./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/verifythis/elimination_max.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/verifythis/elimination_max.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 b909735efeb9bc00b7df4035956af92a753b9076 ............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/verifythis/elimination_max.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 b909735efeb9bc00b7df4035956af92a753b9076 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 22:31:21,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:31:21,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:31:22,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:31:22,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:31:22,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:31:22,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:31:22,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:31:22,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:31:22,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:31:22,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:31:22,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:31:22,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:31:22,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:31:22,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:31:22,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:31:22,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:31:22,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:31:22,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:31:22,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:31:22,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:31:22,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:31:22,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:31:22,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:31:22,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:31:22,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:31:22,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:31:22,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:31:22,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:31:22,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:31:22,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:31:22,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:31:22,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:31:22,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:31:22,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:31:22,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:31:22,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:31:22,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:31:22,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:31:22,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:31:22,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:31:22,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 22:31:22,192 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:31:22,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:31:22,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:31:22,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:31:22,198 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:31:22,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:31:22,199 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:31:22,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 22:31:22,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:31:22,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:31:22,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:31:22,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:31:22,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:31:22,202 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:31:22,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:31:22,203 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:31:22,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:31:22,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:31:22,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:31:22,204 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:31:22,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:31:22,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:31:22,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:31:22,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:31:22,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:31:22,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 22:31:22,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 22:31:22,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:31:22,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:31:22,207 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b909735efeb9bc00b7df4035956af92a753b9076 [2020-10-25 22:31:22,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:31:22,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:31:22,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:31:22,770 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:31:22,772 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:31:22,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max.c [2020-10-25 22:31:22,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/381210dc3/83e68211f83641838d439f02ec4dbad4/FLAGd086aa1ca [2020-10-25 22:31:23,433 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:31:23,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max.c [2020-10-25 22:31:23,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/381210dc3/83e68211f83641838d439f02ec4dbad4/FLAGd086aa1ca [2020-10-25 22:31:23,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/381210dc3/83e68211f83641838d439f02ec4dbad4 [2020-10-25 22:31:23,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:31:23,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:31:23,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:31:23,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:31:23,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:31:23,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:31:23" (1/1) ... [2020-10-25 22:31:23,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777adff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:23, skipping insertion in model container [2020-10-25 22:31:23,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:31:23" (1/1) ... [2020-10-25 22:31:23,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:31:23,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:31:24,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:31:24,094 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:31:24,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:31:24,134 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:31:24,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:24 WrapperNode [2020-10-25 22:31:24,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:31:24,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:31:24,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:31:24,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:31:24,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:24" (1/1) ... [2020-10-25 22:31:24,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:24" (1/1) ... [2020-10-25 22:31:24,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:31:24,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:31:24,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:31:24,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:31:24,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:24" (1/1) ... [2020-10-25 22:31:24,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:24" (1/1) ... [2020-10-25 22:31:24,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:24" (1/1) ... [2020-10-25 22:31:24,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:24" (1/1) ... [2020-10-25 22:31:24,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:24" (1/1) ... [2020-10-25 22:31:24,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:24" (1/1) ... [2020-10-25 22:31:24,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:24" (1/1) ... [2020-10-25 