./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test22-1.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/test22-1.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 a3b319f31812cf6dfaa3cae4a89a0875c72839a3 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:43:51,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:43:51,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:43:51,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:43:51,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:43:51,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:43:51,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:43:51,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:43:51,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:43:51,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:43:51,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:43:51,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:43:51,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:43:51,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:43:51,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:43:51,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:43:51,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:43:51,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:43:51,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:43:51,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:43:51,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:43:51,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:43:51,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:43:51,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:43:51,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:43:51,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:43:51,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:43:51,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:43:51,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:43:51,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:43:51,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:43:51,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:43:51,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:43:51,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:43:51,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:43:51,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:43:51,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:43:51,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:43:51,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:43:51,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:43:51,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:43:51,673 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:43:51,713 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:43:51,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:43:51,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:43:51,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:43:51,715 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:43:51,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:43:51,716 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:43:51,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:43:51,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:43:51,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:43:51,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:43:51,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:43:51,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:43:51,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:43:51,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:43:51,718 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:43:51,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:43:51,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:43:51,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:43:51,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:43:51,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:43:51,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:43:51,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:43:51,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:43:51,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:43:51,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:43:51,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:43:51,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:43:51,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:43:51,720 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 -> a3b319f31812cf6dfaa3cae4a89a0875c72839a3 [2020-10-20 00:43:51,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:43:51,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:43:51,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:43:51,959 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:43:51,960 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:43:51,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test22-1.c [2020-10-20 00:43:52,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac426817/90aee30d11bd4edcb0068ee591408605/FLAG723e0b96c [2020-10-20 00:43:52,474 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:43:52,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test22-1.c [2020-10-20 00:43:52,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac426817/90aee30d11bd4edcb0068ee591408605/FLAG723e0b96c [2020-10-20 00:43:52,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac426817/90aee30d11bd4edcb0068ee591408605 [2020-10-20 00:43:52,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:43:52,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:43:52,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:43:52,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:43:52,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:43:52,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:43:52" (1/1) ... [2020-10-20 00:43:52,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395170c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:52, skipping insertion in model container [2020-10-20 00:43:52,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:43:52" (1/1) ... [2020-10-20 00:43:52,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:43:52,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:43:53,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:43:53,176 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:43:53,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:43:53,216 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:43:53,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:53 WrapperNode [2020-10-20 00:43:53,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:43:53,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:43:53,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:43:53,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:43:53,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:53" (1/1) ... [2020-10-20 00:43:53,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:53" (1/1) ... [2020-10-20 00:43:53,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:43:53,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:43:53,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:43:53,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:43:53,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:53" (1/1) ... [2020-10-20 