./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/array_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-acceleration/array_1-2.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 0edc3db25587eb2dcb44164977e2a8fa1ed85700 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 02:25:27,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 02:25:27,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 02:25:27,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 02:25:27,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 02:25:27,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 02:25:27,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 02:25:27,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 02:25:27,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 02:25:27,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 02:25:27,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 02:25:27,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 02:25:27,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 02:25:27,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 02:25:27,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 02:25:27,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 02:25:27,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 02:25:27,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 02:25:27,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 02:25:27,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 02:25:27,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 02:25:27,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 02:25:27,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 02:25:27,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 02:25:27,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 02:25:27,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 02:25:27,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 02:25:27,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 02:25:27,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 02:25:27,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 02:25:27,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 02:25:27,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 02:25:27,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 02:25:27,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 02:25:27,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 02:25:27,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 02:25:27,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 02:25:27,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 02:25:27,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 02:25:27,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 02:25:27,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 02:25:27,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 02:25:27,789 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 02:25:27,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 02:25:27,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 02:25:27,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 02:25:27,792 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 02:25:27,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 02:25:27,792 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 02:25:27,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 02:25:27,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 02:25:27,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 02:25:27,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 02:25:27,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 02:25:27,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 02:25:27,794 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 02:25:27,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 02:25:27,794 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 02:25:27,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 02:25:27,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 02:25:27,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 02:25:27,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 02:25:27,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 02:25:27,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 02:25:27,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 02:25:27,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 02:25:27,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 02:25:27,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 02:25:27,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 02:25:27,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 02:25:27,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0edc3db25587eb2dcb44164977e2a8fa1ed85700 [2021-07-05 02:25:28,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 02:25:28,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 02:25:28,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 02:25:28,157 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 02:25:28,157 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 02:25:28,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/array_1-2.c [2021-07-05 02:25:28,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfd6ca711/ed6c060183fa4822a864bf493128b262/FLAG466cbc747 [2021-07-05 02:25:28,570 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 02:25:28,570 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array_1-2.c [2021-07-05 02:25:28,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfd6ca711/ed6c060183fa4822a864bf493128b262/FLAG466cbc747 [2021-07-05 02:25:28,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfd6ca711/ed6c060183fa4822a864bf493128b262 [2021-07-05 02:25:28,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 02:25:28,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 02:25:28,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 02:25:28,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 02:25:28,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 02:25:28,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 02:25:28" (1/1) ... [2021-07-05 02:25:28,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd884e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28, skipping insertion in model container [2021-07-05 02:25:28,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 02:25:28" (1/1) ... [2021-07-05 02:25:28,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 02:25:28,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 02:25:28,725 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array_1-2.c[321,334] [2021-07-05 02:25:28,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 02:25:28,752 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 02:25:28,779 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array_1-2.c[321,334] [2021-07-05 02:25:28,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 02:25:28,811 INFO L208 MainTranslator]: Completed translation [2021-07-05 02:25:28,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28 WrapperNode [2021-07-05 02:25:28,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 02:25:28,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 02:25:28,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 02:25:28,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 02:25:28,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28" (1/1) ... [2021-07-05 02:25:28,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28" (1/1) ... [2021-07-05 02:25:28,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 02:25:28,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 02:25:28,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 02:25:28,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 02:25:28,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28" (1/1) ... [2021-07-05 02:25:28,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28" (1/1) ... [2021-07-05 02:25:28,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28" (1/1) ... [2021-07-05 02:25:28,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28" (1/1) ... [2021-07-05 02:25:28,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28" (1/1) ... [2021-07-05 02:25:28,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28" (1/1) ... [2021-07-05 02:25:28,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28" (1/1) ... [2021-07-05 02:25:28,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 02:25:28,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 02:25:28,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 02:25:28,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 02:25:28,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28" (1/1) ... [2021-07-05 02:25:28,882 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 02:25:28,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 02:25:28,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-05 02:25:28,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-05 02:25:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-05 02:25:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 02:25:28,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 02:25:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-05 02:25:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 02:25:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 02:25:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 02:25:29,177 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 02:25:29,178 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-05 02:25:29,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 02:25:29 BoogieIcfgContainer [2021-07-05 02:25:29,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 02:25:29,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 02:25:29,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 