22:31:24,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:31:24,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:31:24,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:31:24,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:31:24,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:31:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 22:31:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 22:31:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-25 22:31:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:31:24,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:31:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 22:31:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 22:31:24,714 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:31:24,714 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-25 22:31:24,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:31:24 BoogieIcfgContainer [2020-10-25 22:31:24,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:31:24,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:31:24,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:31:24,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:31:24,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:31:23" (1/3) ... [2020-10-25 22:31:24,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a00a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:31:24, skipping insertion in model container [2020-10-25 22:31:24,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:24" (2/3) ... [2020-10-25 22:31:24,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a00a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:31:24, skipping insertion in model container [2020-10-25 22:31:24,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:31:24" (3/3) ... [2020-10-25 22:31:24,733 INFO L111 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2020-10-25 22:31:24,763 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:31:24,769 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-25 22:31:24,784 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-25 22:31:24,833 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:31:24,834 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:31:24,834 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:31:24,835 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:31:24,836 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:31:24,836 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:31:24,836 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:31:24,836 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:31:24,851 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-25 22:31:24,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 22:31:24,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:31:24,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:31:24,857 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:31:24,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:31:24,863 INFO L82 PathProgramCache]: Analyzing trace with hash -489201995, now seen corresponding path program 1 times [2020-10-25 22:31:24,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:31:24,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768073663] [2020-10-25 22:31:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:31:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:31:25,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:31:25,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768073663] [2020-10-25 22:31:25,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:31:25,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 22:31:25,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192655191] [2020-10-25 22:31:25,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 22:31:25,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:31:25,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 22:31:25,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 22:31:25,117 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-25 22:31:25,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:31:25,145 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2020-10-25 22:31:25,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 22:31:25,147 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-25 22:31:25,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:31:25,160 INFO L225 Difference]: With dead ends: 47 [2020-10-25 22:31:25,160 INFO L226 Difference]: Without dead ends: 20 [2020-10-25 22:31:25,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 22:31:25,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-25 22:31:25,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-25 22:31:25,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-25 22:31:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2020-10-25 22:31:25,218 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2020-10-25 22:31:25,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:31:25,219 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2020-10-25 22:31:25,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 22:31:25,220 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-10-25 22:31:25,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 22:31:25,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:31:25,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:31:25,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 22:31:25,223 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:31:25,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:31:25,226 INFO L82 PathProgramCache]: Analyzing trace with hash 190915957, now seen corresponding path program 1 times [2020-10-25 22:31:25,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:31:25,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62746584] [2020-10-25 22:31:25,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:31:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:31:25,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:31:25,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62746584] [2020-10-25 22:31:25,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:31:25,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 22:31:25,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390172702] [2020-10-25 22:31:25,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 22:31:25,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:31:25,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 22:31:25,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:31:25,522 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 5 states. [2020-10-25 22:31:25,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:31:25,584 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2020-10-25 22:31:25,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 22:31:25,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-25 22:31:25,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:31:25,586 INFO L225 Difference]: With dead ends: 20 [2020-10-25 22:31:25,586 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 22:31:25,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-25 22:31:25,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 22:31:25,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 22:31:25,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 22:31:25,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 22:31:25,610 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-25 22:31:25,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:31:25,610 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 22:31:25,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 22:31:25,610 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 22:31:25,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 22:31:25,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 22:31:25,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 22:31:25,669 INFO L270 CegarLoopResult]: At program point L35-2(lines 25 37) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc9.base|)) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) .cse0))) [2020-10-25 22:31:25,670 