00:43:53,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:53" (1/1) ... [2020-10-20 00:43:53,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:53" (1/1) ... [2020-10-20 00:43:53,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:53" (1/1) ... [2020-10-20 00:43:53,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:53" (1/1) ... [2020-10-20 00:43:53,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:53" (1/1) ... [2020-10-20 00:43:53,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:53" (1/1) ... [2020-10-20 00:43:53,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:43:53,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:43:53,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:43:53,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:43:53,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:53" (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 00:43:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:43:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:43:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:43:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:43:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:43:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:43:53,734 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:43:53,735 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-10-20 00:43:53,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:53 BoogieIcfgContainer [2020-10-20 00:43:53,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:43:53,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:43:53,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:43:53,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:43:53,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:43:52" (1/3) ... [2020-10-20 00:43:53,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397f01a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:43:53, skipping insertion in model container [2020-10-20 00:43:53,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:53" (2/3) ... [2020-10-20 00:43:53,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397f01a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:43:53, skipping insertion in model container [2020-10-20 00:43:53,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:53" (3/3) ... [2020-10-20 00:43:53,749 INFO L111 eAbstractionObserver]: Analyzing ICFG test22-1.c [2020-10-20 00:43:53,763 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:43:53,773 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:43:53,792 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:43:53,821 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:43:53,821 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:43:53,822 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:43:53,822 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:43:53,822 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:43:53,822 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:43:53,823 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:43:53,823 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:43:53,839 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-20 00:43:53,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 00:43:53,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:53,849 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 00:43:53,850 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:53,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:53,857 INFO L82 PathProgramCache]: Analyzing trace with hash 164664103, now seen corresponding path program 1 times [2020-10-20 00:43:53,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:53,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546637142] [2020-10-20 00:43:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:54,078 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 00:43:54,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546637142] [2020-10-20 00:43:54,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:54,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:43:54,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132518103] [2020-10-20 00:43:54,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:43:54,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:54,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:43:54,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:43:54,117 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-20 00:43:54,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:54,144 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2020-10-20 00:43:54,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:43:54,147 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2020-10-20 00:43:54,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:54,173 INFO L225 Difference]: With dead ends: 35 [2020-10-20 00:43:54,173 INFO L226 Difference]: Without dead ends: 21 [2020-10-20 00:43:54,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:43:54,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-20 00:43:54,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-20 00:43:54,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-20 00:43:54,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-10-20 00:43:54,234 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 19 [2020-10-20 00:43:54,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:54,236 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-10-20 00:43:54,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:43:54,237 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-10-20 00:43:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 00:43:54,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:54,239 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] [2020-10-20 00:43:54,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:43:54,239 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:54,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:54,241 INFO L82 PathProgramCache]: Analyzing trace with hash 603612068, now seen corresponding path program 1 times [2020-10-20 00:43:54,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:54,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829257703] [2020-10-20 00:43:54,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:54,552 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 00:43:54,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829257703] [2020-10-20 00:43:54,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:54,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-20 00:43:54,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474425547] [2020-10-20 00:43:54,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 00:43:54,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:54,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 00:43:54,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:43:54,558 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 10 states. [2020-10-20 00:43:55,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:55,088 INFO L93 Difference]: Finished difference Result 96 states and 109 transitions. [2020-10-20 00:43:55,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-20 