356272966, now seen corresponding path program 1 times [2020-10-20 00:43:34,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:34,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238681631] [2020-10-20 00:43:34,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:34,660 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 00:43:34,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238681631] [2020-10-20 00:43:34,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:34,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 00:43:34,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345451922] [2020-10-20 00:43:34,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 00:43:34,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:34,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 00:43:34,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 00:43:34,662 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 5 states. [2020-10-20 00:43:34,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:34,732 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2020-10-20 00:43:34,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 00:43:34,733 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-20 00:43:34,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:34,734 INFO L225 Difference]: With dead ends: 37 [2020-10-20 00:43:34,734 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 00:43:34,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:43:34,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 00:43:34,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2020-10-20 00:43:34,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 00:43:34,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-20 00:43:34,739 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 25 [2020-10-20 00:43:34,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:34,739 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-20 00:43:34,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 00:43:34,739 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-20 00:43:34,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 00:43:34,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:34,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:34,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 00:43:34,741 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:34,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:34,741 INFO L82 PathProgramCache]: Analyzing trace with hash -356213384, now seen corresponding path program 1 times [2020-10-20 00:43:34,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:34,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710412298] [2020-10-20 00:43:34,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:34,877 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 00:43:34,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710412298] [2020-10-20 00:43:34,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:34,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-20 00:43:34,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851948768] [2020-10-20 00:43:34,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 00:43:34,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:34,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 00:43:34,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-20 00:43:34,880 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 12 states. [2020-10-20 00:43:35,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:35,136 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2020-10-20 00:43:35,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 00:43:35,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2020-10-20 00:43:35,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:35,140 INFO L225 Difference]: With dead ends: 36 [2020-10-20 00:43:35,140 INFO L226 Difference]: Without dead ends: 26 [2020-10-20 00:43:35,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2020-10-20 00:43:35,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-20 00:43:35,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-20 00:43:35,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 00:43:35,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2020-10-20 00:43:35,144 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 25 [2020-10-20 00:43:35,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:35,145 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2020-10-20 00:43:35,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 00:43:35,145 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-10-20 00:43:35,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 