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-10-25 22:31:25,670 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-10-25 22:31:25,670 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-10-25 22:31:25,670 INFO L274 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-25 22:31:25,670 INFO L274 CegarLoopResult]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2020-10-25 22:31:25,670 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 22:31:25,670 INFO L274 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-10-25 22:31:25,671 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 22:31:25,671 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 22:31:25,671 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-10-25 22:31:25,672 INFO L274 CegarLoopResult]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2020-10-25 22:31:25,672 INFO L270 CegarLoopResult]: At program point L45-3(lines 45 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc9.base|)) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) .cse0))) [2020-10-25 22:31:25,673 INFO L274 CegarLoopResult]: For program point L45-4(lines 45 47) no Hoare annotation was computed. [2020-10-25 22:31:25,673 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-25 22:31:25,673 INFO L274 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-10-25 22:31:25,673 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 22:31:25,674 INFO L274 CegarLoopResult]: For program point L25-2(lines 25 37) no Hoare annotation was computed. [2020-10-25 22:31:25,674 INFO L277 CegarLoopResult]: At program point L50(lines 16 51) the Hoare annotation is: true [2020-10-25 22:31:25,674 INFO L274 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-25 22:31:25,675 INFO L274 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-10-25 22:31:25,675 INFO L274 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed. [2020-10-25 22:31:25,676 INFO L274 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed. [2020-10-25 22:31:25,676 INFO L274 CegarLoopResult]: For program point L10(lines 10 12) no Hoare annotation was computed. [2020-10-25 22:31:25,676 INFO L274 CegarLoopResult]: For program point L10-1(lines 10 12) no Hoare annotation was computed. [2020-10-25 22:31:25,676 INFO L274 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-10-25 22:31:25,687 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-25 22:31:25,702 INFO L168 Benchmark]: Toolchain (without parser) took 1924.92 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 23.3 MB in the beginning and 23.7 MB in the end (delta: -391.5 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:31:25,704 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 33.6 MB. Free memory is still 16.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:31:25,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.03 ms. Allocated memory is still 41.9 MB. Free memory was 22.7 MB in the beginning and 22.9 MB in the end (delta: -204.4 kB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-10-25 22:31:25,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.13 ms. Allocated memory is still 41.9 MB. Free memory was 22.8 MB in the beginning and 21.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:31:25,708 INFO L168 Benchmark]: Boogie Preprocessor took 29.69 ms. Allocated memory is still 41.9 MB. Free memory was 21.2 MB in the beginning and 19.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 22:31:25,711 INFO L168 Benchmark]: RCFGBuilder took 506.27 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 19.8 MB in the beginning and 34.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-10-25 22:31:25,715 INFO L168 Benchmark]: TraceAbstraction took 980.36 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 23.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2020-10-25 22:31:25,725 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 33.6 MB. Free memory is still 16.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 349.03 ms. Allocated memory is still 41.9 MB. Free memory was 22.7 MB in the beginning and 22.9 MB in the end (delta: -204.4 kB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.13 ms. Allocated memory is still 41.9 MB. Free memory was 22.8 MB in the beginning and 21.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.69 ms. Allocated memory is still 41.9 MB. Free memory was 21.2 MB in the beginning and 19.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 506.27 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 19.8 MB in the beginning and 34.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 980.36 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 23.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-5485861 [2020-10-25 22:31:28,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:31:28,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:31:28,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:31:28,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:31:28,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:31:28,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:31:28,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:31:28,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:31:28,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:31:28,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:31:28,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:31:28,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:31:28,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:31:28,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:31:28,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:31:28,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:31:28,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:31:28,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:31:28,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:31:28,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:31:28,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:31:28,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:31:28,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:31:28,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:31:28,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:31:28,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:31:28,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:31:28,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:31:28,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:31:28,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:31:28,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:31:28,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:31:28,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:31:28,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:31:28,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:31:28,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:31:28,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:31:28,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:31:28,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:31:28,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:31:28,478 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 22:31:28,531 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:31:28,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:31:28,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:31:28,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:31:28,535 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:31:28,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:31:28,536 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:31:28,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:31:28,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:31:28,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:31:28,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:31:28,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:31:28,539 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 22:31:28,540 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 22:31:28,540 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:31:28,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:31:28,540 