00:43:55,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-20 00:43:55,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:55,091 INFO L225 Difference]: With dead ends: 96 [2020-10-20 00:43:55,091 INFO L226 Difference]: Without dead ends: 91 [2020-10-20 00:43:55,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2020-10-20 00:43:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-20 00:43:55,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 33. [2020-10-20 00:43:55,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 00:43:55,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2020-10-20 00:43:55,105 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 20 [2020-10-20 00:43:55,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:55,105 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-10-20 00:43:55,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 00:43:55,106 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2020-10-20 00:43:55,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 00:43:55,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:55,107 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] [2020-10-20 00:43:55,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:43:55,108 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:55,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:55,108 INFO L82 PathProgramCache]: Analyzing trace with hash -407505182, now seen corresponding path program 1 times [2020-10-20 00:43:55,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:55,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807257382] [2020-10-20 00:43:55,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:55,210 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 00:43:55,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807257382] [2020-10-20 00:43:55,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:55,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-20 00:43:55,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006955253] [2020-10-20 00:43:55,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 00:43:55,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:55,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 00:43:55,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:43:55,213 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 10 states. [2020-10-20 00:43:55,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:55,679 INFO L93 Difference]: Finished difference Result 91 states and 103 transitions. [2020-10-20 00:43:55,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-20 00:43:55,680 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-20 00:43:55,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:55,681 INFO L225 Difference]: With dead ends: 91 [2020-10-20 00:43:55,681 INFO L226 Difference]: Without dead ends: 66 [2020-10-20 00:43:55,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2020-10-20 00:43:55,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-20 00:43:55,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 33. [2020-10-20 00:43:55,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 00:43:55,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-20 00:43:55,690 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 20 [2020-10-20 00:43:55,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:55,691 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-20 00:43:55,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 00:43:55,691 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-20 00:43:55,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 00:43:55,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:55,692 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] [2020-10-20 00:43:55,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 00:43:55,693 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:55,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:55,694 INFO L82 PathProgramCache]: Analyzing trace with hash -984735834, now seen corresponding path program 1 times [2020-10-20 00:43:55,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:55,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619468538] [2020-10-20 00:43:55,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:55,791 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 00:43:55,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619468538] [2020-10-20 00:43:55,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:55,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-20 00:43:55,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864959450] [2020-10-20 00:43:55,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 00:43:55,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:55,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 00:43:55,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:43:55,793 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 10 states. [2020-10-20 00:43:56,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:56,139 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2020-10-20 00:43:56,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-20 00:43:56,140 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-20 00:43:56,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:56,141 INFO L225 Difference]: With dead ends: 81 [2020-10-20 00:43:56,141 INFO L226 Difference]: Without dead ends: 64 [2020-10-20 00:43:56,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2020-10-20 00:43:56,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-20 00:43:56,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 33. [2020-10-20 00:43:56,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 00:43:56,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2020-10-20 00:43:56,149 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 20 [2020-10-20 00:43:56,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:56,149 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2020-10-20 00:43:56,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 00:43:56,149 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2020-10-20 00:43:56,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 00:43:56,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:56,150 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] [2020-10-20 00:43:56,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 00:43:56,151 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:56,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:56,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1995853084, now seen corresponding path program 1 times [2020-10-20 00:43:56,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:56,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257882701] [2020-10-20 00:43:56,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:56,282 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 00:43:56,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257882701] [2020-10-20 00:43:56,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:56,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-20 00:43:56,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674348467] [2020-10-20 00:43:56,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 00:43:56,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:56,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 