./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/avg05-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/avg05-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y --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 02f02b7f59fc1c3b5c77751f648b2e92e85109b700d3d48af7999437b36b94ea --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:39:25,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:39:25,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:39:25,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:39:25,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:39:25,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:39:25,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:39:25,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:39:25,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:39:25,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:39:25,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:39:25,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:39:25,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:39:25,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:39:25,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:39:25,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:39:25,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:39:25,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:39:25,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:39:25,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:39:25,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:39:25,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:39:25,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:39:25,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:39:25,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:39:25,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:39:25,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:39:25,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:39:25,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:39:25,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:39:25,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:39:25,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:39:25,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:39:25,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:39:25,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:39:25,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:39:25,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:39:25,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:39:25,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:39:25,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:39:25,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:39:25,525 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 18:39:25,576 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:39:25,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:39:25,577 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:39:25,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:39:25,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:39:25,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:39:25,580 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:39:25,581 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 18:39:25,581 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 18:39:25,581 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 18:39:25,582 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 18:39:25,583 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 18:39:25,583 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 18:39:25,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:39:25,583 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:39:25,584 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:39:25,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:39:25,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:39:25,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:39:25,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 18:39:25,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 18:39:25,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 18:39:25,585 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:39:25,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:39:25,585 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 18:39:25,586 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:39:25,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 18:39:25,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:39:25,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:39:25,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:39:25,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:39:25,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:39:25,590 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 18:39:25,590 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02f02b7f59fc1c3b5c77751f648b2e92e85109b700d3d48af7999437b36b94ea [2021-11-13 18:39:25,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:39:25,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:39:25,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:39:25,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:39:25,889 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:39:25,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/reducercommutativity/avg05-1.i [2021-11-13 18:39:25,954 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/data/c904e7f1e/e14179e7381a48dbb1242909cd2c237c/FLAG1af32c954 [2021-11-13 18:39:26,423 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:39:26,424 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/sv-benchmarks/c/reducercommutativity/avg05-1.i [2021-11-13 18:39:26,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/data/c904e7f1e/e14179e7381a48dbb1242909cd2c237c/FLAG1af32c954 [2021-11-13 18:39:26,781 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/data/c904e7f1e/e14179e7381a48dbb1242909cd2c237c [2021-11-13 18:39:26,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:39:26,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:39:26,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:39:26,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:39:26,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:39:26,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:39:26" (1/1) ... [2021-11-13 18:39:26,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e571b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:26, skipping insertion in model container [2021-11-13 18:39:26,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:39:26" (1/1) ... [2021-11-13 18:39:26,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:39:26,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:39:27,047 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/sv-benchmarks/c/reducercommutativity/avg05-1.i[1275,1288] [2021-11-13 18:39:27,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:39:27,063 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:39:27,105 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/sv-benchmarks/c/reducercommutativity/avg05-1.i[1275,1288] [2021-11-13 18:39:27,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:39:27,125 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:39:27,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:27 WrapperNode [2021-11-13 18:39:27,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:39:27,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:39:27,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:39:27,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:39:27,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:27" (1/1) ... [2021-11-13 18:39:27,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:27" (1/1) ... [2021-11-13 18:39:27,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:39:27,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:39:27,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:39:27,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:39:27,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:27" (1/1) ... [2021-11-13 18:39:27,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:27" (1/1) ... [2021-11-13 18:39:27,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:27" (1/1) ... [2021-11-13 18:39:27,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:27" (1/1) ... [2021-11-13 18:39:27,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:27" (1/1) ... [2021-11-13 18:39:27,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:27" (1/1) ... [2021-11-13 18:39:27,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:27" (1/1) ... [2021-11-13 18:39:27,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:39:27,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:39:27,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:39:27,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:39:27,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:27" (1/1) ... [2021-11-13 18:39:27,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:27,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:27,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:27,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 18:39:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:39:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:39:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:39:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:39:27,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:39:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:39:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:39:27,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:39:27,657 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-13 18:39:27,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:39:27 BoogieIcfgContainer [2021-11-13 18:39:27,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:39:27,660 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 18:39:27,660 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 18:39:27,664 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 18:39:27,665 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:39:27,665 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:39:26" (1/3) ... [2021-11-13 18:39:27,667 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61a349df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:39:27, skipping insertion in model container [2021-11-13 18:39:27,667 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:39:27,667 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:39:27" (2/3) ... [2021-11-13 18:39:27,667 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61a349df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:39:27, skipping insertion in model container [2021-11-13 18:39:27,668 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:39:27,668 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:39:27" (3/3) ... [2021-11-13 18:39:27,669 INFO L388 chiAutomizerObserver]: Analyzing ICFG avg05-1.i [2021-11-13 18:39:27,717 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 18:39:27,717 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 18:39:27,717 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 18:39:27,718 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 18:39:27,718 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 18:39:27,718 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 18:39:27,718 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 18:39:27,718 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 18:39:27,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 