./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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/AutomizerTermination.xml -i ../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-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(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:31:55,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:31:55,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:31:55,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:31:55,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:31:55,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:31:55,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:31:55,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:31:55,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:31:55,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:31:55,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:31:55,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:31:55,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:31:55,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:31:55,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:31:55,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:31:55,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:31:55,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:31:55,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:31:55,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:31:55,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:31:55,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:31:55,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:31:55,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:31:55,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:31:55,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:31:55,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:31:55,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:31:55,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:31:55,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:31:55,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:31:55,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:31:55,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:31:55,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:31:55,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:31:55,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:31:55,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:31:55,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:31:55,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:31:55,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:31:55,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:31:55,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-16 09:31:55,148 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:31:55,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:31:55,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:31:55,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:31:55,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:31:55,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:31:55,150 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:31:55,150 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 09:31:55,150 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 09:31:55,150 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 09:31:55,150 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 09:31:55,150 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 09:31:55,150 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 09:31:55,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:31:55,151 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 09:31:55,151 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:31:55,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:31:55,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 09:31:55,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:31:55,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 09:31:55,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 09:31:55,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 09:31:55,152 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 09:31:55,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:31:55,152 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 09:31:55,152 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:31:55,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 09:31:55,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:31:55,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:31:55,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:31:55,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:31:55,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:31:55,154 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 09:31:55,154 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7 [2021-12-16 09:31:55,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:31:55,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:31:55,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:31:55,430 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:31:55,430 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:31:55,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2021-12-16 09:31:55,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccd8af77b/bb614bf9df0c4c17b04d77bf8114515c/FLAG4f3440996 [2021-12-16 09:31:55,826 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:31:55,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2021-12-16 09:31:55,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccd8af77b/bb614bf9df0c4c17b04d77bf8114515c/FLAG4f3440996 [2021-12-16 09:31:56,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccd8af77b/bb614bf9df0c4c17b04d77bf8114515c [2021-12-16 09:31:56,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:31:56,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:31:56,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:31:56,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:31:56,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:31:56,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:31:56" (1/1) ... [2021-12-16 09:31:56,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f1c556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56, skipping insertion in model container [2021-12-16 09:31:56,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:31:56" (1/1) ... [2021-12-16 09:31:56,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:31:56,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:31:56,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] [2021-12-16 09:31:56,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:31:56,474 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:31:56,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] [2021-12-16 09:31:56,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:31:56,537 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:31:56,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56 WrapperNode [2021-12-16 09:31:56,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:31:56,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:31:56,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:31:56,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:31:56,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56" (1/1) ... [2021-12-16 09:31:56,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56" (1/1) ... [2021-12-16 09:31:56,588 INFO L137 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 169 [2021-12-16 09:31:56,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:31:56,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:31:56,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:31:56,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:31:56,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56" (1/1) ... [2021-12-16 09:31:56,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56" (1/1) ... [2021-12-16 09:31:56,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56" (1/1) ... [2021-12-16 09:31:56,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56" (1/1) ... [2021-12-16 09:31:56,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56" (1/1) ... [2021-12-16 09:31:56,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56" (1/1) ... [2021-12-16 09:31:56,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56" (1/1) ... [2021-12-16 09:31:56,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:31:56,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:31:56,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:31:56,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:31:56,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56" (1/1) ... [2021-12-16 09:31:56,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:56,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:56,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:56,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-16 09:31:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 09:31:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 09:31:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 09:31:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 09:31:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:31:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:31:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 09:31:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 09:31:56,812 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:31:56,814 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:31:57,040 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:31:57,046 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:31:57,047 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-12-16 09:31:57,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:31:57 BoogieIcfgContainer [2021-12-16 09:31:57,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:31:57,049 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 09:31:57,049 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 09:31:57,052 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 09:31:57,052 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:31:57,053 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 09:31:56" (1/3) ... [2021-12-16 09:31:57,054 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f298fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:31:57, skipping insertion in model container [2021-12-16 09:31:57,054 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:31:57,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:56" (2/3) ... [2021-12-16 09:31:57,054 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f298fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:31:57, skipping insertion in model container [2021-12-16 09:31:57,054 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:31:57,055 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:31:57" (3/3) ... [2021-12-16 09:31:57,056 INFO L388 chiAutomizerObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2021-12-16 09:31:57,089 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 09:31:57,089 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 09:31:57,089 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 09:31:57,089 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 09:31:57,089 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 09:31:57,089 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 09:31:57,089 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 09:31:57,089 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 09:31:57,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 45 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 44 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:57,114 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 35 [2021-12-16 09:31:57,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:57,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:57,119 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-16 09:31:57,119 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:31:57,119 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 09:31:57,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 45 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 44 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:57,126 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 35 [2021-12-16 09:31:57,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:57,126 