00:43:56,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:43:56,285 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 10 states. [2020-10-20 00:43:56,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:56,667 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2020-10-20 00:43:56,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-20 00:43:56,667 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-20 00:43:56,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:56,668 INFO L225 Difference]: With dead ends: 73 [2020-10-20 00:43:56,668 INFO L226 Difference]: Without dead ends: 68 [2020-10-20 00:43:56,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2020-10-20 00:43:56,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-20 00:43:56,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 26. [2020-10-20 00:43:56,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 00:43:56,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-10-20 00:43:56,675 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 20 [2020-10-20 00:43:56,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:56,675 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-10-20 00:43:56,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 00:43:56,676 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-10-20 00:43:56,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 00:43:56,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:56,677 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:56,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 00:43:56,677 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:56,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:56,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1760411593, now seen corresponding path program 1 times [2020-10-20 00:43:56,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:56,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419379169] [2020-10-20 00:43:56,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:43:56,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419379169] [2020-10-20 00:43:56,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792977150] [2020-10-20 00:43:56,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:43:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:56,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 36 conjunts are in the unsatisfiable core [2020-10-20 00:43:56,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:43:57,298 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-10-20 00:43:57,300 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 00:43:57,308 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:43:57,308 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 00:43:57,308 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:10 [2020-10-20 00:43:57,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:43:57,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 00:43:57,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 23 [2020-10-20 00:43:57,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647831612] [2020-10-20 00:43:57,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-20 00:43:57,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:57,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-20 00:43:57,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2020-10-20 00:43:57,354 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 23 states. [2020-10-20 00:43:58,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:58,609 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2020-10-20 00:43:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-20 00:43:58,610 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 22 [2020-10-20 00:43:58,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:58,611 INFO L225 Difference]: With dead ends: 77 [2020-10-20 00:43:58,612 INFO L226 Difference]: Without dead ends: 72 [2020-10-20 00:43:58,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=354, Invalid=1452, Unknown=0, NotChecked=0, Total=1806 [2020-10-20 00:43:58,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-20 00:43:58,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 35. [2020-10-20 00:43:58,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-20 00:43:58,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-10-20 00:43:58,620 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 22 [2020-10-20 00:43:58,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:58,620 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-10-20 00:43:58,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-20 00:43:58,621 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-10-20 00:43:58,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 00:43:58,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:58,621 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:58,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-20 00:43:58,836 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:58,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:58,837 INFO L82 PathProgramCache]: Analyzing trace with hash -949600503, now seen corresponding path program 1 times [2020-10-20 00:43:58,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:58,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963789800] [2020-10-20 00:43:58,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:43:58,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963789800] [2020-10-20 00:43:58,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590763387] [2020-10-20 00:43:58,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:43:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:59,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 32 conjunts are in the unsatisfiable core [2020-10-20 00:43:59,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:43:59,412 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-10-20 00:43:59,414 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 00:43:59,424 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:43:59,426 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 00:43:59,427 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:5 [2020-10-20 00:43:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:43:59,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 00:43:59,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2020-10-20 00:43:59,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138179927] [2020-10-20 00:43:59,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-20 00:43:59,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:59,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-20 00:43:59,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2020-10-20 00:43:59,437 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 22 states. [2020-10-20 00:44:00,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:44:00,738 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2020-10-20 00:44:00,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-20 00:44:00,740 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 22 [2020-10-20 00:44:00,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:44:00,741 INFO L225 Difference]: With dead ends: 81 [2020-10-20 00:44:00,741 INFO L226 Difference]: Without dead ends: 76 [2020-10-20 