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) [2021-11-13 18:39:27,758 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-11-13 18:39:27,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:39:27,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:39:27,764 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-13 18:39:27,764 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:39:27,764 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 18:39:27,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 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) [2021-11-13 18:39:27,768 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-11-13 18:39:27,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:39:27,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:39:27,769 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-13 18:39:27,769 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:39:27,776 INFO L791 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 15#L34-3true [2021-11-13 18:39:27,777 INFO L793 eck$LassoCheckResult]: Loop: 15#L34-3true assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 11#L34-2true main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 15#L34-3true [2021-11-13 18:39:27,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:27,783 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-13 18:39:27,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:27,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138521302] [2021-11-13 18:39:27,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:27,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:27,928 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:27,978 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:27,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:27,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-11-13 18:39:27,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:27,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866301547] [2021-11-13 18:39:27,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:27,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:28,014 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:28,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:28,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:28,038 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-11-13 18:39:28,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:28,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099858911] [2021-11-13 18:39:28,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:28,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:28,062 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:28,093 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:28,657 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:39:28,658 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:39:28,658 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:39:28,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:39:28,659 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:39:28,659 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:28,659 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:39:28,660 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:39:28,660 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg05-1.i_Iteration1_Lasso [2021-11-13 18:39:28,660 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:39:28,661 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:39:28,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:28,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:29,208 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:39:29,213 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:39:29,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:29,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:29,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:29,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-13 18:39:29,220 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 [2021-11-13 18:39:29,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:29,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:29,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:29,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:29,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:29,233 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:29,233 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:29,243 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:29,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:29,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:29,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:29,289 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:29,296 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 [2021-11-13 18:39:29,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:29,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:29,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:29,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:29,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:29,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:29,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:29,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-13 18:39:29,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:29,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:29,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:29,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:29,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:29,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-13 18:39:29,365 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 [2021-11-13 18:39:29,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:29,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:29,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:29,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:29,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:29,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:29,402 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:29,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:29,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:29,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:29,443 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:29,451 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 [2021-11-13 18:39:29,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:29,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:29,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:29,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:29,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:29,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:29,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:29,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-13 18:39:29,478 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:29,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:29,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:29,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:29,517 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:29,523 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 [2021-11-13 18:39:29,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:29,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:29,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:29,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:29,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:29,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:29,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:29,540 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:29,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-13 18:39:29,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:29,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:29,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:29,571 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:29,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-13 18:39:29,572 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 [2021-11-13 18:39:29,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:29,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:29,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:29,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:29,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:29,583 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:29,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:29,593 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:29,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:29,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:29,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:29,624 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:29,627 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 [2021-11-13 18:39:29,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-13 18:39:29,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:29,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:29,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:29,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:29,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:29,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:29,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:29,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:29,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:29,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:29,691 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:29,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-13 18:39:29,699 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 [2021-11-13 18:39:29,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:29,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:29,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:29,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:29,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:29,712 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:29,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:29,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:29,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:29,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:29,775 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:29,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-13 18:39:29,787 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 [2021-11-13 18:39:29,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:29,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:29,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:29,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:29,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:29,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:29,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:29,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:29,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:29,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:29,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:29,860 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:29,871 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 [2021-11-13 18:39:29,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-13 