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:31:28,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:31:28,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:31:28,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:31:28,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:31:28,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:31:28,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:31:28,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:31:28,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:31:28,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:31:28,544 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 22:31:28,544 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 22:31:28,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:31:28,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:31:28,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 22:31:28,545 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b909735efeb9bc00b7df4035956af92a753b9076 [2020-10-25 22:31:29,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:31:29,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:31:29,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:31:29,113 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:31:29,114 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:31:29,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max.c [2020-10-25 22:31:29,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2152dffe4/ba980df335164002bc8174d991ad9e82/FLAG2a143fbd9 [2020-10-25 22:31:29,947 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:31:29,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max.c [2020-10-25 22:31:29,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2152dffe4/ba980df335164002bc8174d991ad9e82/FLAG2a143fbd9 [2020-10-25 22:31:30,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2152dffe4/ba980df335164002bc8174d991ad9e82 [2020-10-25 22:31:30,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:31:30,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:31:30,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:31:30,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:31:30,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:31:30,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:31:30" (1/1) ... [2020-10-25 22:31:30,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d6c458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30, skipping insertion in model container [2020-10-25 22:31:30,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:31:30" (1/1) ... [2020-10-25 22:31:30,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:31:30,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:31:30,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:31:30,572 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:31:30,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:31:30,619 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:31:30,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30 WrapperNode [2020-10-25 22:31:30,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:31:30,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:31:30,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:31:30,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:31:30,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30" (1/1) ... [2020-10-25 22:31:30,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30" (1/1) ... [2020-10-25 22:31:30,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:31:30,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:31:30,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:31:30,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:31:30,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30" (1/1) ... [2020-10-25 22:31:30,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30" (1/1) ... [2020-10-25 22:31:30,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30" (1/1) ... [2020-10-25 22:31:30,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30" (1/1) ... [2020-10-25 22:31:30,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30" (1/1) ... [2020-10-25 22:31:30,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30" (1/1) ... [2020-10-25 22:31:30,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30" (1/1) ... [2020-10-25 22:31:30,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:31:30,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:31:30,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:31:30,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:31:30,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:31:30,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 22:31:30,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 22:31:30,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-25 22:31:30,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 22:31:30,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:31:30,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:31:30,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 22:31:31,483 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:31:31,483 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-25 22:31:31,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:31:31 BoogieIcfgContainer [2020-10-25 22:31:31,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:31:31,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:31:31,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:31:31,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:31:31,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:31:30" (1/3) ... [2020-10-25 22:31:31,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743958c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:31:31, skipping insertion in model container [2020-10-25 22:31:31,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:31:30" (2/3) ... [2020-10-25 22:31:31,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743958c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:31:31, skipping insertion in model container [2020-10-25 22:31:31,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:31:31" (3/3) ... [2020-10-25 22:31:31,494 INFO L111 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2020-10-25 22:31:31,508 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:31:31,514 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-25 22:31:31,530 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-25 22:31:31,566 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:31:31,567 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:31:31,567 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:31:31,567 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:31:31,567 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:31:31,567 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:31:31,567 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:31:31,568 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:31:31,584 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-25 22:31:31,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 22:31:31,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:31:31,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:31:31,591 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:31:31,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:31:31,599 INFO L82 PathProgramCache]: Analyzing trace with hash -489201995, now seen corresponding path program 1 times [2020-10-25 22:31:31,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:31:31,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512339435] [2020-10-25 22:31:31,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-25 22:31:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:31:31,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 22:31:31,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:31:31,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:31:31,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:31:31,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:31:31,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512339435] [2020-10-25 