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:57,126 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-16 09:31:57,126 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:31:57,131 INFO L791 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 45#L33-3true [2021-12-16 09:31:57,131 INFO L793 eck$LassoCheckResult]: Loop: 45#L33-3true assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 35#L33-2true main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 45#L33-3true [2021-12-16 09:31:57,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:57,136 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-16 09:31:57,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:57,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626620470] [2021-12-16 09:31:57,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:57,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:57,213 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:57,237 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:57,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:57,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-12-16 09:31:57,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:57,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384901840] [2021-12-16 09:31:57,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:57,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:57,264 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:57,275 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:57,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:57,280 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-12-16 09:31:57,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:57,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711114689] [2021-12-16 09:31:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:57,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:57,317 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:57,340 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:57,624 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:31:57,625 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:31:57,625 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:31:57,625 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:31:57,626 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:31:57,626 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:57,626 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:31:57,626 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:31:57,627 INFO L133 ssoRankerPreferences]: Filename of dumped script: data_structures_set_multi_proc_trivial_ground.i_Iteration1_Lasso [2021-12-16 09:31:57,627 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:31:57,627 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:31:57,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:57,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:58,112 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:31:58,116 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:31:58,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:58,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:58,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:58,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-16 09:31:58,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:31:58,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:58,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:58,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:58,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:58,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:58,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:58,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:58,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:58,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-16 09:31:58,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:58,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:58,182 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:58,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-16 09:31:58,185 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:31:58,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:58,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:58,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:58,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:58,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:58,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:58,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:58,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:58,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:58,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:58,235 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:58,242 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:31:58,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:58,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:58,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:58,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:58,253 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:58,253 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:58,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-16 09:31:58,271 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:58,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:58,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:58,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:58,292 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:58,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-16 09:31:58,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:31:58,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:58,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:58,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:58,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:58,303 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:58,303 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:58,311 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:58,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:58,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:58,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:58,330 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:58,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-16 09:31:58,332 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:31:58,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:58,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:58,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:58,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:58,360 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:58,360 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:58,376 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:31:58,440 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-16 09:31:58,440 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-12-16 09:31:58,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:58,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:58,444 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:58,446 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:31:58,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-16 09:31:58,464 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:31:58,465 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:31:58,465 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, v_rep(select #length ULTIMATE.start_main_~#set~0#1.base)_1) = -8*ULTIMATE.start_main_~x~0#1 + 199999*v_rep(select #length ULTIMATE.start_main_~#set~0#1.base)_1 Supporting invariants [] [2021-12-16 09:31:58,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:58,516 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2021-12-16 09:31:58,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:58,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:31:58,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:31:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:58,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 09:31:58,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:31:58,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:58,726 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-16 09:31:58,728 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 45 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 44 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:58,764 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 45 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 44 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 89 states and 139 transitions. Complement of second has 8 states. [2021-12-16 09:31:58,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-16 09:31:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:58,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 69 transitions. [2021-12-16 09:31:58,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 69 transitions. Stem has 2 letters. Loop has 2 letters. [2021-12-16 09:31:58,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:58,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 69 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-16 09:31:58,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:58,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 69 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-16 09:31:58,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:58,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 139 transitions. [2021-12-16 09:31:58,777 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 33 [2021-12-16 09:31:58,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 42 states and 65 transitions. [2021-12-16 09:31:58,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-12-16 09:31:58,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-12-16 09:31:58,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 65 transitions. [2021-12-16 09:31:58,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:31:58,782 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 65 transitions. [2021-12-16 09:31:58,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 65 transitions. [2021-12-16 09:31:58,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-12-16 09:31:58,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5476190476190477) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:58,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 65 transitions. [2021-12-16 09:31:58,802 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 65 transitions. [2021-12-16 09:31:58,802 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 65 transitions. [2021-12-16 09:31:58,802 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 09:31:58,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 65 transitions. [2021-12-16 09:31:58,803 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 33 [2021-12-16 09:31:58,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:58,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:58,804 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-16 09:31:58,804 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-16 09:31:58,804 INFO L791 eck$LassoCheckResult]: Stem: 230#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 206#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 207#L33-3 assume !(main_~x~0#1 < 100000); 200#L33-4 main_~x~0#1 := 0; 201#L39-3 [2021-12-16 09:31:58,804 INFO L793 eck$LassoCheckResult]: Loop: 201#L39-3 assume !!