00:43:35,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:35,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:35,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 00:43:35,147 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:35,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:35,147 INFO L82 PathProgramCache]: Analyzing trace with hash -298955082, now seen corresponding path program 1 times [2020-10-20 00:43:35,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:35,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283144187] [2020-10-20 00:43:35,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:35,404 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 00:43:35,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283144187] [2020-10-20 00:43:35,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:35,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-20 00:43:35,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623417746] [2020-10-20 00:43:35,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 00:43:35,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:35,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 00:43:35,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-20 00:43:35,407 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 11 states. [2020-10-20 00:43:35,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:35,682 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-10-20 00:43:35,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 00:43:35,683 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-20 00:43:35,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:35,684 INFO L225 Difference]: With dead ends: 26 [2020-10-20 00:43:35,684 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:43:35,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2020-10-20 00:43:35,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:43:35,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:43:35,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:43:35,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:43:35,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-10-20 00:43:35,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:35,686 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:43:35,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 00:43:35,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:43:35,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:43:35,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 00:43:35,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:43:36,046 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-10-20 00:43:36,049 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:43:36,049 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:43:36,049 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:43:36,049 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 00:43:36,049 INFO L274 CegarLoopResult]: For program point L3-3(line 3) no Hoare annotation was computed. [2020-10-20 00:43:36,049 INFO L274 CegarLoopResult]: For program point L3-4(line 3) no Hoare annotation was computed. [2020-10-20 00:43:36,050 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:43:36,050 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:43:36,050 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:43:36,050 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:43:36,050 INFO L274 CegarLoopResult]: For program point L897(lines 897 900) no Hoare annotation was computed. [2020-10-20 00:43:36,051 INFO L270 CegarLoopResult]: At program point L881(lines 880 882) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start___getMemory_~size 8))) (or (and (= 0 |ULTIMATE.start_my_malloc_#res.offset|) (= |ULTIMATE.start___getMemory_#res.offset| 0) (= |ULTIMATE.start___getMemory_#res.base| 0) (= |ULTIMATE.start_my_malloc_#res.base| 0) .cse0) (and (<= 0 |ULTIMATE.start_my_malloc_#res.base|) (<= 1 |ULTIMATE.start_my_malloc_#res.offset|) (<= 1 |ULTIMATE.start___getMemory_#res.offset|) (<= |ULTIMATE.start_my_malloc_#res.offset| ~guard_malloc_counter~0.offset) (<= ~guard_malloc_counter~0.base 0) (<= |ULTIMATE.start___getMemory_#res.offset| ~guard_malloc_counter~0.offset) (= ~elem~0.offset 0) (<= |ULTIMATE.start_my_malloc_#res.base| 0) (<= |ULTIMATE.start___getMemory_#res.base| 0) (<= 0 ~guard_malloc_counter~0.base) (<= 0 |ULTIMATE.start___getMemory_#res.base|) .cse0))) [2020-10-20 00:43:36,052 INFO L270 CegarLoopResult]: At program point L881-1(lines 880 882) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~dev1~0.offset 0)) (.cse0 (= ULTIMATE.start___getMemory_~size 8))) (or (and (= 0 |ULTIMATE.start_my_malloc_#res.offset|) (= |ULTIMATE.start___getMemory_#res.offset| 0) (= |ULTIMATE.start___getMemory_#res.base| 0) (= |ULTIMATE.start_my_malloc_#res.base| 0) .cse0) (and .cse1 (= ULTIMATE.start_main_~dev1~0.base 0) .cse0) (let ((.cse2 (+ ULTIMATE.start_main_~dev1~0.offset 1))) (and (<= 0 |ULTIMATE.start_my_malloc_#res.base|) (<= ~guard_malloc_counter~0.base 0) (<= |ULTIMATE.start___getMemory_#res.offset| ~guard_malloc_counter~0.offset) (<= |ULTIMATE.start_my_malloc_#res.base| 0) (<= 0 |ULTIMATE.start___getMemory_#res.base|) (<= 2 |ULTIMATE.start_my_malloc_#res.offset|) (<= |ULTIMATE.start_my_malloc_#res.offset| ~guard_malloc_counter~0.offset) (<= .cse2 |ULTIMATE.start___getMemory_#res.offset|) (= ~elem~0.offset 0) (not .cse1) (<= 2 |ULTIMATE.start___getMemory_#res.offset|) (<= |ULTIMATE.start___getMemory_#res.base| 0) (<= 0 ~guard_malloc_counter~0.base) (<= .cse2 |ULTIMATE.start_my_malloc_#res.offset|) .cse0)))) [2020-10-20 00:43:36,052 INFO L274 CegarLoopResult]: For program point L873(line 873) no Hoare annotation was computed. [2020-10-20 00:43:36,052 INFO L274 CegarLoopResult]: For program point L873-2(line 873) no Hoare annotation was computed. [2020-10-20 00:43:36,052 INFO L274 CegarLoopResult]: For program point L6(lines 1 919) no Hoare annotation was computed. [2020-10-20 00:43:36,052 INFO L274 CegarLoopResult]: For program point L6-1(lines 1 919) no Hoare annotation was computed. [2020-10-20 00:43:36,053 INFO L274 CegarLoopResult]: For program point L6-2(lines 1 919) no Hoare annotation was computed. [2020-10-20 00:43:36,053 INFO L274 CegarLoopResult]: For program point L6-3(lines 1 919) no Hoare annotation was computed. [2020-10-20 00:43:36,053 INFO L274 CegarLoopResult]: For program point L898(lines 898 899) no Hoare annotation was computed. [2020-10-20 00:43:36,053 INFO L274 CegarLoopResult]: For program point L6-4(lines 1 919) no Hoare annotation was computed. [2020-10-20 00:43:36,053 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:43:36,054 INFO L274 CegarLoopResult]: For program point L891(lines 891 895) no Hoare annotation was computed. [2020-10-20 00:43:36,054 INFO L274 CegarLoopResult]: For program point L891-1(lines 891 895) no Hoare annotation was computed. [2020-10-20 00:43:36,054 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:43:36,054 INFO L274 CegarLoopResult]: For program point L908(lines 908 917) no Hoare annotation was computed. [2020-10-20 00:43:36,054 INFO L274 CegarLoopResult]: For program point L875(lines 875 876) no Hoare annotation was computed. [2020-10-20 00:43:36,055 INFO L274 CegarLoopResult]: For program point L908-1(lines 908 917) no Hoare annotation was computed. [2020-10-20 00:43:36,055 INFO L274 CegarLoopResult]: For program point L875-1(lines 875 876) no Hoare annotation was computed. [2020-10-20 00:43:36,055 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-20 00:43:36,055 INFO L274 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-10-20 00:43:36,055 INFO L274 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-10-20 00:43:36,056 INFO L274 CegarLoopResult]: For program point L8-3(line 8) no Hoare annotation was computed. [2020-10-20 00:43:36,056 INFO L274 CegarLoopResult]: For program point L8-4(line 8) no Hoare annotation was computed. [2020-10-20 00:43:36,056 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:43:36,056 INFO L274 CegarLoopResult]: For program point L892(line 892) no Hoare annotation was computed. [2020-10-20 00:43:36,056 INFO L274 CegarLoopResult]: For program point L892-2(line 892) no Hoare annotation was computed. [2020-10-20 00:43:36,057 INFO L274 CegarLoopResult]: For program point L892-4(line 892) no Hoare annotation was computed. [2020-10-20 00:43:36,057 INFO L274 CegarLoopResult]: For program point L893(lines 893 894) no Hoare annotation was computed. [2020-10-20 00:43:36,057 INFO L274 CegarLoopResult]: For program point L893-2(lines 893 894) no Hoare annotation was computed. [2020-10-20 00:43:36,057 INFO L274 CegarLoopResult]: For program point L893-4(lines 893 894) no Hoare annotation was computed. [2020-10-20 00:43:36,057 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:43:36,058 INFO L270 CegarLoopResult]: At program point L918(lines 904 919) the Hoare annotation is: (= ULTIMATE.start___getMemory_~size 8) [2020-10-20 00:43:36,058 INFO L270 CegarLoopResult]: At program point L877(lines 871 878) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start___getMemory_~size 8))) (or (and (<= 1 |ULTIMATE.start___getMemory_#res.offset|) (<= ~guard_malloc_counter~0.base 0) (<= |ULTIMATE.start___getMemory_#res.offset| ~guard_malloc_counter~0.offset) (= ~elem~0.offset 