02:25:29,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 02:25:29,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 02:25:28" (1/3) ... [2021-07-05 02:25:29,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dda55c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 02:25:29, skipping insertion in model container [2021-07-05 02:25:29,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:25:28" (2/3) ... [2021-07-05 02:25:29,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dda55c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 02:25:29, skipping insertion in model container [2021-07-05 02:25:29,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 02:25:29" (3/3) ... [2021-07-05 02:25:29,188 INFO L111 eAbstractionObserver]: Analyzing ICFG array_1-2.c [2021-07-05 02:25:29,197 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 02:25:29,197 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-05 02:25:29,262 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:25:29,272 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:25:29,272 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:25:29,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:29,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-05 02:25:29,290 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:25:29,290 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-05 02:25:29,291 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:25:29,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:25:29,297 INFO L82 PathProgramCache]: Analyzing trace with hash 889605037, now seen corresponding path program 1 times [2021-07-05 02:25:29,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:25:29,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153868269] [2021-07-05 02:25:29,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:25:29,309 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:25:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:25:29,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:25:29,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:25:29,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153868269] [2021-07-05 02:25:29,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153868269] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:25:29,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:25:29,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 02:25:29,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372734170] [2021-07-05 02:25:29,491 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 02:25:29,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:25:29,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 02:25:29,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:25:29,506 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:29,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:25:29,564 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2021-07-05 02:25:29,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 02:25:29,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-07-05 02:25:29,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:25:29,572 INFO L225 Difference]: With dead ends: 22 [2021-07-05 02:25:29,572 INFO L226 Difference]: Without dead ends: 10 [2021-07-05 02:25:29,574 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:25:29,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-07-05 02:25:29,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2021-07-05 02:25:29,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:29,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-07-05 02:25:29,597 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2021-07-05 02:25:29,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:25:29,597 INFO L442 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-07-05 02:25:29,598 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:29,598 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-07-05 02:25:29,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-05 02:25:29,598 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:25:29,598 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:25:29,599 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 02:25:29,599 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:25:29,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:25:29,600 INFO L82 PathProgramCache]: Analyzing trace with hash 265180975, now seen corresponding path program 1 times [2021-07-05 02:25:29,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:25:29,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835434279] [2021-07-05 02:25:29,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:25:29,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:25:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:25:29,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:25:29,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:25:29,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835434279] [2021-07-05 02:25:29,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835434279] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 02:25:29,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193465114] [2021-07-05 02:25:29,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:25:29,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 02:25:29,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 02:25:29,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-05 02:25:29,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-07-05 02:25:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:25:29,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-05 02:25:29,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 02:25:29,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:29,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:25:29,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 02:25:29,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:29,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:25:29,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 02:25:29,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:29,880 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-07-05 02:25:29,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:29,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:29,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:25:29,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193465114] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 02:25:29,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-05 02:25:29,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-07-05 02:25:29,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129936297] [2021-07-05 02:25:29,896 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 02:25:29,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:25:29,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 02:25:29,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:25:29,899 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:29,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:25:29,922 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-07-05 02:25:29,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 02:25:29,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-07-05 02:25:29,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:25:29,923 INFO L225 Difference]: With dead ends: 16 [2021-07-05 02:25:29,923 INFO L226 Difference]: Without dead ends: 12 [2021-07-05 02:25:29,924 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.2ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:25:29,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-07-05 02:25:29,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-07-05 02:25:29,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:29,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-07-05 02:25:29,927 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2021-07-05 02:25:29,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:25:29,928 INFO L442 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-07-05 02:25:29,928 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:29,928 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-07-05 02:25:29,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-05 02:25:29,929 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:25:29,929 INFO L525 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-07-05 02:25:29,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-07-05 02:25:30,142 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 02:25:30,142 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:25:30,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:25:30,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1489078833, now seen corresponding path program 2 times [2021-07-05 02:25:30,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:25:30,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382268444] [2021-07-05 02:25:30,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:25:30,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:25:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:25:30,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,215 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:25:30,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:25:30,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382268444] [2021-07-05 02:25:30,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382268444] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 02:25:30,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375643985] [2021-07-05 02:25:30,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-07-05 02:25:30,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 02:25:30,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 02:25:30,220 