(main_~x~0#1 < main_~n~0#1);main_~y~0#1 := 1 + main_~x~0#1; 214#L40-3 assume !true; 216#L39-2 main_#t~post5#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 201#L39-3 [2021-12-16 09:31:58,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:58,805 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-12-16 09:31:58,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:58,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220409992] [2021-12-16 09:31:58,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:58,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:58,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:31:58,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220409992] [2021-12-16 09:31:58,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220409992] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:31:58,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:31:58,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 09:31:58,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156478906] [2021-12-16 09:31:58,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:31:58,841 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-16 09:31:58,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:58,842 INFO L85 PathProgramCache]: Analyzing trace with hash 54297, now seen corresponding path program 1 times [2021-12-16 09:31:58,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:58,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635350623] [2021-12-16 09:31:58,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:58,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:58,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:58,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:31:58,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635350623] [2021-12-16 09:31:58,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635350623] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:31:58,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:31:58,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 09:31:58,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674509896] [2021-12-16 09:31:58,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:31:58,857 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-16 09:31:58,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:31:58,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 09:31:58,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 09:31:58,861 INFO L87 Difference]: Start difference. First operand 42 states and 65 transitions. cyclomatic complexity: 28 Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:58,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:31:58,866 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2021-12-16 09:31:58,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 09:31:58,867 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 54 transitions. [2021-12-16 09:31:58,868 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 30 [2021-12-16 09:31:58,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 39 states and 51 transitions. [2021-12-16 09:31:58,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-12-16 09:31:58,870 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-12-16 09:31:58,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 51 transitions. [2021-12-16 09:31:58,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:31:58,870 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-12-16 09:31:58,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 51 transitions. [2021-12-16 09:31:58,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-12-16 09:31:58,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 38 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:58,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2021-12-16 09:31:58,873 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-12-16 09:31:58,874 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-12-16 09:31:58,874 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-16 09:31:58,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 51 transitions. [2021-12-16 09:31:58,874 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 30 [2021-12-16 09:31:58,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:58,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:58,876 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-16 09:31:58,876 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-16 09:31:58,876 INFO L791 eck$LassoCheckResult]: Stem: 317#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 294#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 295#L33-3 assume !(main_~x~0#1 < 100000); 290#L33-4 main_~x~0#1 := 0; 291#L39-3 [2021-12-16 09:31:58,876 INFO L793 eck$LassoCheckResult]: Loop: 291#L39-3 assume !!(main_~x~0#1 < main_~n~0#1);main_~y~0#1 := 1 + main_~x~0#1; 300#L40-3 assume !(main_~y~0#1 < main_~n~0#1); 302#L39-2 main_#t~post5#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 291#L39-3 [2021-12-16 09:31:58,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:58,877 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 2 times [2021-12-16 09:31:58,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:58,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394909233] [2021-12-16 09:31:58,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:58,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:58,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:58,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:31:58,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394909233] [2021-12-16 09:31:58,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394909233] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:31:58,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:31:58,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 09:31:58,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421482647] [2021-12-16 09:31:58,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:31:58,895 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-16 09:31:58,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:58,896 INFO L85 PathProgramCache]: Analyzing trace with hash 53832, now seen corresponding path program 1 times [2021-12-16 09:31:58,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:58,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91279679] [2021-12-16 09:31:58,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:58,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:58,900 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:58,905 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:58,923 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:31:58,923 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:31:58,923 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:31:58,923 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:31:58,924 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-16 09:31:58,924 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:58,924 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:31:58,924 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:31:58,924 INFO L133 ssoRankerPreferences]: Filename of dumped script: data_structures_set_multi_proc_trivial_ground.i_Iteration3_Loop [2021-12-16 09:31:58,924 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:31:58,924 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:31:58,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:58,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:58,957 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:31:58,958 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-16 09:31:58,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:58,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:58,961 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:58,968 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 09:31:58,968 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 09:31:58,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-16 09:31:58,990 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 09:31:58,990 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 09:31:59,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:59,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:59,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:59,016 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:59,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 09:31:59,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 09:31:59,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-16 09:31:59,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:59,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:59,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:59,069 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:59,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-16 09:31:59,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-16 09:31:59,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 09:31:59,300 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-16 09:31:59,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-16 09:31:59,304 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:31:59,304 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:31:59,304 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:31:59,304 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:31:59,304 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:31:59,304 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:59,304 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:31:59,304 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:31:59,304 INFO L133 ssoRankerPreferences]: Filename of dumped script: data_structures_set_multi_proc_trivial_ground.i_Iteration3_Loop [2021-12-16 09:31:59,305 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:31:59,305 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:31:59,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:59,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:59,348 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:31:59,348 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:31:59,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:59,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:59,349 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:59,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:31:59,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-16 09:31:59,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:59,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:59,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:59,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:59,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:59,377 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:59,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:59,381 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:59,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-16 09:31:59,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:59,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:59,398 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:59,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-16 09:31:59,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:31:59,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:59,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:59,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:59,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:59,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:59,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:59,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:59,415 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:31:59,435 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-16 09:31:59,436 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-16 09:31:59,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:59,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:59,444 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:31:59,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-16 09:31:59,446 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:31:59,447 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-16 09:31:59,447 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:31:59,447 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2021-12-16 09:31:59,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:59,472 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-16 09:31:59,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:59,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:31:59,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:31:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:59,512 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 09:31:59,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:31:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:59,534 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-16 09:31:59,534 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 51 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:59,570 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 51 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 70 states and 94 transitions. Complement of second has 7 states. [2021-12-16 09:31:59,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-16 09:31:59,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:59,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2021-12-16 