0) (<= |ULTIMATE.start___getMemory_#res.base| 0) (<= 0 ~guard_malloc_counter~0.base) (<= 0 |ULTIMATE.start___getMemory_#res.base|) .cse0) (and (= |ULTIMATE.start___getMemory_#res.offset| 0) (= |ULTIMATE.start___getMemory_#res.base| 0) .cse0))) [2020-10-20 00:43:36,058 INFO L270 CegarLoopResult]: At program point L877-1(lines 871 878) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~dev1~0.offset 0)) (.cse1 (= ULTIMATE.start___getMemory_~size 8))) (or (and .cse0 (= ULTIMATE.start_main_~dev1~0.base 0) .cse1) (and (= |ULTIMATE.start___getMemory_#res.offset| 0) (= |ULTIMATE.start___getMemory_#res.base| 0) .cse1) (and (<= ~guard_malloc_counter~0.base 0) (<= (+ ULTIMATE.start_main_~dev1~0.offset 1) |ULTIMATE.start___getMemory_#res.offset|) (<= |ULTIMATE.start___getMemory_#res.offset| ~guard_malloc_counter~0.offset) (= ~elem~0.offset 0) (not .cse0) (<= 2 |ULTIMATE.start___getMemory_#res.offset|) (<= |ULTIMATE.start___getMemory_#res.base| 0) (<= 0 ~guard_malloc_counter~0.base) (<= 0 |ULTIMATE.start___getMemory_#res.base|) .cse1))) [2020-10-20 00:43:36,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:43:36 BoogieIcfgContainer [2020-10-20 00:43:36,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:43:36,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:43:36,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:43:36,088 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:43:36,089 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:32" (3/4) ... [2020-10-20 00:43:36,093 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:43:36,106 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-20 00:43:36,107 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-20 00:43:36,108 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:43:36,108 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:43:36,139 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 <= \result && guard_malloc_counter <= 0) && \result <= guard_malloc_counter) && elem == 0) && \result <= 0) && 0 <= guard_malloc_counter) && 0 <= \result) && size == 8) || ((\result == 0 && \result == 0) && size == 8) [2020-10-20 00:43:36,139 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0 == \result && \result == 0) && \result == 0) && \result == 0) && size == 8) || (((((((((((0 <= \result && 1 <= \result) && 1 <= \result) && \result <= guard_malloc_counter) && guard_malloc_counter <= 0) && \result <= guard_malloc_counter) && elem == 0) && \result <= 0) && \result <= 0) && 0 <= guard_malloc_counter) && 0 <= \result) && size == 8) [2020-10-20 00:43:36,140 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((dev1 == 0 && dev1 == 0) && size == 8) || ((\result == 0 && \result == 0) && size == 8)) || (((((((((guard_malloc_counter <= 0 && dev1 + 1 <= \result) && \result <= guard_malloc_counter) && elem == 0) && !(dev1 == 0)) && 2 <= \result) && \result <= 0) && 0 <= guard_malloc_counter) && 0 <= \result) && size == 8) [2020-10-20 00:43:36,140 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0 == \result && \result == 0) && \result == 0) && \result == 0) && size == 8) || ((dev1 == 0 && dev1 == 0) && size == 8)) || ((((((((((((((0 <= \result && guard_malloc_counter <= 0) && \result <= guard_malloc_counter) && \result <= 0) && 0 <= \result) && 2 <= \result) && \result <= guard_malloc_counter) && dev1 + 1 <= \result) && elem == 0) && !(dev1 == 0)) && 2 <= \result) && \result <= 0) && 0 <= guard_malloc_counter) && dev1 + 1 <= \result) && size == 8) [2020-10-20 00:43:36,171 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:43:36,172 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:43:36,174 INFO L168 Benchmark]: Toolchain (without parser) took 5114.08 ms. Allocated memory was 35.1 MB in the beginning and 71.3 MB in the end (delta: 36.2 MB). Free memory was 11.8 MB in the beginning and 33.6 MB in the end (delta: -21.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:36,174 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 33.6 MB. Free memory was 19.0 MB in the beginning and 19.0 MB in the end (delta: 30.8 kB). Peak memory consumption was 30.8 kB. Max. memory is 14.3 GB. [2020-10-20 00:43:36,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.41 ms. Allocated memory was 35.1 MB in the beginning and 45.1 MB in the end (delta: 10.0 MB). Free memory was 11.0 MB in the beginning and 20.8 MB in the end (delta: -9.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:36,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.56 ms. Allocated memory is still 45.1 MB. Free memory was 20.8 MB in the beginning and 18.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:36,176 INFO L168 Benchmark]: Boogie Preprocessor took 30.54 ms. Allocated memory is still 45.1 MB. Free memory was 18.4 MB in the beginning and 16.