22:31:31,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:31:31,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 22:31:31,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270413314] [2020-10-25 22:31:31,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 22:31:31,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:31:31,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 22:31:31,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 22:31:31,815 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-25 22:31:31,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:31:31,852 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2020-10-25 22:31:31,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 22:31:31,854 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-25 22:31:31,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:31:31,865 INFO L225 Difference]: With dead ends: 47 [2020-10-25 22:31:31,865 INFO L226 Difference]: Without dead ends: 20 [2020-10-25 22:31:31,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 22:31:31,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-25 22:31:31,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-25 22:31:31,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-25 22:31:31,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2020-10-25 22:31:31,917 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2020-10-25 22:31:31,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:31:31,918 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2020-10-25 22:31:31,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 22:31:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-10-25 22:31:31,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 22:31:31,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:31:31,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:31:32,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 22:31:32,145 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:31:32,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:31:32,147 INFO L82 PathProgramCache]: Analyzing trace with hash 190915957, now seen corresponding path program 1 times [2020-10-25 22:31:32,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:31:32,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533090557] [2020-10-25 22:31:32,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-25 22:31:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:31:32,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-25 22:31:32,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:31:32,396 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-25 22:31:32,396 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:31:32,526 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-25 22:31:32,528 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-25 22:31:32,736 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2020-10-25 22:31:32,742 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-10-25 22:31:32,743 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:31:32,847 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-25 22:31:32,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:31:32,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:31:32,973 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-25 22:31:32,974 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2020-10-25 22:31:32,975 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:32,980 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-25 22:31:32,984 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-25 22:31:32,985 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-25 22:31:32,985 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2020-10-25 22:31:33,081 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-25 22:31:33,081 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:31:33,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533090557] [2020-10-25 22:31:33,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:31:33,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 7] imperfect sequences [] total 15 [2020-10-25 22:31:33,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915358000] [2020-10-25 22:31:33,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-25 22:31:33,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:31:33,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-25 22:31:33,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2020-10-25 22:31:33,290 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 15 states. [2020-10-25 22:31:33,947 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2020-10-25 22:31:34,229 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 26 [2020-10-25 22:31:34,612 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 29 [2020-10-25 22:31:35,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:31:35,143 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-10-25 22:31:35,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-25 22:31:35,144 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2020-10-25 22:31:35,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:31:35,147 INFO L225 Difference]: With dead ends: 42 [2020-10-25 22:31:35,148 INFO L226 Difference]: Without dead ends: 38 [2020-10-25 22:31:35,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=173, Invalid=477, Unknown=0, NotChecked=0, Total=650 [2020-10-25 22:31:35,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-25 22:31:35,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2020-10-25 22:31:35,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-25 22:31:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2020-10-25 22:31:35,159 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 11 [2020-10-25 22:31:35,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:31:35,159 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-10-25 22:31:35,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-25 22:31:35,160 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2020-10-25 22:31:35,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-25 22:31:35,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:31:35,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:31:35,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 22:31:35,372 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:31:35,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:31:35,374 INFO L82 PathProgramCache]: Analyzing trace with hash -138608584, now seen corresponding path program 1 times [2020-10-25 22:31:35,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:31:35,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605016063] [2020-10-25 22:31:35,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-25 22:31:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:31:35,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-25 22:31:35,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:31:35,563 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-25 22:31:35,564 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:31:35,970 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-25 22:31:35,972 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-25 22:31:36,274 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-10-25 22:31:36,285 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2020-10-25 22:31:36,285 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-25 22:31:36,414 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:31:36,420 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:31:36,425 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:31:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:31:36,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:31:36,737 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-25 22:31:36,737 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,322 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2020-10-25 22:31:37,323 INFO L350 Elim1Store]: treesize reduction 17, result has 83.0 percent of original size [2020-10-25 22:31:37,324 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 90 [2020-10-25 22:31:37,327 