09:31:59,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 4 letters. Loop has 3 letters. [2021-12-16 09:31:59,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:59,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-16 09:31:59,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:59,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 4 letters. Loop has 6 letters. [2021-12-16 09:31:59,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:59,573 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 94 transitions. [2021-12-16 09:31:59,574 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 31 [2021-12-16 09:31:59,575 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 55 states and 74 transitions. [2021-12-16 09:31:59,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2021-12-16 09:31:59,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2021-12-16 09:31:59,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 74 transitions. [2021-12-16 09:31:59,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:31:59,576 INFO L681 BuchiCegarLoop]: Abstraction has 55 states and 74 transitions. [2021-12-16 09:31:59,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 74 transitions. [2021-12-16 09:31:59,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 44. [2021-12-16 09:31:59,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 43 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:59,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2021-12-16 09:31:59,579 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2021-12-16 09:31:59,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:31:59,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 09:31:59,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 09:31:59,580 INFO L87 Difference]: Start difference. First operand 44 states and 59 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:59,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:31:59,624 INFO L93 Difference]: Finished difference Result 81 states and 104 transitions. [2021-12-16 09:31:59,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 09:31:59,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 104 transitions. [2021-12-16 09:31:59,626 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 54 [2021-12-16 09:31:59,627 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 81 states and 104 transitions. [2021-12-16 09:31:59,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2021-12-16 09:31:59,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2021-12-16 09:31:59,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 104 transitions. [2021-12-16 09:31:59,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:31:59,628 INFO L681 BuchiCegarLoop]: Abstraction has 81 states and 104 transitions. [2021-12-16 09:31:59,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 104 transitions. [2021-12-16 09:31:59,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 44. [2021-12-16 09:31:59,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:59,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2021-12-16 09:31:59,631 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 58 transitions. [2021-12-16 09:31:59,631 INFO L587 BuchiCegarLoop]: Abstraction has 44 states and 58 transitions. [2021-12-16 09:31:59,631 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-16 09:31:59,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 58 transitions. [2021-12-16 09:31:59,632 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 28 [2021-12-16 09:31:59,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:59,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:59,633 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:31:59,633 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-16 09:31:59,633 INFO L791 eck$LassoCheckResult]: Stem: 600#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 574#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 575#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 603#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 604#L33-3 assume !(main_~x~0#1 < 100000); 570#L33-4 main_~x~0#1 := 0; 571#L39-3 assume !!(main_~x~0#1 < main_~n~0#1);main_~y~0#1 := 1 + main_~x~0#1; 580#L40-3 [2021-12-16 09:31:59,633 INFO L793 eck$LassoCheckResult]: Loop: 580#L40-3 assume !!(main_~y~0#1 < main_~n~0#1);call main_#t~mem7#1 := read~int(main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);call main_#t~mem8#1 := read~int(main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~y~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem7#1 != main_#t~mem8#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 581#L13 assume !(0 == __VERIFIER_assert_~cond#1); 566#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem7#1;havoc main_#t~mem8#1; 567#L40-2 main_#t~post6#1 := main_~y~0#1;main_~y~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 580#L40-3 [2021-12-16 09:31:59,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:59,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1809669547, now seen corresponding path program 1 times [2021-12-16 09:31:59,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:59,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289878622] [2021-12-16 09:31:59,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:59,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:59,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:59,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:31:59,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289878622] [2021-12-16 09:31:59,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289878622] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:31:59,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465898556] [2021-12-16 09:31:59,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:59,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:31:59,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:59,680 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:31:59,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-16 09:31:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:59,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 09:31:59,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:31:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:59,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:31:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:59,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465898556] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:31:59,778 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:31:59,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-16 09:31:59,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108416827] [2021-12-16 09:31:59,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:31:59,779 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-16 09:31:59,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:59,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1915626, now seen corresponding path program 1 times [2021-12-16 09:31:59,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:59,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42604765] [2021-12-16 09:31:59,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:59,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:59,791 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:59,802 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:59,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:59,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:31:59,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 09:31:59,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-16 09:31:59,914 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. cyclomatic complexity: 20 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:32:00,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:32:00,029 INFO L93 Difference]: Finished difference Result 197 states and 253 transitions. [2021-12-16 09:32:00,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:32:00,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 197 states and 253 transitions. [2021-12-16 09:32:00,032 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 132 [2021-12-16 09:32:00,034 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 197 states to 197 states and 253 transitions. [2021-12-16 09:32:00,034 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2021-12-16 09:32:00,035 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2021-12-16 09:32:00,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 197 states and 253 transitions. [2021-12-16 09:32:00,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:32:00,035 INFO L681 BuchiCegarLoop]: Abstraction has 197 states and 253 transitions. [2021-12-16 09:32:00,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states and 253 transitions. [2021-12-16 09:32:00,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 50. [2021-12-16 09:32:00,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.28) internal successors, (64), 49 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:32:00,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 64 transitions. [2021-12-16 09:32:00,040 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 64 transitions. [2021-12-16 09:32:00,040 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 64 transitions. [2021-12-16 09:32:00,040 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-16 09:32:00,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 64 transitions. [2021-12-16 09:32:00,040 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 28 [2021-12-16 09:32:00,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:32:00,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:32:00,041 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1, 1] [2021-12-16 09:32:00,041 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-16 09:32:00,041 INFO L791 eck$LassoCheckResult]: Stem: 887#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 859#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 860#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 893#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 894#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 890#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 891#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 898#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 897#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 896#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 895#L33-3 assume !(main_~x~0#1 < 100000); 853#L33-4 main_~x~0#1 := 0; 854#L39-3 assume !!(main_~x~0#1 < main_~n~0#1);main_~y~0#1 := 1 + main_~x~0#1; 867#L40-3 [2021-12-16 09:32:00,041 INFO L793 eck$LassoCheckResult]: Loop: 867#L40-3 assume !!(main_~y~0#1 < main_~n~0#1);call main_#t~mem7#1 := read~int(main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);call main_#t~mem8#1 := read~int(main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~y~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem7#1 != main_#t~mem8#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 868#L13 assume !