18:39:29,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:29,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:29,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:29,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:29,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:29,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:29,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:29,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:29,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:29,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:29,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:29,922 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:29,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-13 18:39:29,924 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 [2021-11-13 18:39:29,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:29,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:29,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:29,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:29,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:29,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:29,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:29,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:30,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:30,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:30,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:30,005 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:30,015 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 [2021-11-13 18:39:30,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:30,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:30,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:30,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:30,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:30,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:30,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-13 18:39:30,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:30,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:30,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:30,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:30,087 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:30,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-13 18:39:30,093 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 [2021-11-13 18:39:30,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:30,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:30,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:30,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:30,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:30,109 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:30,130 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:30,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:30,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:30,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:30,167 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:30,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-13 18:39:30,173 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 [2021-11-13 18:39:30,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:30,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:30,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:30,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:30,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:30,189 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:30,207 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:39:30,265 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-11-13 18:39:30,266 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-11-13 18:39:30,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:30,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:30,284 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:30,355 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:39:30,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-13 18:39:30,373 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-13 18:39:30,373 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:39:30,374 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_1, ULTIMATE.start_main_~i~1#1) = 9*v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_1 - 8*ULTIMATE.start_main_~i~1#1 Supporting invariants [] [2021-11-13 18:39:30,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:30,475 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-11-13 18:39:30,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:30,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:39:30,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:39:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:30,554 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 18:39:30,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:39:30,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:39:30,658 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 [2021-11-13 18:39:30,659 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 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) [2021-11-13 18:39:30,780 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 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 66 states and 92 transitions. Complement of second has 8 states. [2021-11-13 18:39:30,782 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 [2021-11-13 18:39:30,796 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) [2021-11-13 18:39:30,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 61 transitions. [2021-11-13 18:39:30,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-13 18:39:30,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:39:30,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-13 18:39:30,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:39:30,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-13 18:39:30,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:39:30,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 92 transitions. [2021-11-13 18:39:30,807 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-13 18:39:30,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 19 states and 24 transitions. [2021-11-13 18:39:30,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-11-13 18:39:30,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-13 18:39:30,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2021-11-13 18:39:30,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:39:30,813 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-11-13 18:39:30,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2021-11-13 18:39:30,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-13 18:39:30,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 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) [2021-11-13 18:39:30,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-11-13 18:39:30,838 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-11-13 18:39:30,838 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-11-13 18:39:30,838 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 18:39:30,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2021-11-13 18:39:30,840 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-13 18:39:30,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:39:30,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:39:30,840 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-13 18:39:30,840 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:39:30,840 INFO L791 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 160#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 171#L34-3 assume !(main_~i~1#1 < 5); 163#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 164#L20-3 [2021-11-13 18:39:30,841 INFO L793 eck$LassoCheckResult]: Loop: 164#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 177#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 164#L20-3 [2021-11-13 18:39:30,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:30,841 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-11-13 18:39:30,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:30,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843312233] [2021-11-13 18:39:30,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:30,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:30,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:30,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:39:30,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:30,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843312233] [2021-11-13 18:39:30,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843312233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:39:30,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:39:30,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:39:30,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155320099] [2021-11-13 18:39:30,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:39:30,951 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:39:30,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:30,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 1 times [2021-11-13 18:39:30,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:30,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469607220] [2021-11-13 18:39:30,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:30,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:30,969 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:30,980 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:31,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:31,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:39:31,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:39:31,049 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 10 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) [2021-11-13 18:39:31,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:31,066 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2021-11-13 18:39:31,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:39:31,068 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2021-11-13 18:39:31,076 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-13 18:39:31,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 24 transitions. [2021-11-13 18:39:31,079 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-13 18:39:31,079 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-13 18:39:31,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2021-11-13 18:39:31,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:39:31,080 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-11-13 18:39:31,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2021-11-13 18:39:31,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-11-13 18:39:31,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 18 states have internal predecessors, (23), 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) [2021-11-13 18:39:31,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-11-13 18:39:31,087 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-13 18:39:31,087 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-13 18:39:31,087 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-13 18:39:31,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2021-11-13 18:39:31,089 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-13 18:39:31,089 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:39:31,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:39:31,090 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-13 18:39:31,090 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:39:31,091 INFO L791 eck$LassoCheckResult]: Stem: 206#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 207#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 216#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 219#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 220#L34-3 assume !