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-05 02:25:30,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-07-05 02:25:30,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-05 02:25:30,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-05 02:25:30,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-05 02:25:30,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 02:25:30,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:25:30,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 02:25:30,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:25:30,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 02:25:30,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:25:30,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 02:25:30,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 02:25:30,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 02:25:30,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,299 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-07-05 02:25:30,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:25:30,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375643985] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 02:25:30,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-05 02:25:30,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-05 02:25:30,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592966728] [2021-07-05 02:25:30,307 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 02:25:30,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:25:30,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 02:25:30,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-07-05 02:25:30,309 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:30,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:25:30,324 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-07-05 02:25:30,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 02:25:30,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-07-05 02:25:30,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:25:30,325 INFO L225 Difference]: With dead ends: 18 [2021-07-05 02:25:30,325 INFO L226 Difference]: Without dead ends: 14 [2021-07-05 02:25:30,325 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 18.2ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-07-05 02:25:30,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-07-05 02:25:30,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-07-05 02:25:30,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:30,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-07-05 02:25:30,328 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2021-07-05 02:25:30,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:25:30,328 INFO L442 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-07-05 02:25:30,329 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:30,329 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-07-05 02:25:30,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-05 02:25:30,329 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:25:30,329 INFO L525 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1] [2021-07-05 02:25:30,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-07-05 02:25:30,533 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-07-05 02:25:30,534 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:25:30,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:25:30,534 INFO L82 PathProgramCache]: Analyzing trace with hash 833881267, now seen corresponding path program 3 times [2021-07-05 02:25:30,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:25:30,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204121189] [2021-07-05 02:25:30,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:25:30,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:25:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:25:30,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,619 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:25:30,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:25:30,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204121189] [2021-07-05 02:25:30,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204121189] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 02:25:30,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089506749] [2021-07-05 02:25:30,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-07-05 02:25:30,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 02:25:30,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 02:25:30,623 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-05 02:25:30,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-07-05 02:25:30,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-05 02:25:30,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-05 02:25:30,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-05 02:25:30,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 02:25:30,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:30,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 02:25:30,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:25:30,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 02:25:30,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:25:30,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 02:25:30,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:25:30,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-07-05 02:25:30,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:25:30,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 02:25:30,713 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-05 02:25:30,723 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 02:25:30,729 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-05 02:25:30,729 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2021-07-05 02:25:30,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 02:25:30,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 02:25:30,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:25:30,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-05 02:25:30,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:25:30,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-05 02:25:30,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:25:30,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-05 02:25:30,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:25:30,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-05 02:25:30,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:25:30,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-05 02:25:30,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:25:30,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-05 02:25:30,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 02:25:30,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-05 02:25:30,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-05 02:25:30,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-05 02:25:30,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 02:25:30,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-05 02:25:30,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 02:25:30,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-05 02:25:30,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 02:25:30,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-05 02:25:30,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-05 02:25:30,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-05 02:25:30,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-05 02:25:30,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,886 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-07-05 02:25:30,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:25:30,893 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-05 02:25:30,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-05 02:25:30,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-05 02:25:30,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-05 02:25:30,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-05 02:25:30,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,914 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-07-05 02:25:30,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:25:30,916 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-05 02:25:30,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-05 02:25:30,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-05 02:25:30,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 02:25:30,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,937 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-07-05 02:25:30,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:25:30,938 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-05 02:25:30,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-05 02:25:30,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-05 02:25:30,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-05 02:25:30,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-05 02:25:30,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-05 02:25:30,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 02:25:30,969 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-07-05 02:25:30,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:25:30,974 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 02:25:30,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:30,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:30,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:25:31,002 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-07-05 