(0 == __VERIFIER_assert_~cond#1); 855#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem7#1;havoc main_#t~mem8#1; 856#L40-2 main_#t~post6#1 := main_~y~0#1;main_~y~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 867#L40-3 [2021-12-16 09:32:00,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:32:00,042 INFO L85 PathProgramCache]: Analyzing trace with hash 82232677, now seen corresponding path program 2 times [2021-12-16 09:32:00,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:32:00,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372047858] [2021-12-16 09:32:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:32:00,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:32:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:32:00,080 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-16 09:32:00,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:32:00,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372047858] [2021-12-16 09:32:00,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372047858] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:32:00,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:32:00,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 09:32:00,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890985801] [2021-12-16 09:32:00,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:32:00,081 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-16 09:32:00,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:32:00,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1915626, now seen corresponding path program 2 times [2021-12-16 09:32:00,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:32:00,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693852951] [2021-12-16 09:32:00,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:32:00,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:32:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:32:00,087 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:32:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:32:00,099 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:32:00,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:32:00,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 09:32:00,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-16 09:32:00,171 INFO L87 Difference]: Start difference. First operand 50 states and 64 transitions. cyclomatic complexity: 20 Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:32:00,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:32:00,201 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2021-12-16 09:32:00,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 09:32:00,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 65 transitions. [2021-12-16 09:32:00,204 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 34 [2021-12-16 09:32:00,205 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 51 states and 63 transitions. [2021-12-16 09:32:00,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2021-12-16 09:32:00,206 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2021-12-16 09:32:00,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 63 transitions. [2021-12-16 09:32:00,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:32:00,206 INFO L681 BuchiCegarLoop]: Abstraction has 51 states and 63 transitions. [2021-12-16 09:32:00,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 63 transitions. [2021-12-16 09:32:00,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2021-12-16 09:32:00,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.24) internal successors, (62), 49 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:32:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2021-12-16 09:32:00,217 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 62 transitions. [2021-12-16 09:32:00,218 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 62 transitions. [2021-12-16 09:32:00,218 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-16 09:32:00,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 62 transitions. [2021-12-16 09:32:00,218 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 34 [2021-12-16 09:32:00,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:32:00,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:32:00,219 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1, 1, 1] [2021-12-16 09:32:00,219 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:32:00,219 INFO L791 eck$LassoCheckResult]: Stem: 987#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 964#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 965#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 990#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 991#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 995#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1001#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 1000#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 999#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 997#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 996#L33-3 assume !(main_~x~0#1 < 100000); 962#L33-4 main_~x~0#1 := 0; 963#L39-3 assume !(main_~x~0#1 < main_~n~0#1); 979#L39-4 call main_~#values~0#1.base, main_~#values~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~v~0#1;main_~v~0#1 := 0; 980#L47-3 [2021-12-16 09:32:00,219 INFO L793 eck$LassoCheckResult]: Loop: 980#L47-3 assume !!(main_~v~0#1 < 100000);call write~int(main_#t~nondet10#1, main_~#values~0#1.base, main_~#values~0#1.offset + 4 * main_~v~0#1, 4);havoc main_#t~nondet10#1; 981#L47-2 main_#t~post9#1 := main_~v~0#1;main_~v~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 980#L47-3 [2021-12-16 09:32:00,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:32:00,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1745754320, now seen corresponding path program 1 times [2021-12-16 09:32:00,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:32:00,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701037327] [2021-12-16 09:32:00,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:32:00,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:32:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:32:00,298 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:00,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:32:00,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701037327] [2021-12-16 09:32:00,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701037327] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:32:00,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840505876] [2021-12-16 09:32:00,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:32:00,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:32:00,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:32:00,300 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:32:00,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-16 09:32:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:32:00,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 09:32:00,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:32:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:00,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:32:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:00,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840505876] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:32:00,456 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:32:00,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2021-12-16 09:32:00,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215919350] [2021-12-16 09:32:00,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:32:00,457 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-16 09:32:00,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:32:00,457 INFO L85 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 1 times [2021-12-16 09:32:00,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:32:00,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461223939] [2021-12-16 09:32:00,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:32:00,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:32:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:32:00,462 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:32:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:32:00,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:32:00,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:32:00,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 09:32:00,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-12-16 09:32:00,494 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. cyclomatic complexity: 17 Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:32:00,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:32:00,709 INFO L93 Difference]: Finished difference Result 292 states and 374 transitions. [2021-12-16 09:32:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 09:32:00,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 292 states and 374 transitions. [2021-12-16 09:32:00,713 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 234 [2021-12-16 09:32:00,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 292 states to 292 states and 374 transitions. [2021-12-16 09:32:00,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 272 [2021-12-16 09:32:00,715 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 272 [2021-12-16 09:32:00,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 292 states and 374 transitions. [2021-12-16 09:32:00,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:32:00,716 INFO L681 BuchiCegarLoop]: Abstraction has 292 states and 374 transitions. [2021-12-16 09:32:00,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states and 374 transitions. [2021-12-16 09:32:00,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 62. [2021-12-16 09:32:00,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 61 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:32:00,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 74 transitions. [2021-12-16 09:32:00,721 INFO L704 BuchiCegarLoop]: Abstraction has 62 states and 74 transitions. [2021-12-16 09:32:00,721 INFO L587 BuchiCegarLoop]: Abstraction has 62 states and 74 transitions. [2021-12-16 09:32:00,721 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-16 09:32:00,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 74 transitions. [2021-12-16 09:32:00,721 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 34 [2021-12-16 09:32:00,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:32:00,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:32:00,722 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1, 1] [2021-12-16 09:32:00,722 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:32:00,723 INFO L791 eck$LassoCheckResult]: Stem: 1423#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 1400#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 1401#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 1431#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1432#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 1426#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1427#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 1448#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1447#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 1446#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1445#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 1444#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1443#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 1442#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1441#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 1440#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1439#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 1438#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1437#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 1436#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1435#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 1434#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1433#L33-3 assume !(main_~x~0#1 < 100000); 1398#L33-4 main_~x~0#1 := 0; 1399#L39-3 assume !(main_~x~0#1 < main_~n~0#1); 1415#L39-4 call main_~#values~0#1.base, main_~#values~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~v~0#1;main_~v~0#1 := 0; 1416#L47-3 [2021-12-16 09:32:00,723 INFO L793 eck$LassoCheckResult]: Loop: 1416#L47-3 assume !!