(main_~i~1#1 < 5); 208#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 209#L20-3 [2021-11-13 18:39:31,091 INFO L793 eck$LassoCheckResult]: Loop: 209#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 222#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 209#L20-3 [2021-11-13 18:39:31,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:31,095 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2021-11-13 18:39:31,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:31,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972302740] [2021-11-13 18:39:31,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:31,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:31,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:39:31,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:31,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972302740] [2021-11-13 18:39:31,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972302740] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:39:31,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65281036] [2021-11-13 18:39:31,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:31,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:39:31,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:31,134 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:39:31,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-13 18:39:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:31,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:39:31,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:39:31,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:39:31,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:39:31,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:39:31,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65281036] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:39:31,288 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:39:31,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-13 18:39:31,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277729812] [2021-11-13 18:39:31,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:39:31,289 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:39:31,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:31,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 2 times [2021-11-13 18:39:31,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:31,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540165585] [2021-11-13 18:39:31,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:31,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:31,302 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:31,312 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:31,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:31,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:39:31,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:39:31,364 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:39:31,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:31,405 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2021-11-13 18:39:31,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:39:31,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 29 transitions. [2021-11-13 18:39:31,411 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-13 18:39:31,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 29 transitions. [2021-11-13 18:39:31,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-13 18:39:31,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-13 18:39:31,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 29 transitions. [2021-11-13 18:39:31,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:39:31,413 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-11-13 18:39:31,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 29 transitions. [2021-11-13 18:39:31,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-13 18:39:31,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.16) internal successors, (29), 24 states have internal predecessors, (29), 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) [2021-11-13 18:39:31,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-11-13 18:39:31,419 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-11-13 18:39:31,419 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-11-13 18:39:31,419 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-13 18:39:31,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 29 transitions. [2021-11-13 18:39:31,422 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-13 18:39:31,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:39:31,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:39:31,423 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2021-11-13 18:39:31,423 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:39:31,423 INFO L791 eck$LassoCheckResult]: Stem: 288#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 289#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 300#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 307#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 308#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 303#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 304#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 312#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 311#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 310#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 309#L34-3 assume !(main_~i~1#1 < 5); 292#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 293#L20-3 [2021-11-13 18:39:31,424 INFO L793 eck$LassoCheckResult]: Loop: 293#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 306#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 293#L20-3 [2021-11-13 18:39:31,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:31,424 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 2 times [2021-11-13 18:39:31,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:31,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700090997] [2021-11-13 18:39:31,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:31,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:31,535 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:39:31,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:31,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700090997] [2021-11-13 18:39:31,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700090997] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:39:31,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740728754] [2021-11-13 18:39:31,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 18:39:31,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:39:31,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:31,539 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:39:31,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-13 18:39:31,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 18:39:31,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:39:31,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 18:39:31,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:39:31,650 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:39:31,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:39:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:39:31,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740728754] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:39:31,706 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:39:31,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2021-11-13 18:39:31,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960251530] [2021-11-13 18:39:31,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:39:31,707 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:39:31,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:31,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 3 times [2021-11-13 18:39:31,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:31,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043125813] [2021-11-13 18:39:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:31,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:31,712 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:31,718 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:31,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:31,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:39:31,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:39:31,764 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. cyclomatic complexity: 9 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-11-13 18:39:31,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:31,798 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2021-11-13 18:39:31,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:39:31,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions. [2021-11-13 18:39:31,806 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-13 18:39:31,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 31 transitions. [2021-11-13 18:39:31,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-13 18:39:31,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-13 18:39:31,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 31 transitions. [2021-11-13 18:39:31,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:39:31,809 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-11-13 18:39:31,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 31 transitions. [2021-11-13 18:39:31,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-13 18:39:31,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 26 states have internal predecessors, (31), 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) [2021-11-13 18:39:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-11-13 18:39:31,814 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-11-13 18:39:31,814 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-11-13 18:39:31,814 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-13 18:39:31,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 31 transitions. [2021-11-13 18:39:31,818 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-13 18:39:31,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:39:31,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:39:31,819 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2021-11-13 18:39:31,819 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:39:31,820 INFO L791 eck$LassoCheckResult]: Stem: 417#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 418#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 429#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 436#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 437#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 432#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 433#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 443#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 442#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 441#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 440#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 439#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 438#L34-3 assume !