02:25:31,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:31,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:31,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:31,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:31,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:31,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:25:31,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:25:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-05 02:25:31,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089506749] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:25:31,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-05 02:25:31,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-07-05 02:25:31,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157925412] [2021-07-05 02:25:31,006 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 02:25:31,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:25:31,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 02:25:31,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-07-05 02:25:31,008 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:33,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:25:33,089 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-07-05 02:25:33,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-05 02:25:33,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-07-05 02:25:33,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:25:33,090 INFO L225 Difference]: With dead ends: 13 [2021-07-05 02:25:33,090 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:25:33,091 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 110.7ms TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-07-05 02:25:33,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:25:33,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:25:33,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:33,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:25:33,091 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-07-05 02:25:33,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:25:33,091 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:25:33,091 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 02:25:33,091 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:25:33,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:25:33,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:25:33,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:25:33,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:25:33,115 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:25:33,116 INFO L762 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2021-07-05 02:25:33,116 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:25:33,116 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:25:33,116 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:25:33,116 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-07-05 02:25:33,116 INFO L762 garLoopResultBuilder]: For program point L16-2(lines 16 18) no Hoare annotation was computed. [2021-07-05 02:25:33,117 INFO L758 garLoopResultBuilder]: At program point L16-3(lines 16 18) the Hoare annotation is: (or (= ULTIMATE.start_main_~i~0 0) (exists ((v_ULTIMATE.start_main_~i~0_12 Int)) (and (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0.base|) (+ (* v_ULTIMATE.start_main_~i~0_12 4) |ULTIMATE.start_main_~#A~0.offset|)) v_ULTIMATE.start_main_~i~0_12) (< v_ULTIMATE.start_main_~i~0_12 1024) (<= ULTIMATE.start_main_~i~0 (+ v_ULTIMATE.start_main_~i~0_12 1))))) [2021-07-05 02:25:33,117 INFO L762 garLoopResultBuilder]: For program point L16-4(lines 16 18) no Hoare annotation was computed. [2021-07-05 02:25:33,117 INFO L762 garLoopResultBuilder]: For program point L12(lines 12 21) no Hoare annotation was computed. [2021-07-05 02:25:33,117 INFO L762 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-07-05 02:25:33,117 INFO L765 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2021-07-05 02:25:33,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-07-05 02:25:33,320 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 02:25:33,321 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:25:33,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,337 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,337 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,337 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 02:25:33 BoogieIcfgContainer [2021-07-05 02:25:33,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 02:25:33,340 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 02:25:33,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 02:25:33,342 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 02:25:33,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 02:25:29" (3/4) ... [2021-07-05 02:25:33,345 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-05 02:25:33,353 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-07-05 02:25:33,353 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-05 02:25:33,354 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-07-05 02:25:33,354 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-05 02:25:33,376 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: i == 0 || (\exists v_ULTIMATE.start_main_~i~0_12 : int :: (unknown-#memory_int-unknown[A][v_ULTIMATE.start_main_~i~0_12 * 4 + A] == v_ULTIMATE.start_main_~i~0_12 && v_ULTIMATE.start_main_~i~0_12 < 1024) && i <= v_ULTIMATE.start_main_~i~0_12 + 1) [2021-07-05 02:25:33,380 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 02:25:33,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 02:25:33,381 INFO L168 Benchmark]: Toolchain (without parser) took 4782.40 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 45.5 MB in the beginning and 41.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2021-07-05 02:25:33,381 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 65.0 MB. Free memory is still 47.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 02:25:33,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.94 ms. Allocated memory is still 65.0 MB. Free memory was 45.3 MB in the beginning and 48.9 MB in the end (delta: -3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-05 02:25:33,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.47 ms. Allocated memory is still 65.0 MB. Free memory was 48.9 MB in the beginning and 47.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 02:25:33,381 INFO L168 Benchmark]: Boogie Preprocessor took 31.77 ms. Allocated memory is still 65.0 MB. Free memory was 47.6 MB in the beginning and 46.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 02:25:33,381 INFO L168 Benchmark]: RCFGBuilder took 304.02 ms. Allocated memory is still 65.0 MB. Free memory was 46.6 MB in the beginning and 35.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-05 02:25:33,382 INFO L168 Benchmark]: TraceAbstraction took 4159.16 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 34.4 MB in the beginning and 43.4 MB in the end (delta: -9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-05 02:25:33,382 INFO L168 Benchmark]: Witness Printer took 39.46 ms. Allocated memory is still 81.8 MB. Free memory was 43.4 MB in the beginning and 41.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 02:25:33,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 65.0 MB. Free memory is still 47.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 212.94 ms. Allocated memory is still 65.0 MB. Free memory was 45.3 MB in the beginning and 48.9 MB in the end (delta: -3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.47 ms. Allocated memory is still 65.0 MB. Free memory was 48.9 MB in the beginning and 47.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.77 ms. Allocated memory is still 65.0 MB. Free memory was 47.6 MB in the beginning and 46.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 304.02 ms. Allocated memory is still 65.0 MB. Free memory was 46.6 MB in the beginning and 35.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4159.16 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 34.4 MB in the beginning and 43.4 MB in the end (delta: -9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 39.46 ms. Allocated memory is still 81.8 MB. Free memory was 43.4 MB in the beginning and 41.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4064.1ms, OverallIterations: 4, TraceHistogramMax: 3, EmptinessCheckTime: 9.4ms, AutomataDifference: 2211.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 20.6ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 9 SDslu, 31 SDs, 0 SdLazy, 44 SolverSat, 3 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2094.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 165.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 18.1ms AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 26 HoareAnnotationTreeSize, 2 FomulaSimplifications, 50 FormulaSimplificationTreeSizeReduction, 6.5ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 9.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 39.1ms SsaConstructionTime, 131.8ms SatisfiabilityAnalysisTime, 752.4ms InterpolantComputationTime, 66 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 59 ConstructedInterpolants, 2 QuantifiedInterpolants, 161 SizeOfPredicates, 6 NumberOfNonLiveVariables, 173 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 9/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant [2021-07-05 02:25:33,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,393 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2021-07-05 02:25:33,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] Derived loop invariant: i == 0 || (\exists v_ULTIMATE.start_main_~i~0_12 : int :: (unknown-#memory_int-unknown[A][v_ULTIMATE.start_main_~i~0_12 * 4 + A] == v_ULTIMATE.start_main_~i~0_12 && v_ULTIMATE.start_main_~i~0_12 < 1024) && i <= v_ULTIMATE.start_main_~i~0_12 + 1) - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-07-05 02:25:33,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...