00:44:00,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=347, Invalid=1375, Unknown=0, NotChecked=0, Total=1722 [2020-10-20 00:44:00,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-20 00:44:00,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 28. [2020-10-20 00:44:00,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-20 00:44:00,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-10-20 00:44:00,749 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 22 [2020-10-20 00:44:00,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:44:00,749 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-10-20 00:44:00,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-20 00:44:00,749 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-10-20 00:44:00,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 00:44:00,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:44:00,750 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:44:00,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:44:00,958 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:44:00,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:44:00,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1048225454, now seen corresponding path program 2 times [2020-10-20 00:44:00,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:44:00,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652086545] [2020-10-20 00:44:00,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:44:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:44:01,079 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:44:01,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652086545] [2020-10-20 00:44:01,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183011862] [2020-10-20 00:44:01,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:44:01,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 00:44:01,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 00:44:01,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 35 conjunts are in the unsatisfiable core [2020-10-20 00:44:01,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:44:01,387 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-10-20 00:44:01,388 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 00:44:01,389 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:44:01,390 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 00:44:01,390 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:5 [2020-10-20 00:44:01,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:44:01,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 00:44:01,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2020-10-20 00:44:01,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070405524] [2020-10-20 00:44:01,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-20 00:44:01,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:44:01,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-20 00:44:01,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2020-10-20 00:44:01,399 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 22 states. [2020-10-20 00:44:02,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:44:02,291 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2020-10-20 00:44:02,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-20 00:44:02,291 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 24 [2020-10-20 00:44:02,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:44:02,292 INFO L225 Difference]: With dead ends: 85 [2020-10-20 00:44:02,292 INFO L226 Difference]: Without dead ends: 80 [2020-10-20 00:44:02,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=341, Invalid=1141, Unknown=0, NotChecked=0, Total=1482 [2020-10-20 00:44:02,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-20 00:44:02,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 37. [2020-10-20 00:44:02,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 00:44:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-10-20 00:44:02,301 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 24 [2020-10-20 00:44:02,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:44:02,302 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-10-20 00:44:02,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-20 00:44:02,302 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-10-20 00:44:02,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 00:44:02,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:44:02,303 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:44:02,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:44:02,519 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:44:02,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:44:02,520 INFO L82 PathProgramCache]: Analyzing trace with hash -523217426, now seen corresponding path program 2 times [2020-10-20 00:44:02,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:44:02,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969908504] [2020-10-20 00:44:02,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:44:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:44:02,671 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:44:02,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969908504] [2020-10-20 00:44:02,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008143320] [2020-10-20 00:44:02,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:44:02,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 00:44:02,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 00:44:02,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 35 conjunts are in the unsatisfiable core [2020-10-20 00:44:02,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:44:02,982 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-10-20 00:44:02,983 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 00:44:02,985 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:44:02,985 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 00:44:02,985 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:5 [2020-10-20 00:44:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:44:02,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 00:44:02,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2020-10-20 00:44:02,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189792712] [2020-10-20 00:44:02,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-20 00:44:02,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:44:02,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-20 00:44:02,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2020-10-20 00:44:02,996 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 22 states. [2020-10-20 00:44:04,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:44:04,077 INFO L93 Difference]: Finished difference Result 89 states and 93 transitions. [2020-10-20 00:44:04,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-20 00:44:04,078 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 24 [2020-10-20 00:44:04,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:44:04,079 INFO L225 Difference]: With dead ends: 89 [2020-10-20 00:44:04,079 INFO L226 Difference]: Without dead ends: 84 [2020-10-20 00:44:04,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=341, Invalid=1141, Unknown=0, NotChecked=0, Total=1482 [2020-10-20 