(main_~i~1#1 < 5); 421#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 422#L20-3 [2021-11-13 18:39:31,820 INFO L793 eck$LassoCheckResult]: Loop: 422#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 435#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 422#L20-3 [2021-11-13 18:39:31,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:31,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 3 times [2021-11-13 18:39:31,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:31,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819481409] [2021-11-13 18:39:31,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:31,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:31,877 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:31,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:31,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:31,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 4 times [2021-11-13 18:39:31,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:31,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314404059] [2021-11-13 18:39:31,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:31,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:31,926 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:31,933 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:31,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:31,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1715425495, now seen corresponding path program 1 times [2021-11-13 18:39:31,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:31,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589281905] [2021-11-13 18:39:31,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:31,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:31,982 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:32,026 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:33,643 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:39:33,643 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:39:33,643 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:39:33,644 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:39:33,644 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:39:33,644 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:33,644 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:39:33,644 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:39:33,644 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg05-1.i_Iteration5_Lasso [2021-11-13 18:39:33,644 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:39:33,644 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:39:33,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:33,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:39:34,267 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:39:34,267 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:39:34,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,288 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,291 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 [2021-11-13 18:39:34,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-13 18:39:34,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:34,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:34,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:34,301 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-11-13 18:39:34,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,323 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-13 18:39:34,328 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 [2021-11-13 18:39:34,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:34,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:34,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:34,337 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:34,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,358 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-13 18:39:34,360 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 [2021-11-13 18:39:34,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:34,369 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:34,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:34,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,395 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-13 18:39:34,400 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 [2021-11-13 18:39:34,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:34,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:34,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:34,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:34,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,431 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-13 18:39:34,433 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 [2021-11-13 18:39:34,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:34,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:34,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:34,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:34,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,463 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-13 18:39:34,464 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 [2021-11-13 18:39:34,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:34,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:34,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:34,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,507 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-13 18:39:34,509 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 [2021-11-13 18:39:34,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:34,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:34,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-11-13 18:39:34,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,543 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,545 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 [2021-11-13 18:39:34,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-13 18:39:34,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:34,556 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:34,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:34,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,593 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-13 18:39:34,597 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 [2021-11-13 18:39:34,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:34,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:34,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:34,606 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-11-13 18:39:34,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,626 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-13 18:39:34,630 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 [2021-11-13 18:39:34,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:34,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:34,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-11-13 18:39:34,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,666 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-13 18:39:34,669 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 [2021-11-13 18:39:34,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:34,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:34,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:34,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,723 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-13 18:39:34,724 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 [2021-11-13 18:39:34,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:34,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:34,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-11-13 18:39:34,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,766 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,776 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 [2021-11-13 18:39:34,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-13 18:39:34,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:34,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:34,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:34,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,812 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-13 18:39:34,814 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 [2021-11-13 18:39:34,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:39:34,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:39:34,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:39:34,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:34,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,857 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-13 18:39:34,862 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 [2021-11-13 18:39:34,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,870 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:34,870 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:34,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:39:34,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-11-13 18:39:34,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,894 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-13 18:39:34,898 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 [2021-11-13 18:39:34,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:39:34,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:39:34,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:39:34,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:39:34,913 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:39:34,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:39:34,943 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:39:34,964 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-11-13 18:39:34,965 INFO L444 ModelExtractionUtils]: 6 out of 28 variables were initially zero. Simplification set additionally 19 variables to zero. [2021-11-13 18:39:34,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:39:34,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:34,975 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:39:34,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-13 18:39:34,976 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:39:34,985 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-13 18:39:34,985 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:39:34,986 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_avg_~i~0#1) = -2*ULTIMATE.start_avg_~i~0#1 + 9 Supporting invariants [] [2021-11-13 18:39:35,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-11-13 18:39:35,037 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-11-13 18:39:35,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:35,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:39:35,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:39:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:35,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:39:35,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:39:35,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:39:35,175 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 [2021-11-13 18:39:35,175 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 31 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-13 18:39:35,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-13 18:39:35,194 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 31 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 31 states and 38 transitions. Complement of second has 7 states. [2021-11-13 18:39:35,195 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 [2021-11-13 18:39:35,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-13 18:39:35,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-11-13 18:39:35,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 2 letters. [2021-11-13 18:39:35,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:39:35,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 