(main_~v~0#1 < 100000);call write~int(main_#t~nondet10#1, main_~#values~0#1.base, main_~#values~0#1.offset + 4 * main_~v~0#1, 4);havoc main_#t~nondet10#1; 1417#L47-2 main_#t~post9#1 := main_~v~0#1;main_~v~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 1416#L47-3 [2021-12-16 09:32:00,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:32:00,723 INFO L85 PathProgramCache]: Analyzing trace with hash -95702852, now seen corresponding path program 2 times [2021-12-16 09:32:00,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:32:00,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221857056] [2021-12-16 09:32:00,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:32:00,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:32:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:32:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:00,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:32:00,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221857056] [2021-12-16 09:32:00,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221857056] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:32:00,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176163367] [2021-12-16 09:32:00,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 09:32:00,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:32:00,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:32:00,860 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:32:00,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-16 09:32:00,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 09:32:00,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:32:00,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-16 09:32:00,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:32:00,989 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:00,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:32:01,183 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:01,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176163367] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:32:01,184 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:32:01,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2021-12-16 09:32:01,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450438566] [2021-12-16 09:32:01,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:32:01,185 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-16 09:32:01,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:32:01,185 INFO L85 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 2 times [2021-12-16 09:32:01,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:32:01,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97164284] [2021-12-16 09:32:01,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:32:01,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:32:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:32:01,190 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:32:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:32:01,192 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:32:01,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:32:01,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-16 09:32:01,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-12-16 09:32:01,225 INFO L87 Difference]: Start difference. First operand 62 states and 74 transitions. cyclomatic complexity: 17 Second operand has 25 states, 25 states have (on average 2.04) internal successors, (51), 25 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:32:01,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:32:01,680 INFO L93 Difference]: Finished difference Result 592 states and 758 transitions. [2021-12-16 09:32:01,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 09:32:01,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 592 states and 758 transitions. [2021-12-16 09:32:01,685 INFO L131 ngComponentsAnalysis]: Automaton has 26 accepting balls. 474 [2021-12-16 09:32:01,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 592 states to 592 states and 758 transitions. [2021-12-16 09:32:01,688 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 548 [2021-12-16 09:32:01,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 548 [2021-12-16 09:32:01,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 592 states and 758 transitions. [2021-12-16 09:32:01,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:32:01,690 INFO L681 BuchiCegarLoop]: Abstraction has 592 states and 758 transitions. [2021-12-16 09:32:01,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states and 758 transitions. [2021-12-16 09:32:01,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 86. [2021-12-16 09:32:01,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 86 states have (on average 1.1395348837209303) internal successors, (98), 85 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:32:01,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2021-12-16 09:32:01,695 INFO L704 BuchiCegarLoop]: Abstraction has 86 states and 98 transitions. [2021-12-16 09:32:01,695 INFO L587 BuchiCegarLoop]: Abstraction has 86 states and 98 transitions. [2021-12-16 09:32:01,695 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-16 09:32:01,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 98 transitions. [2021-12-16 09:32:01,696 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 34 [2021-12-16 09:32:01,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:32:01,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:32:01,697 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [22, 22, 1, 1, 1, 1, 1, 1] [2021-12-16 09:32:01,697 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:32:01,697 INFO L791 eck$LassoCheckResult]: Stem: 2258#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 2234#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 2235#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2268#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2269#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2263#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2264#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2309#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2308#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2307#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2306#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2305#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2304#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2303#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2302#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2301#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2300#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2299#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2298#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2297#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2296#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2295#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2294#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2293#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2292#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2291#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2290#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2289#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2288#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2287#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2286#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2285#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2284#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2283#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2282#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2281#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2280#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2279#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2278#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2277#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2276#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2275#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2274#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2273#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2272#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 2271#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 2270#L33-3 assume !(main_~x~0#1 < 100000); 2230#L33-4 main_~x~0#1 := 0; 2231#L39-3 assume !(main_~x~0#1 < main_~n~0#1); 2250#L39-4 call main_~#values~0#1.base, main_~#values~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~v~0#1;main_~v~0#1 := 0; 2251#L47-3 [2021-12-16 09:32:01,698 INFO L793 eck$LassoCheckResult]: Loop: 2251#L47-3 assume !!(main_~v~0#1 < 100000);call write~int(main_#t~nondet10#1, main_~#values~0#1.base, main_~#values~0#1.offset + 4 * main_~v~0#1, 4);havoc main_#t~nondet10#1; 2252#L47-2 main_#t~post9#1 := main_~v~0#1;main_~v~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 2251#L47-3 [2021-12-16 09:32:01,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:32:01,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1293970900, now seen corresponding path program 3 times [2021-12-16 09:32:01,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:32:01,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968688807] [2021-12-16 09:32:01,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:32:01,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:32:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:32:02,009 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:02,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:32:02,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968688807] [2021-12-16 09:32:02,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968688807] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:32:02,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524285786] [2021-12-16 09:32:02,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 09:32:02,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:32:02,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:32:02,015 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:32:02,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-16 09:32:02,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-12-16 09:32:02,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:32:02,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-16 09:32:02,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:32:02,722 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:02,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:32:03,425 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:03,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524285786] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:32:03,425 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:32:03,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2021-12-16 09:32:03,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36900363] [2021-12-16 09:32:03,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:32:03,427 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-16 09:32:03,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:32:03,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 3 times [2021-12-16 09:32:03,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:32:03,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650741323] [2021-12-16 09:32:03,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:32:03,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:32:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:32:03,433 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:32:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:32:03,438 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:32:03,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:32:03,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-12-16 09:32:03,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-12-16 09:32:03,476 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. cyclomatic complexity: 17 Second operand has 49 states, 49 states have (on average 2.020408163265306) internal successors, (99), 49 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:32:04,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:32:04,935 INFO L93 Difference]: Finished difference Result 1192 states and 1526 transitions. [2021-12-16 09:32:04,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-16 09:32:04,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1192 states and 1526 transitions. [2021-12-16 09:32:04,943 INFO L131 ngComponentsAnalysis]: Automaton has 50 accepting balls. 