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:36,176 INFO L168 Benchmark]: RCFGBuilder took 610.32 ms. Allocated memory was 45.1 MB in the beginning and 47.7 MB in the end (delta: 2.6 MB). Free memory was 16.8 MB in the beginning and 24.6 MB in the end (delta: -7.8 MB). Peak memory consumption was 6.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:36,177 INFO L168 Benchmark]: TraceAbstraction took 3573.66 ms. Allocated memory was 47.7 MB in the beginning and 71.3 MB in the end (delta: 23.6 MB). Free memory was 24.0 MB in the beginning and 38.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 39.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:36,177 INFO L168 Benchmark]: Witness Printer took 84.09 ms. Allocated memory is still 71.3 MB. Free memory was 38.6 MB in the beginning and 33.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:36,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 33.6 MB. Free memory was 19.0 MB in the beginning and 19.0 MB in the end (delta: 30.8 kB). Peak memory consumption was 30.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 743.41 ms. Allocated memory was 35.1 MB in the beginning and 45.1 MB in the end (delta: 10.0 MB). Free memory was 11.0 MB in the beginning and 20.8 MB in the end (delta: -9.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 50.56 ms. Allocated memory is still 45.1 MB. Free memory was 20.8 MB in the beginning and 18.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 30.54 ms. Allocated memory is still 45.1 MB. Free memory was 18.4 MB in the beginning and 16.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 610.32 ms. Allocated memory was 45.1 MB in the beginning and 47.7 MB in the end (delta: 2.6 MB). Free memory was 16.8 MB in the beginning and 24.6 MB in the end (delta: -7.8 MB). Peak memory consumption was 6.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3573.66 ms. Allocated memory was 47.7 MB in the beginning and 71.3 MB in the end (delta: 23.6 MB). Free memory was 24.0 MB in the beginning and 38.6 MB in the end (delta: -14.6 MB). Peak memory consumption was 39.1 MB. Max. memory is 14.3 GB. * Witness Printer took 84.09 ms. Allocated memory is still 71.3 MB. Free memory was 38.6 MB in the beginning and 33.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.3 GB. * 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 - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - 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 5 specifications checked. All of them hold - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: (((((((1 <= \result && guard_malloc_counter <= 0) && \result <= guard_malloc_counter) && elem == 0) && \result <= 0) && 0 <= guard_malloc_counter) && 0 <= \result) && size == 8) || ((\result == 0 && \result == 0) && size == 8) - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: (((dev1 == 0 && dev1 == 0) && size == 8) || ((\result == 0 && \result == 0) && size == 8)) || (((((((((guard_malloc_counter <= 0 && dev1 + 1 <= \result) && \result <= guard_malloc_counter) && elem == 0) && !(dev1 == 0)) && 2 <= \result) && \result <= 0) && 0 <= guard_malloc_counter) && 0 <= \result) && size == 8) - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((0 == \result && \result == 0) && \result == 0) && \result == 0) && size == 8) || (((((((((((0 <= \result && 1 <= \result) && 1 <= \result) && \result <= guard_malloc_counter) && guard_malloc_counter <= 0) && \result <= guard_malloc_counter) && elem == 0) && \result <= 0) && \result <= 0) && 0 <= guard_malloc_counter) && 0 <= \result) && size == 8) - InvariantResult [Line: 904]: Loop Invariant Derived loop invariant: size == 8 - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((((0 == \result && \result == 0) && \result == 0) && \result == 0) && size == 8) || ((dev1 == 0 && dev1 == 0) && size == 8)) || ((((((((((((((0 <= \result && guard_malloc_counter <= 0) && \result <= guard_malloc_counter) && \result <= 0) && 0 <= \result) && 2 <= \result) && \result <= guard_malloc_counter) && dev1 + 1 <= \result) && elem == 0) && !(dev1 == 0)) && 2 <= \result) && \result <= 0) && 0 <= guard_malloc_counter) && dev1 + 1 <= \result) && size == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 208 SDtfs, 518 SDslu, 431 SDs, 0 SdLazy, 567 SolverSat, 67 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 9 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 16 NumberOfFragments, 226 HoareAnnotationTreeSize, 5 FomulaSimplifications, 56 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 14573 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...