16 letters. Loop has 2 letters. [2021-11-13 18:39:35,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:39:35,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 4 letters. [2021-11-13 18:39:35,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:39:35,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2021-11-13 18:39:35,198 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-13 18:39:35,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 28 states and 33 transitions. [2021-11-13 18:39:35,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-11-13 18:39:35,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-11-13 18:39:35,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 33 transitions. [2021-11-13 18:39:35,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:39:35,200 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-11-13 18:39:35,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 33 transitions. [2021-11-13 18:39:35,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-13 18:39:35,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 27 states have internal predecessors, (33), 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) [2021-11-13 18:39:35,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-11-13 18:39:35,202 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-11-13 18:39:35,202 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-11-13 18:39:35,202 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-13 18:39:35,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 33 transitions. [2021-11-13 18:39:35,203 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-13 18:39:35,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:39:35,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:39:35,211 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:39:35,211 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:39:35,211 INFO L791 eck$LassoCheckResult]: Stem: 593#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 594#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 603#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 611#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 612#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 606#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 607#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 618#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 617#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 616#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 615#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 614#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 613#L34-3 assume !(main_~i~1#1 < 5); 595#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 596#L20-3 assume !(avg_~i~0#1 < 5); 604#L20-4 avg_#res#1 := (if (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 else (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 - 4294967296); 605#L23 main_#t~ret7#1 := avg_#res#1;assume { :end_inline_avg } true;main_~ret~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 601#L20-8 [2021-11-13 18:39:35,212 INFO L793 eck$LassoCheckResult]: Loop: 601#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 602#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 601#L20-8 [2021-11-13 18:39:35,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:35,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1638581027, now seen corresponding path program 1 times [2021-11-13 18:39:35,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:35,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605271293] [2021-11-13 18:39:35,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:35,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:35,255 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-13 18:39:35,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:35,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605271293] [2021-11-13 18:39:35,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605271293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:39:35,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:39:35,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:39:35,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855266391] [2021-11-13 18:39:35,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:39:35,259 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:39:35,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:35,260 INFO L85 PathProgramCache]: Analyzing trace with hash 2243, now seen corresponding path program 1 times [2021-11-13 18:39:35,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:35,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506920031] [2021-11-13 18:39:35,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:35,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:35,267 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:35,272 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:35,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:35,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:39:35,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:39:35,317 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:39:35,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:35,347 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2021-11-13 18:39:35,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:39:35,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 37 transitions. [2021-11-13 18:39:35,351 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-13 18:39:35,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 37 transitions. [2021-11-13 18:39:35,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-11-13 18:39:35,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-11-13 18:39:35,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 37 transitions. [2021-11-13 18:39:35,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:39:35,354 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 37 transitions. [2021-11-13 18:39:35,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 37 transitions. [2021-11-13 18:39:35,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2021-11-13 18:39:35,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 28 states have internal predecessors, (33), 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) [2021-11-13 18:39:35,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2021-11-13 18:39:35,365 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-11-13 18:39:35,366 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-11-13 18:39:35,366 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-13 18:39:35,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 33 transitions. [2021-11-13 18:39:35,368 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-13 18:39:35,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:39:35,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:39:35,370 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:39:35,370 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:39:35,371 INFO L791 eck$LassoCheckResult]: Stem: 660#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 661#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 670#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 673#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 674#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 679#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 686#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 685#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 684#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 683#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 682#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 681#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 680#L34-3 assume !(main_~i~1#1 < 5); 662#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 663#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 676#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 677#L20-3 assume !(avg_~i~0#1 < 5); 671#L20-4 avg_#res#1 := (if (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 else (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 - 4294967296); 672#L23 main_#t~ret7#1 := avg_#res#1;assume { :end_inline_avg } true;main_~ret~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 668#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 669#L20-7 [2021-11-13 18:39:35,372 INFO L793 eck$LassoCheckResult]: Loop: 669#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 678#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 669#L20-7 [2021-11-13 18:39:35,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:35,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1577614809, now seen corresponding path program 1 times [2021-11-13 18:39:35,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:35,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618099813] [2021-11-13 18:39:35,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:35,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:35,448 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-13 18:39:35,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:35,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618099813] [2021-11-13 18:39:35,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618099813] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:39:35,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881525777] [2021-11-13 18:39:35,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:35,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:39:35,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:35,451 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:39:35,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-13 18:39:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:35,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:39:35,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:39:35,561 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-13 18:39:35,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:39:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-13 18:39:35,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881525777] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:39:35,617 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:39:35,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-13 18:39:35,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767328369] [2021-11-13 18:39:35,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:39:35,622 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:39:35,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:35,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 2 times [2021-11-13 18:39:35,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:35,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146527323] [2021-11-13 18:39:35,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:35,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:35,633 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:35,647 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:35,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:35,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:39:35,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:39:35,687 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2021-11-13 18:39:35,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:35,751 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2021-11-13 18:39:35,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:39:35,752 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 52 transitions. [2021-11-13 18:39:35,753 