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,328 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,330 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,331 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,332 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,334 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,335 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,337 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,338 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,340 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,341 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,343 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,344 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,346 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,348 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,349 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,350 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,352 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,353 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,354 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,356 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,357 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,360 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,360 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,362 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:37,363 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:37,364 INFO L545 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-25 22:31:37,771 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2020-10-25 22:31:37,772 INFO L625 ElimStorePlain]: treesize reduction 55, result has 48.6 percent of original size [2020-10-25 22:31:37,786 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-25 22:31:37,786 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:58, output treesize:41 [2020-10-25 22:31:37,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:31:37,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605016063] [2020-10-25 22:31:37,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 22:31:37,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2020-10-25 22:31:37,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287897817] [2020-10-25 22:31:37,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-25 22:31:37,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:31:37,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-25 22:31:37,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2020-10-25 22:31:37,984 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 19 states. [2020-10-25 22:31:38,815 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 33 [2020-10-25 22:31:39,209 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 33 [2020-10-25 22:31:39,842 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 33 [2020-10-25 22:31:40,195 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-10-25 22:31:40,475 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-10-25 22:31:41,351 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2020-10-25 22:31:41,757 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-25 22:31:42,286 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 38 [2020-10-25 22:31:42,481 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-10-25 22:31:42,771 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-10-25 22:31:43,208 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 41 [2020-10-25 22:31:43,620 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-10-25 22:31:49,492 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 36 [2020-10-25 22:31:49,863 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 36 [2020-10-25 22:31:49,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:31:49,906 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2020-10-25 22:31:49,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-25 22:31:49,909 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 13 [2020-10-25 22:31:49,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:31:49,911 INFO L225 Difference]: With dead ends: 73 [2020-10-25 22:31:49,911 INFO L226 Difference]: Without dead ends: 69 [2020-10-25 22:31:49,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=484, Invalid=1868, Unknown=0, NotChecked=0, Total=2352 [2020-10-25 22:31:49,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-25 22:31:49,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 36. [2020-10-25 22:31:49,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-25 22:31:49,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-10-25 22:31:49,939 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 13 [2020-10-25 22:31:49,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:31:49,940 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-10-25 22:31:49,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-25 22:31:49,941 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-10-25 22:31:49,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-25 22:31:49,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:31:49,945 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:31:50,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-25 22:31:50,161 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:31:50,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:31:50,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1504072515, now seen corresponding path program 1 times [2020-10-25 22:31:50,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:31:50,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568073687] [2020-10-25 22:31:50,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-25 22:31:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:31:50,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 26 conjunts are in the unsatisfiable core [2020-10-25 22:31:50,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:31:50,363 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-25 22:31:50,364 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:31:50,797 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-10-25 22:31:51,171 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-10-25 22:31:51,175 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-25 22:31:51,176 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-25 22:31:51,489 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-10-25 22:31:51,494 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2020-10-25 22:31:51,494 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-25 22:31:51,608 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-25 22:31:51,610 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-25 22:31:51,612 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-25 22:31:51,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:31:51,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:31:52,075 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-25 22:31:52,076 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:53,415 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2020-10-25 22:31:53,417 INFO L350 Elim1Store]: treesize reduction 17, result has 83.0 percent of original size [2020-10-25 22:31:53,417 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 93 [2020-10-25 22:31:53,419 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,420 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:53,422 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-25 22:31:53,423 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,424 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,425 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,426 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:53,427 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-25 22:31:53,428 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,431 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,432 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:53,433 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-25 22:31:53,434 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,437 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,438 