00:44:04,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-20 00:44:04,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 30. [2020-10-20 00:44:04,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 00:44:04,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-10-20 00:44:04,087 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 24 [2020-10-20 00:44:04,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:44:04,087 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-10-20 00:44:04,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-20 00:44:04,088 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-10-20 00:44:04,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 00:44:04,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:44:04,093 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:44:04,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:44:04,308 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:44:04,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:44:04,308 INFO L82 PathProgramCache]: Analyzing trace with hash -462854061, now seen corresponding path program 3 times [2020-10-20 00:44:04,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:44:04,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058057086] [2020-10-20 00:44:04,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:44:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:44:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:44:04,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058057086] [2020-10-20 00:44:04,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811571757] [2020-10-20 00:44:04,450 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:44:04,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-20 00:44:04,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 00:44:04,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 50 conjunts are in the unsatisfiable core [2020-10-20 00:44:04,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:44:04,845 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:44:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-20 00:44:04,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 00:44:04,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 27 [2020-10-20 00:44:04,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706198610] [2020-10-20 00:44:04,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-20 00:44:04,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:44:04,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-20 00:44:04,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2020-10-20 00:44:04,922 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 27 states. [2020-10-20 00:44:07,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:44:07,117 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2020-10-20 00:44:07,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-20 00:44:07,118 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 26 [2020-10-20 00:44:07,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:44:07,119 INFO L225 Difference]: With dead ends: 89 [2020-10-20 00:44:07,119 INFO L226 Difference]: Without dead ends: 44 [2020-10-20 00:44:07,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=673, Invalid=2633, Unknown=0, NotChecked=0, Total=3306 [2020-10-20 00:44:07,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-20 00:44:07,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 27. [2020-10-20 00:44:07,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 00:44:07,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-20 00:44:07,127 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 26 [2020-10-20 00:44:07,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:44:07,128 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-20 00:44:07,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-20 00:44:07,128 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-20 00:44:07,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 00:44:07,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:44:07,129 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:44:07,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-20 00:44:07,340 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:44:07,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:44:07,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1209026451, now seen corresponding path program 3 times [2020-10-20 00:44:07,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:44:07,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786837699] [2020-10-20 00:44:07,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:44:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:44:07,512 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:44:07,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786837699] [2020-10-20 00:44:07,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338213669] [2020-10-20 00:44:07,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:44:07,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-20 00:44:07,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 00:44:07,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 50 conjunts are in the unsatisfiable core [2020-10-20 00:44:07,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:44:07,878 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:44:07,939 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-20 00:44:07,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 00:44:07,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 27 [2020-10-20 00:44:07,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080678661] [2020-10-20 00:44:07,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-20 00:44:07,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:44:07,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-20 00:44:07,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2020-10-20 00:44:07,941 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 27 states. [2020-10-20 00:44:10,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:44:10,023 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-10-20 00:44:10,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-20 00:44:10,023 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 26 [2020-10-20 00:44:10,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:44:10,024 INFO L225 Difference]: With dead ends: 49 [2020-10-20 00:44:10,024 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:44:10,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=673, Invalid=2633, Unknown=0, NotChecked=0, Total=3306 [2020-10-20 00:44:10,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:44:10,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:44:10,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:44:10,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:44:10,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-10-20 00:44:10,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:44:10,027 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:44:10,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-20 00:44:10,027 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:44:10,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:44:10,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:44:10,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:44:10,976 