954 [2021-12-16 09:32:04,948 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1192 states to 1192 states and 1526 transitions. [2021-12-16 09:32:04,949 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1100 [2021-12-16 09:32:04,950 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1100 [2021-12-16 09:32:04,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1192 states and 1526 transitions. [2021-12-16 09:32:04,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:32:04,951 INFO L681 BuchiCegarLoop]: Abstraction has 1192 states and 1526 transitions. [2021-12-16 09:32:04,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states and 1526 transitions. [2021-12-16 09:32:04,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 134. [2021-12-16 09:32:04,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 134 states have (on average 1.0895522388059702) internal successors, (146), 133 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:32:04,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 146 transitions. [2021-12-16 09:32:04,957 INFO L704 BuchiCegarLoop]: Abstraction has 134 states and 146 transitions. [2021-12-16 09:32:04,957 INFO L587 BuchiCegarLoop]: Abstraction has 134 states and 146 transitions. [2021-12-16 09:32:04,958 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-16 09:32:04,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 146 transitions. [2021-12-16 09:32:04,958 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 34 [2021-12-16 09:32:04,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:32:04,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:32:04,961 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [46, 46, 1, 1, 1, 1, 1, 1] [2021-12-16 09:32:04,961 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:32:04,961 INFO L791 eck$LassoCheckResult]: Stem: 3879#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 3856#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 3857#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3887#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3888#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3882#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3883#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3976#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3975#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3974#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3973#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3972#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3971#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3970#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3969#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3968#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3967#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3966#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3965#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3964#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3963#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3962#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3961#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3960#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3959#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3958#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3957#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3956#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3955#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3954#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3953#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3952#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3951#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3950#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3949#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3948#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3947#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3946#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3945#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3944#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3943#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3942#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3941#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3940#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3939#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3938#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3937#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3936#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3935#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3934#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3933#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3932#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3931#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3930#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3929#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3928#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3927#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3926#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3925#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3924#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3923#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3922#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3921#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3920#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3919#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3918#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3917#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3916#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3915#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3914#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3913#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3912#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3911#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3910#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3909#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3908#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3907#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3906#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3905#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3904#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3903#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3902#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3901#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3900#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3899#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3898#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3897#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3896#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3895#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3894#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3893#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3892#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3891#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 3890#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 3889#L33-3 assume !(main_~x~0#1 < 100000); 3854#L33-4 main_~x~0#1 := 0; 3855#L39-3 assume !(main_~x~0#1 < main_~n~0#1); 3871#L39-4 call main_~#values~0#1.base, main_~#values~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~v~0#1;main_~v~0#1 := 0; 3872#L47-3 [2021-12-16 09:32:04,962 INFO L793 eck$LassoCheckResult]: Loop: 3872#L47-3 assume !!(main_~v~0#1 < 100000);call write~int(main_#t~nondet10#1, main_~#values~0#1.base, main_~#values~0#1.offset + 4 * main_~v~0#1, 4);havoc main_#t~nondet10#1; 3873#L47-2 main_#t~post9#1 := main_~v~0#1;main_~v~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 3872#L47-3 [2021-12-16 09:32:04,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:32:04,962 INFO L85 PathProgramCache]: Analyzing trace with hash -675115004, now seen corresponding path program 4 times [2021-12-16 09:32:04,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:32:04,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85606111] [2021-12-16 09:32:04,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:32:04,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:32:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:32:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:05,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:32:05,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85606111] [2021-12-16 09:32:05,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85606111] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:32:05,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393509726] [2021-12-16 09:32:05,949 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-16 09:32:05,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:32:05,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:32:05,952 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:32:05,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-16 09:32:06,092 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-16 09:32:06,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:32:06,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-16 09:32:06,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:32:06,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:06,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:32:08,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:08,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393509726] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:32:08,706 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:32:08,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2021-12-16 09:32:08,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105396987] [2021-12-16 09:32:08,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:32:08,708 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-16 09:32:08,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:32:08,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 4 times [2021-12-16 09:32:08,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:32:08,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506699130] [2021-12-16 09:32:08,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:32:08,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:32:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:32:08,720 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:32:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:32:08,724 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:32:08,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:32:08,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-12-16 09:32:08,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2021-12-16 09:32:08,761 INFO L87 Difference]: Start difference. First operand 134 states and 146 transitions. cyclomatic complexity: 17 Second operand has 97 states, 97 states have (on average 2.0103092783505154) internal successors, (195), 97 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:32:17,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:32:17,023 INFO L93 Difference]: Finished difference Result 2392 states and 3062 transitions. [2021-12-16 09:32:17,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-16 09:32:17,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2392 states and 3062 transitions. [2021-12-16 09:32:17,035 INFO L131 ngComponentsAnalysis]: Automaton has 98 accepting balls. 1914 [2021-12-16 09:32:17,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2392 states to 2392 states and 3062 transitions. [2021-12-16 09:32:17,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2204 [2021-12-16 09:32:17,047 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2204 [2021-12-16 09:32:17,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2392 states and 3062 transitions. [2021-12-16 09:32:17,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:32:17,049 INFO L681 BuchiCegarLoop]: Abstraction has 2392 states and 3062 transitions. [2021-12-16 09:32:17,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states and 3062 transitions. [2021-12-16 09:32:17,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 230. [2021-12-16 09:32:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 230 states have (on average 1.0521739130434782) internal successors, (242), 229 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:32:17,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 242 transitions. [2021-12-16 09:32:17,060 INFO L704 BuchiCegarLoop]: Abstraction has 230 states and 242 transitions. [2021-12-16 09:32:17,060 INFO L587 BuchiCegarLoop]: Abstraction has 230 states and 242 transitions. [2021-12-16 09:32:17,060 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-12-16 09:32:17,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 230 states and 242 transitions. [2021-12-16 09:32:17,061 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 34 [2021-12-16 09:32:17,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:32:17,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:32:17,063 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [94, 94, 1, 1, 1, 1, 1, 1] [2021-12-16 09:32:17,063 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:32:17,064 INFO L791 eck$LassoCheckResult]: Stem: 7087#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 7064#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 