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:53,439 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-25 22:31:53,440 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,441 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,442 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,443 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:53,444 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-25 22:31:53,445 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,447 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,448 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 22:31:53,449 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-25 22:31:53,450 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-25 22:31:53,451 INFO L545 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-25 22:31:53,762 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2020-10-25 22:31:53,763 INFO L625 ElimStorePlain]: treesize reduction 48, result has 59.3 percent of original size [2020-10-25 22:31:53,769 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-25 22:31:53,770 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:86, output treesize:60 [2020-10-25 22:31:54,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:31:54,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568073687] [2020-10-25 22:31:54,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 22:31:54,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2020-10-25 22:31:54,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390073429] [2020-10-25 22:31:54,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-25 22:31:54,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:31:54,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-25 22:31:54,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2020-10-25 22:31:54,041 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 23 states. [2020-10-25 22:31:55,157 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-25 22:31:55,319 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 33 [2020-10-25 22:31:55,872 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-25 22:31:56,117 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 33 [2020-10-25 22:31:56,561 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-10-25 22:31:57,233 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-25 22:31:57,802 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 52 [2020-10-25 22:31:58,099 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2020-10-25 22:31:58,628 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-10-25 22:31:59,220 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-25 22:31:59,921 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-25 22:32:00,761 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2020-10-25 22:32:01,168 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2020-10-25 22:32:01,592 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-25 22:32:02,665 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2020-10-25 22:32:03,192 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 41 [2020-10-25 22:32:04,048 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-10-25 22:32:04,539 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-25 22:32:05,144 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-25 22:32:05,837 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2020-10-25 22:32:10,993 WARN L193 SmtUtils]: Spent 4.69 s on a formula simplification. DAG size of input: 103 DAG size of output: 54 [2020-10-25 22:32:11,414 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-10-25 22:32:12,006 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-25 22:32:12,503 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-25 22:32:15,249 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-25 22:32:16,803 WARN L193 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 44 [2020-10-25 22:32:19,585 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2020-10-25 22:32:20,992 WARN L193 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 47 [2020-10-25 22:32:21,323 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-10-25 22:32:22,162 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-10-25 22:32:22,829 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-10-25 22:32:23,250 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-25 22:32:23,883 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2020-10-25 22:32:24,267 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-10-25 22:32:24,783 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-25 22:32:25,456 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-25 22:32:26,366 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 44 [2020-10-25 22:32:27,214 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 44 [2020-10-25 22:32:27,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:32:27,276 INFO L93 Difference]: Finished difference Result 95 states and 108 transitions. [2020-10-25 22:32:27,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-25 22:32:27,278 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 15 [2020-10-25 22:32:27,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:32:27,280 INFO L225 Difference]: With dead ends: 95 [2020-10-25 22:32:27,280 INFO L226 Difference]: Without dead ends: 91 [2020-10-25 22:32:27,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 995 ImplicationChecksByTransitivity, 28.7s TimeCoverageRelationStatistics Valid=808, Invalid=3352, Unknown=0, NotChecked=0, Total=4160 [2020-10-25 22:32:27,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-25 22:32:27,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 41. [2020-10-25 22:32:27,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-25 22:32:27,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2020-10-25 22:32:27,296 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 15 [2020-10-25 22:32:27,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:32:27,296 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2020-10-25 22:32:27,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-25 22:32:27,297 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2020-10-25 22:32:27,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-25 22:32:27,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:32:27,298 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:32:27,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-25 22:32:27,510 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:32:27,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:32:27,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1695945789, now seen corresponding path program 2 times [2020-10-25 22:32:27,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:32:27,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410866553] [2020-10-25 22:32:27,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-25 22:32:27,568 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-25 22:32:27,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-25 22:32:27,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-25 22:32:27,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:32:27,581 INFO L384 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 7 treesize of output 6 [2020-10-25 22:32:27,582 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-25 22:32:27,585 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-25 22:32:27,586 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-25 22:32:27,586 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:7, output treesize:6 [2020-10-25 22:32:27,602 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:32:27,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-25 22:32:27,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:32:35,770 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-25 22:32:35,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410866553] [2020-10-25 22:32:35,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:32:35,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-25 22:32:35,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370442553] [2020-10-25 