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-13 18:39:35,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 52 transitions. [2021-11-13 18:39:35,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-11-13 18:39:35,754 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-11-13 18:39:35,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 52 transitions. [2021-11-13 18:39:35,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:39:35,755 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-11-13 18:39:35,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 52 transitions. [2021-11-13 18:39:35,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 41. [2021-11-13 18:39:35,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 40 states have internal predecessors, (45), 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) [2021-11-13 18:39:35,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2021-11-13 18:39:35,758 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 45 transitions. [2021-11-13 18:39:35,759 INFO L587 BuchiCegarLoop]: Abstraction has 41 states and 45 transitions. [2021-11-13 18:39:35,759 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-13 18:39:35,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 45 transitions. [2021-11-13 18:39:35,759 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-13 18:39:35,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:39:35,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:39:35,761 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:39:35,761 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:39:35,761 INFO L791 eck$LassoCheckResult]: Stem: 861#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 862#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 871#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 874#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 875#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 881#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 899#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 898#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 897#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 896#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 895#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 894#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 893#L34-3 assume !(main_~i~1#1 < 5); 863#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 864#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 877#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 878#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 879#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 892#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 891#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 890#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 887#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 886#L20-3 assume !(avg_~i~0#1 < 5); 872#L20-4 avg_#res#1 := (if (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 else (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 - 4294967296); 873#L23 main_#t~ret7#1 := avg_#res#1;assume { :end_inline_avg } true;main_~ret~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 869#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 870#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 880#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 889#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 888#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 885#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 884#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 883#L20-7 [2021-11-13 18:39:35,761 INFO L793 eck$LassoCheckResult]: Loop: 883#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 882#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 883#L20-7 [2021-11-13 18:39:35,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:35,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1218450663, now seen corresponding path program 1 times [2021-11-13 18:39:35,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:35,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405995512] [2021-11-13 18:39:35,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:35,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-13 18:39:35,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:35,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405995512] [2021-11-13 18:39:35,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405995512] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:39:35,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230580336] [2021-11-13 18:39:35,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:35,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:39:35,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:35,856 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:39:35,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-13 18:39:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:35,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 18:39:35,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:39:35,998 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-13 18:39:35,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:39:36,057 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-13 18:39:36,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230580336] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:39:36,058 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:39:36,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2021-11-13 18:39:36,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586145657] [2021-11-13 18:39:36,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:39:36,059 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:39:36,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:36,059 INFO L85 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 3 times [2021-11-13 18:39:36,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:36,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159170234] [2021-11-13 18:39:36,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:36,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:36,063 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:36,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:36,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:36,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:39:36,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:39:36,104 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. cyclomatic complexity: 9 Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-11-13 18:39:36,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:36,182 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2021-11-13 18:39:36,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:39:36,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 58 transitions. [2021-11-13 18:39:36,187 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-13 18:39:36,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 54 states and 58 transitions. [2021-11-13 18:39:36,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-11-13 18:39:36,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-11-13 18:39:36,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 58 transitions. [2021-11-13 18:39:36,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:39:36,193 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 58 transitions. [2021-11-13 18:39:36,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 58 transitions. [2021-11-13 18:39:36,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2021-11-13 18:39:36,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 44 states have internal predecessors, (49), 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) [2021-11-13 18:39:36,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2021-11-13 18:39:36,204 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-11-13 18:39:36,204 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-11-13 18:39:36,204 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-13 18:39:36,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 49 transitions. [2021-11-13 18:39:36,205 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-13 18:39:36,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:39:36,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:39:36,207 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:39:36,207 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:39:36,207 INFO L791 eck$LassoCheckResult]: Stem: 1151#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 1152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 1163#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1166#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1167#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1173#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1195#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1194#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1193#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1192#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1191#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1190#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1189#L34-3 assume !(main_~i~1#1 < 5); 1155#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 1156#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1169#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1170#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1171#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1188#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1187#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1185#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1183#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1181#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1178#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1177#L20-3 assume !