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 165 [2020-10-20 00:44:11,179 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2020-10-20 00:44:12,332 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 164 DAG size of output: 33 [2020-10-20 00:44:12,536 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2020-10-20 00:44:12,783 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 37 [2020-10-20 00:44:13,135 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 29 [2020-10-20 00:44:13,139 INFO L270 CegarLoopResult]: At program point L44(lines 33 52) the Hoare annotation is: false [2020-10-20 00:44:13,139 INFO L274 CegarLoopResult]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2020-10-20 00:44:13,139 INFO L270 CegarLoopResult]: At program point L40-3(lines 40 42) the Hoare annotation is: (let ((.cse0 (= |~#d2~0.offset| 0)) (.cse1 (not (= |~#d1~0.base| |~#d2~0.base|))) (.cse2 (<= ULTIMATE.start_main_~i~0 (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset))) (.cse3 (= ULTIMATE.start_main_~pd1~0.base ULTIMATE.start_main_~pd2~0.base)) (.cse4 (= ULTIMATE.start_main_~pd2~0.base ULTIMATE.start_main_~pa~0.base)) (.cse6 (= ULTIMATE.start_main_~pd2~0.offset 0)) (.cse5 (= |~#d1~0.offset| 0)) (.cse7 (= ULTIMATE.start_main_~pa~0.offset 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~pd1~0.base |~#d1~0.base|) (= |~#d1~0.offset| ULTIMATE.start_main_~pd1~0.offset) .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~pd1~0.base |~#d2~0.base|) (= |~#d2~0.offset| ULTIMATE.start_main_~pd1~0.offset) .cse6 .cse5 .cse7))) [2020-10-20 00:44:13,139 INFO L274 CegarLoopResult]: For program point L40-4(lines 40 42) no Hoare annotation was computed. [2020-10-20 00:44:13,140 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:44:13,140 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:44:13,140 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:44:13,140 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:44:13,140 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-20 00:44:13,140 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:44:13,140 INFO L274 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-10-20 00:44:13,140 INFO L270 CegarLoopResult]: At program point L24-3(lines 22 25) the Hoare annotation is: (let ((.cse0 (= |~#d1~0.base| |ULTIMATE.start_get_dummy_#res.base|)) (.cse1 (= |~#d1~0.offset| 0))) (or (and (= |~#d2~0.offset| 0) (not (= |~#d1~0.base| |~#d2~0.base|)) .cse0 (= |~#d1~0.offset| |ULTIMATE.start_get_dummy_#res.offset|) .cse1) (and (= |ULTIMATE.start_get_dummy_#res.offset| 0) (not .cse0) (= |~#d2~0.offset| |ULTIMATE.start_get_dummy_#res.offset|) (= |ULTIMATE.start_get_dummy_#res.base| |~#d2~0.base|) .cse1))) [2020-10-20 00:44:13,140 INFO L274 CegarLoopResult]: For program point L24-4(line 24) no Hoare annotation was computed. [2020-10-20 00:44:13,141 INFO L274 CegarLoopResult]: For program point L24-6(line 24) no Hoare annotation was computed. [2020-10-20 00:44:13,141 INFO L270 CegarLoopResult]: At program point L24-7(lines 22 25) the Hoare annotation is: (or (and (= |~#d2~0.offset| 0) (or (and (not (= |~#d1~0.base| |ULTIMATE.start_get_dummy_#res.base|)) (= |~#d2~0.offset| |ULTIMATE.start_get_dummy_#res.offset|) (= |ULTIMATE.start_get_dummy_#res.base| |~#d2~0.base|) (= |~#d2~0.offset| ULTIMATE.start_main_~pd1~0.offset)) (and (= ULTIMATE.start_main_~pd1~0.base |~#d1~0.base|) (not (= ULTIMATE.start_main_~pd1~0.base |~#d2~0.base|)) (= |~#d1~0.offset| ULTIMATE.start_main_~pd1~0.offset) (= |~#d1~0.offset| |ULTIMATE.start_get_dummy_#res.offset|))) (= |~#d1~0.offset| 0)) (and (not (= |~#d1~0.base| |~#d2~0.base|)) (not (= ULTIMATE.start_main_~pd1~0.base |ULTIMATE.start_get_dummy_#res.base|)))) [2020-10-20 00:44:13,141 INFO L274 CegarLoopResult]: For program point L24-8(line 24) no Hoare annotation was computed. [2020-10-20 00:44:13,141 INFO L274 CegarLoopResult]: For program point L24-10(line 24) no Hoare annotation was computed. [2020-10-20 00:44:13,142 INFO L270 CegarLoopResult]: At program point L24-11(lines 22 25) the Hoare annotation is: (or (and (= |~#d2~0.offset| 0) (let ((.cse1 (= ULTIMATE.start_main_~pd1~0.base |~#d1~0.base|)) (.cse0 (= ULTIMATE.start_main_~pd2~0.offset ULTIMATE.start_main_~pd1~0.offset)) (.cse2 (= ULTIMATE.start_main_~pd1~0.base |~#d2~0.base|))) (or (and .cse0 .cse1 (= |~#d1~0.offset| ULTIMATE.start_main_~pd1~0.offset) (not .cse2)) (and (not .cse1) .cse0 .cse2 (= |~#d2~0.offset| ULTIMATE.start_main_~pd1~0.offset)))) (= |~#d1~0.offset| 0)) (and (not (= |~#d1~0.base| |~#d2~0.base|)) (not (= ULTIMATE.start_main_~pd1~0.base ULTIMATE.start_main_~pd2~0.base)))) [2020-10-20 00:44:13,142 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-20 00:44:13,144 INFO L274 CegarLoopResult]: For program point L37-2(lines 37 46) no Hoare annotation was computed. [2020-10-20 00:44:13,144 INFO L274 CegarLoopResult]: For program point L37-4(lines 37 46) no Hoare annotation was computed. [2020-10-20 00:44:13,144 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:44:13,144 INFO L270 CegarLoopResult]: At program point L29(lines 27 30) the Hoare annotation is: (let ((.cse10 (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) 0))) (let ((.cse0 (= |~#d2~0.offset| 0)) (.cse1 (not (= |~#d1~0.base| |~#d2~0.base|))) (.cse2 (<= 1 |ULTIMATE.start_check_#res|)) (.cse3 (= ULTIMATE.start_main_~pd1~0.base ULTIMATE.start_main_~pd2~0.base)) (.cse4 (<= ULTIMATE.start_main_~i~0 .cse10)) (.cse5 (= ULTIMATE.start_main_~pd2~0.base ULTIMATE.start_main_~pa~0.base)) (.cse6 (= |~#d1~0.offset| 0)) (.cse7 (= ULTIMATE.start_main_~pd2~0.offset 0)) (.cse8 (<= .cse10 ULTIMATE.start_main_~i~0)) (.cse9 (= ULTIMATE.start_main_~pa~0.offset 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~pd1~0.base |~#d2~0.base|) .cse6 (= |~#d2~0.offset| ULTIMATE.start_main_~pd1~0.offset) .cse7 .cse8 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~pd1~0.base |~#d1~0.base|) (= |~#d1~0.offset| ULTIMATE.start_main_~pd1~0.offset) .cse6 .cse7 .cse8 .cse9)))) [2020-10-20 00:44:13,145 INFO L274 CegarLoopResult]: For program point L13(lines 13 20) no Hoare annotation was computed. [2020-10-20 00:44:13,145 INFO L277 CegarLoopResult]: At program point L51(lines 32 52) the Hoare annotation is: true [2020-10-20 00:44:13,145 INFO L274 CegarLoopResult]: For program point L43(lines 43 45) no Hoare annotation was computed. [2020-10-20 00:44:13,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:44:13 BoogieIcfgContainer [2020-10-20 00:44:13,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:44:13,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:44:13,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:44:13,181 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:44:13,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:53" (3/4) ... [2020-10-20 00:44:13,185 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:44:13,196 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 00:44:13,196 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 00:44:13,196 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:44:13,197 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:44:13,221 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((d2 == 0 && !(d1 == d2)) && d1 == \result) && d1 == \result) && d1 == 0) || ((((\result == 0 && !