7065#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7095#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7096#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7090#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7091#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7280#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7279#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7278#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7277#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7276#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7275#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7274#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7273#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7272#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7271#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7270#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7269#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7268#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7267#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7266#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7265#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7264#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7263#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7262#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7261#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7260#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7259#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7258#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7257#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7256#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7255#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7254#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7253#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7252#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7251#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7250#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7249#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7248#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7247#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7246#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7245#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7244#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7243#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7242#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7241#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7240#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7239#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7238#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7237#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7236#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7235#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7234#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7233#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7232#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7231#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7230#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7229#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7228#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7227#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7226#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7225#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7224#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7223#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7222#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7221#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7220#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7219#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7218#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7217#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7216#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7215#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7214#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7213#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7212#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7211#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7210#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7209#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7208#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7207#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7206#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7205#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7204#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7203#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7202#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7201#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7200#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7199#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7198#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7197#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7196#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7195#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7194#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7193#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7192#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7191#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7190#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7189#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7188#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7187#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7186#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7185#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7184#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7183#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7182#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7181#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7180#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7179#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7178#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7177#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7176#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7175#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7174#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7173#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7172#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7171#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7170#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7169#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7168#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7167#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7166#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7165#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7164#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7163#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7162#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7161#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7160#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7159#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7158#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7157#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7156#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7155#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7154#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7153#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7152#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7151#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7150#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7149#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7148#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7147#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7146#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7145#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7144#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7143#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7142#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7141#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7140#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7139#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7138#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7137#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7136#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7135#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7134#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7133#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7132#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7131#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7130#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7129#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7128#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7127#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7126#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7125#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7124#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7123#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7122#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7121#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7120#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7119#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7118#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7117#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7116#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7115#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7114#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7113#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7112#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7111#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7110#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7109#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7108#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7107#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7106#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7105#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7104#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7103#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7102#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7101#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7100#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7099#L33-3 assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 7098#L33-2 main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7097#L33-3 assume !(main_~x~0#1 < 100000); 7062#L33-4 main_~x~0#1 := 0; 7063#L39-3 assume !(main_~x~0#1 < main_~n~0#1); 7079#L39-4 call main_~#values~0#1.base, main_~#values~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~v~0#1;main_~v~0#1 := 0; 7080#L47-3 [2021-12-16 09:32:17,064 INFO L793 eck$LassoCheckResult]: Loop: 7080#L47-3 assume !!(main_~v~0#1 < 100000);call write~int(main_#t~nondet10#1, main_~#values~0#1.base, main_~#values~0#1.offset + 4 * main_~v~0#1, 4);havoc main_#t~nondet10#1; 7081#L47-2 main_#t~post9#1 := main_~v~0#1;main_~v~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 7080#L47-3 [2021-12-16 09:32:17,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:32:17,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1064733596, now seen corresponding path program 5 times [2021-12-16 09:32:17,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:32:17,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761213664] [2021-12-16 09:32:17,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:32:17,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:32:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:32:20,128 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:32:20,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:32:20,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761213664] [2021-12-16 09:32:20,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761213664] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:32:20,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600724867] [2021-12-16 09:32:20,128 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-16 09:32:20,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:32:20,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:32:20,130 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:32:20,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process