22:32:35,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 22:32:35,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:32:35,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 22:32:35,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=36, Unknown=4, NotChecked=0, Total=56 [2020-10-25 22:32:35,775 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand 8 states. [2020-10-25 22:32:37,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:32:37,899 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2020-10-25 22:32:37,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 22:32:37,899 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-10-25 22:32:37,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:32:37,900 INFO L225 Difference]: With dead ends: 41 [2020-10-25 22:32:37,900 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 22:32:37,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=31, Invalid=54, Unknown=5, NotChecked=0, Total=90 [2020-10-25 22:32:37,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 22:32:37,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 22:32:37,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 22:32:37,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 22:32:37,901 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-25 22:32:37,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:32:37,901 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 22:32:37,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 22:32:37,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 22:32:37,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 22:32:38,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-25 22:32:38,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 22:32:38,388 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-10-25 22:32:40,415 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 159 DAG size of output: 46 [2020-10-25 22:32:40,439 INFO L270 CegarLoopResult]: At program point L35-2(lines 25 37) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (bvslt ULTIMATE.start_main_~n~0 (_ bv1073741824 32)) (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32)) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) .cse0) (= (_ bv0 32) |ULTIMATE.start_main_#t~malloc9.offset|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc9.base|)))) [2020-10-25 22:32:40,439 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-10-25 22:32:40,440 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-10-25 22:32:40,440 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-10-25 22:32:40,440 INFO L274 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-25 22:32:40,440 INFO L274 CegarLoopResult]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2020-10-25 22:32:40,440 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 22:32:40,440 INFO L274 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-10-25 22:32:40,440 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 22:32:40,440 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 22:32:40,440 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-10-25 22:32:40,440 INFO L274 CegarLoopResult]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2020-10-25 22:32:40,441 INFO L270 CegarLoopResult]: At program point L45-3(lines 45 47) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (bvslt ULTIMATE.start_main_~n~0 (_ bv1073741824 32)) (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32)) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) .cse0) (= (_ bv0 32) |ULTIMATE.start_main_#t~malloc9.offset|) (or (bvslt (bvadd ULTIMATE.start_main_~x~0 (_ bv1 32)) (bvadd ULTIMATE.start_main_~y~0 (_ bv4294967295 32))) (not (bvslt ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)) (forall ((v_ULTIMATE.start_main_~i~0_14 (_ BitVec 32))) (let ((.cse1 (bvmul ULTIMATE.start_main_~x~0 (_ bv4 32))) (.cse2 (bvmul v_ULTIMATE.start_main_~i~0_14 (_ bv4 32)))) (or (not (bvslt v_ULTIMATE.start_main_~i~0_14 ULTIMATE.start_main_~n~0)) (not (bvsle (_ bv0 32) v_ULTIMATE.start_main_~i~0_14)) (= .cse1 .cse2) (= .cse2 (bvmul ULTIMATE.start_main_~y~0 (_ bv4 32))) (= (bvadd .cse1 (_ bv4 32)) .cse2))))) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc9.base|)))) [2020-10-25 22:32:40,441 INFO L274 CegarLoopResult]: For program point L45-4(lines 45 47) no Hoare annotation was computed. [2020-10-25 22:32:40,441 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-25 22:32:40,441 INFO L274 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-10-25 22:32:40,441 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 22:32:40,441 INFO L274 CegarLoopResult]: For program point L25-2(lines 25 37) no Hoare annotation was computed. [2020-10-25 22:32:40,441 INFO L277 CegarLoopResult]: At program point L50(lines 16 51) the Hoare annotation is: true [2020-10-25 22:32:40,441 INFO L274 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-25 22:32:40,441 INFO L274 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-10-25 22:32:40,442 INFO L274 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed. [2020-10-25 22:32:40,442 INFO L274 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed. [2020-10-25 22:32:40,442 INFO L274 CegarLoopResult]: For program point L10(lines 10 12) no Hoare annotation was computed. [2020-10-25 22:32:40,442 INFO L274 CegarLoopResult]: For program point L10-1(lines 10 12) no Hoare annotation was computed. [2020-10-25 22:32:40,442 INFO L274 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-10-25 22:32:40,450 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-25 22:32:40,456 INFO L168 Benchmark]: Toolchain (without parser) took 70186.80 ms. Allocated memory was 62.9 MB in the beginning and 111.1 MB in the end (delta: 48.2 MB). Free memory was 46.3 MB in the beginning and 75.0 MB in the end (delta: -28.7 MB). Peak memory consumption was 64.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:32:40,456 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 41.9 MB. Free memory is still 22.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:32:40,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.21 ms. Allocated memory is still 62.9 MB. Free memory was 45.7 MB in the beginning and 39.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-25 22:32:40,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.81 ms. Allocated memory is still 62.9 MB. Free memory was 39.0 MB in the beginning and 37.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:32:40,458 INFO L168 Benchmark]: Boogie Preprocessor took 60.57 ms. Allocated memory is still 62.9 MB. Free memory was 37.4 MB in the beginning and 35.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:32:40,459 INFO L168 Benchmark]: RCFGBuilder took 742.91 ms. Allocated memory is still 62.9 MB. Free memory was 35.9 MB in the beginning and 33.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-25 22:32:40,460 INFO L168 Benchmark]: TraceAbstraction took 68966.84 ms. Allocated memory was 62.9 MB in the beginning and 111.1 MB in the end (delta: 48.2 MB). Free memory was 33.1 MB in the beginning and 75.0 MB in the end (delta: -41.9 MB). Peak memory consumption was 52.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:32:40,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 41.9 MB. Free memory is still 22.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.21 ms. Allocated memory is still 62.9 MB. Free memory was 45.7 MB in the beginning and 39.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.81 ms. Allocated memory is still 62.9 MB. Free memory was 39.0 MB in the beginning and 37.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.57 ms. Allocated memory is still 62.9 MB. Free memory was 37.4 MB in the beginning and 35.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 742.91 ms. Allocated memory is still 62.9 MB. Free memory was 35.9 MB in the beginning and 33.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 68966.84 ms. Allocated memory was 62.9 MB in the beginning and 111.1 MB in the end (delta: 48.2 MB). Free memory was 33.1 MB in the beginning and 75.0 MB in the end (delta: -41.9 MB). Peak memory consumption was 52.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...