(d1 == \result)) && d2 == \result) && \result == d2) && d1 == 0) [2020-10-20 00:44:13,221 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((d2 == 0 && ((((!(d1 == \result) && d2 == \result) && \result == d2) && d2 == pd1) || (((pd1 == d1 && !(pd1 == d2)) && d1 == pd1) && d1 == \result))) && d1 == 0) || (!(d1 == d2) && !(pd1 == \result)) [2020-10-20 00:44:13,222 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((d2 == 0 && !(d1 == d2)) && 1 <= \result) && pd1 == pd2) && i <= unknown-#memory_int-unknown[pd2][0]) && pd2 == pa) && pd1 == d2) && d1 == 0) && d2 == pd1) && pd2 == 0) && unknown-#memory_int-unknown[pd2][0] <= i) && pa == 0) || (((((((((((d2 == 0 && !(d1 == d2)) && 1 <= \result) && pd1 == pd2) && i <= unknown-#memory_int-unknown[pd2][0]) && pd2 == pa) && pd1 == d1) && d1 == pd1) && d1 == 0) && pd2 == 0) && unknown-#memory_int-unknown[pd2][0] <= i) && pa == 0) [2020-10-20 00:44:13,255 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:44:13,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:44:13,257 INFO L168 Benchmark]: Toolchain (without parser) took 20403.86 ms. Allocated memory was 36.2 MB in the beginning and 133.2 MB in the end (delta: 97.0 MB). Free memory was 10.3 MB in the beginning and 47.8 MB in the end (delta: -37.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:13,258 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 35.7 MB. Free memory was 14.9 MB in the beginning and 14.8 MB in the end (delta: 73.7 kB). Peak memory consumption was 73.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:44:13,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.52 ms. Allocated memory was 36.2 MB in the beginning and 44.0 MB in the end (delta: 7.9 MB). Free memory was 9.5 MB in the beginning and 26.4 MB in the end (delta: -16.9 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:13,259 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.88 ms. Allocated memory is still 44.0 MB. Free memory was 26.4 MB in the beginning and 24.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:13,259 INFO L168 Benchmark]: Boogie Preprocessor took 31.41 ms. Allocated memory is still 44.0 MB. Free memory was 24.4 MB in the beginning and 22.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:13,260 INFO L168 Benchmark]: RCFGBuilder took 445.45 ms. Allocated memory was 44.0 MB in the beginning and 46.7 MB in the end (delta: 2.6 MB). Free memory was 22.7 MB in the beginning and 18.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:13,261 INFO L168 Benchmark]: TraceAbstraction took 19439.80 ms. Allocated memory was 46.7 MB in the beginning and 133.2 MB in the end (delta: 86.5 MB). Free memory was 18.2 MB in the beginning and 52.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 95.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:13,261 INFO L168 Benchmark]: Witness Printer took 74.85 ms. Allocated memory is still 133.2 MB. Free memory was 52.1 MB in the beginning and 47.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:13,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 35.7 MB. Free memory was 14.9 MB in the beginning and 14.8 MB in the end (delta: 73.7 kB). Peak memory consumption was 73.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 356.52 ms. Allocated memory was 36.2 MB in the beginning and 44.0 MB in the end (delta: 7.9 MB). Free memory was 9.5 MB in the beginning and 26.4 MB in the end (delta: -16.9 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 42.88 ms. Allocated memory is still 44.0 MB. Free memory was 26.4 MB in the beginning and 24.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 31.41 ms. Allocated memory is still 44.0 MB. Free memory was 24.4 MB in the beginning and 22.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 445.45 ms. Allocated memory was 44.0 MB in the beginning and 46.7 MB in the end (delta: 2.6 MB). Free memory was 22.7 MB in the beginning and 18.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 19439.80 ms. Allocated memory was 46.7 MB in the beginning and 133.2 MB in the end (delta: 86.5 MB). Free memory was 18.2 MB in the beginning and 52.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 95.8 MB. Max. memory is 14.3 GB. * Witness Printer took 74.85 ms. Allocated memory is still 133.2 MB. Free memory was 52.1 MB in the beginning and 47.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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: ((((d2 == 0 && !(d1 == d2)) && d1 == \result) && d1 == \result) && d1 == 0) || ((((\result == 0 && !(d1 == \result)) && d2 == \result) && \result == d2) && d1 == 0) - InvariantResult [Line: 40]: Loop Invariant [2020-10-20 00:44:13,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,277 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((((((d2 == 0 && !(d1 == d2)) && i <= unknown-#memory_int-unknown[pa][pa]) && pd1 == pd2) && pd2 == pa) && pd1 == d1) && d1 == pd1) && d1 == 0) && pd2 == 0) && pa == 0) || (((((((((d2 == 0 && !(d1 == d2)) && i <= unknown-#memory_int-unknown[pa][pa]) && pd1 == pd2) && pd2 == pa) && pd1 == d2) && d2 == pd1) && pd2 == 0) && d1 == 0) && pa == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((d2 == 0 && ((((!(d1 == \result) && d2 == \result) && \result == d2) && d2 == pd1) || (((pd1 == d1 && !(pd1 == d2)) && d1 == pd1) && d1 == \result))) && d1 == 0) || (!(d1 == d2) && !(pd1 == \result)) - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((d2 == 0 && ((((pd2 == pd1 && pd1 == d1) && d1 == pd1) && !(pd1 == d2)) || (((!(pd1 == d1) && pd2 == pd1) && pd1 == d2) && d2 == pd1))) && d1 == 0) || (!(d1 == d2) && !(pd1 == pd2)) - InvariantResult [Line: 27]: Loop Invariant [2020-10-20 00:44:13,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,283 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,283 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,283 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:13,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((((((((d2 == 0 && !(d1 == d2)) && 1 <= \result) && pd1 == pd2) && i <= unknown-#memory_int-unknown[pd2][0]) && pd2 == pa) && pd1 == d2) && d1 == 0) && d2 == pd1) && pd2 == 0) && unknown-#memory_int-unknown[pd2][0] <= i) && pa == 0) || (((((((((((d2 == 0 && !(d1 == d2)) && 1 <= \result) && pd1 == pd2) && i <= unknown-#memory_int-unknown[pd2][0]) && pd2 == pa) && pd1 == d1) && d1 == pd1) && d1 == 0) && pd2 == 0) && unknown-#memory_int-unknown[pd2][0] <= i) && pa == 0) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.4s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 266 SDtfs, 1247 SDslu, 1869 SDs, 0 SdLazy, 3017 SolverSat, 436 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 349 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2344 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=8, 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, 11 MinimizatonAttempts, 363 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 43 NumberOfFragments, 295 HoareAnnotationTreeSize, 7 FomulaSimplifications, 7400476 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 377086 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 387 NumberOfCodeBlocks, 383 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 370 ConstructedInterpolants, 0 QuantifiedInterpolants, 50992 SizeOfPredicates, 75 NumberOfNonLiveVariables, 896 ConjunctsInSsa, 238 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 18/80 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...