(avg_~i~0#1 < 5); 1164#L20-4 avg_#res#1 := (if (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 else (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 - 4294967296); 1165#L23 main_#t~ret7#1 := avg_#res#1;assume { :end_inline_avg } true;main_~ret~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 1161#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1162#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1172#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1186#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1184#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1182#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1180#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1179#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1176#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1175#L20-7 [2021-11-13 18:39:36,207 INFO L793 eck$LassoCheckResult]: Loop: 1175#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1174#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1175#L20-7 [2021-11-13 18:39:36,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:36,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2144167641, now seen corresponding path program 2 times [2021-11-13 18:39:36,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:36,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957373688] [2021-11-13 18:39:36,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:36,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:36,312 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:36,403 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:36,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:36,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 4 times [2021-11-13 18:39:36,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:36,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850315604] [2021-11-13 18:39:36,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:36,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:36,408 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:36,411 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:36,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:36,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1039200421, now seen corresponding path program 3 times [2021-11-13 18:39:36,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:36,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624843948] [2021-11-13 18:39:36,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:36,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-13 18:39:36,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:36,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624843948] [2021-11-13 18:39:36,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624843948] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:39:36,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038207993] [2021-11-13 18:39:36,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 18:39:36,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:39:36,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:39:36,503 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:39:36,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e40302-9a3e-4927-8084-a51562a65661/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-11-13 18:39:36,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-13 18:39:36,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:39:36,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:39:36,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:39:36,701 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-13 18:39:36,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:39:36,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038207993] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:39:36,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:39:36,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-11-13 18:39:36,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795300471] [2021-11-13 18:39:36,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:39:36,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:36,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:39:36,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:39:36,745 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. cyclomatic complexity: 9 Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-11-13 18:39:36,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:36,832 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2021-11-13 18:39:36,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:39:36,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 55 transitions. [2021-11-13 18:39:36,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 18:39:36,834 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 42 states and 43 transitions. [2021-11-13 18:39:36,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-11-13 18:39:36,835 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-11-13 18:39:36,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 43 transitions. [2021-11-13 18:39:36,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:39:36,835 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-11-13 18:39:36,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 43 transitions. [2021-11-13 18:39:36,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-11-13 18:39:36,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.0238095238095237) internal successors, (43), 41 states have internal predecessors, (43), 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) [2021-11-13 18:39:36,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2021-11-13 18:39:36,838 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-11-13 18:39:36,839 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-11-13 18:39:36,839 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-13 18:39:36,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 43 transitions. [2021-11-13 18:39:36,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 18:39:36,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:39:36,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:39:36,841 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:39:36,841 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:39:36,842 INFO L791 eck$LassoCheckResult]: Stem: 1377#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 1378#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 1385#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1393#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1394#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1388#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1389#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1416#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1415#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1414#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1413#L34-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1412#L34-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1411#L34-3 assume !(main_~i~1#1 < 5); 1379#L34-4 assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 1380#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1390#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1391#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1409#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1407#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1405#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1403#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1401#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1399#L20-3 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1397#L20-2 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1396#L20-3 assume !(avg_~i~0#1 < 5); 1386#L20-4 avg_#res#1 := (if (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 else (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 - 4294967296); 1387#L23 main_#t~ret7#1 := avg_#res#1;assume { :end_inline_avg } true;main_~ret~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_avg } true;avg_#in~x#1.base, avg_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc avg_#res#1;havoc avg_#t~mem4#1, avg_#t~post3#1, avg_~x#1.base, avg_~x#1.offset, avg_~i~0#1, avg_~ret~0#1;avg_~x#1.base, avg_~x#1.offset := avg_#in~x#1.base, avg_#in~x#1.offset;havoc avg_~i~0#1;havoc avg_~ret~0#1;avg_~ret~0#1 := 0;avg_~i~0#1 := 0; 1383#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1384#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1392#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1410#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1408#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1406#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1404#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1402#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1400#L20-8 assume !!(avg_~i~0#1 < 5);call avg_#t~mem4#1 := read~int(avg_~x#1.base, avg_~x#1.offset + 4 * avg_~i~0#1, 4);avg_~ret~0#1 := avg_~ret~0#1 + avg_#t~mem4#1;havoc avg_#t~mem4#1; 1398#L20-7 avg_#t~post3#1 := avg_~i~0#1;avg_~i~0#1 := 1 + avg_#t~post3#1;havoc avg_#t~post3#1; 1395#L20-8 assume !(avg_~i~0#1 < 5); 1375#L20-9 avg_#res#1 := (if (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 else (if avg_~ret~0#1 < 0 && 0 != avg_~ret~0#1 % 5 then 1 + avg_~ret~0#1 / 5 else avg_~ret~0#1 / 5) % 4294967296 - 4294967296); 1376#L23-1 main_#t~ret10#1 := avg_#res#1;assume { :end_inline_avg } true;main_~ret2~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1;call main_#t~mem11#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem11#1;havoc main_#t~mem11#1;main_~i~2#1 := 0; 1382#L43-3 [2021-11-13 18:39:36,842 INFO L793 eck$LassoCheckResult]: Loop: 1382#L43-3 assume !!(main_~i~2#1 < 4);call main_#t~mem13#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~2#1), 4);call write~int(main_#t~mem13#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~2#1, 4);havoc main_#t~mem13#1; 1381#L43-2 main_#t~post12#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 1382#L43-3 [2021-11-13 18:39:36,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:36,843 INFO L85 PathProgramCache]: Analyzing trace with hash -2055775835, now seen corresponding path program 1 times [2021-11-13 18:39:36,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:36,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125712927] [2021-11-13 18:39:36,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:36,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:36,906 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:36,961 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:36,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:36,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2755, now seen corresponding path program 1 times [2021-11-13 18:39:36,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:36,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793918872] [2021-11-13 18:39:36,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:36,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:36,965 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:36,969 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:36,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:36,970 INFO L85 PathProgramCache]: Analyzing trace with hash 84380519, now seen corresponding path program 1 times [2021-11-13 18:39:36,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:36,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819847045] [2021-11-13 18:39:36,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:36,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:37,020 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:39:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:39:37,099 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:39:42,462 WARN L227 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 399 DAG size of output: 294 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-13 18:40:26,331 WARN L227 SmtUtils]: Spent 12.13s on a formula simplification that was a NOOP. DAG size: 44 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-13 18:40:57,860 WARN L227 SmtUtils]: Spent 12.13s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-13 18:41:07,407 WARN L227 SmtUtils]: Spent 7.06s on a formula simplification that was a NOOP. DAG size: 215 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-13 18:41:07,421 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:41:07,421 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:41:07,421 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:41:07,421 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:41:07,421 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:41:07,422 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:41:07,422 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:41:07,422 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:41:07,422 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg05-1.i_Iteration10_Lasso [2021-11-13 18:41:07,422 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:41:07,422 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:41:07,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:07,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:41:12,176 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 66