./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/bubble_sort-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/bubble_sort-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt --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 0e1acfd31445967c69cca4f8260e477710826362 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: line 132529 column 2255: unknown constant v_ULTIMATE.start_q1_#t~nondet25_17 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:21:59,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:21:59,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:21:59,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:21:59,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:21:59,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:21:59,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:21:59,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:21:59,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:21:59,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:21:59,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:21:59,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:21:59,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:21:59,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:21:59,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:21:59,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:21:59,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:21:59,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:21:59,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:21:59,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:21:59,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:21:59,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:21:59,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:21:59,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:21:59,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:21:59,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:21:59,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:21:59,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:21:59,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:21:59,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:21:59,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:21:59,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:21:59,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:21:59,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:21:59,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:21:59,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:21:59,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:21:59,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:21:59,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:21:59,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:21:59,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:21:59,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:21:59,248 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:21:59,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:21:59,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:21:59,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:21:59,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:21:59,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:21:59,252 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:21:59,253 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:21:59,253 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:21:59,253 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:21:59,254 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:21:59,255 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:21:59,255 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:21:59,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:21:59,256 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:21:59,256 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:21:59,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:21:59,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:21:59,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:21:59,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:21:59,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:21:59,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:21:59,257 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:21:59,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:21:59,258 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:21:59,258 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:21:59,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:21:59,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:21:59,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:21:59,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:21:59,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:21:59,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:21:59,263 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:21:59,263 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_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e1acfd31445967c69cca4f8260e477710826362 [2021-10-13 00:21:59,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:21:59,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:21:59,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:21:59,576 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:21:59,577 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:21:59,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/loops/bubble_sort-1.c [2021-10-13 00:21:59,665 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/data/c7d5c618c/fc973943f47b40cd8db30a1532c50548/FLAG9f35cf38c [2021-10-13 00:22:00,272 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:22:00,277 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/sv-benchmarks/c/loops/bubble_sort-1.c [2021-10-13 00:22:00,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/data/c7d5c618c/fc973943f47b40cd8db30a1532c50548/FLAG9f35cf38c [2021-10-13 00:22:00,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/data/c7d5c618c/fc973943f47b40cd8db30a1532c50548 [2021-10-13 00:22:00,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:22:00,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:22:00,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:22:00,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:22:00,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:22:00,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:22:00" (1/1) ... [2021-10-13 00:22:00,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423b5df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00, skipping insertion in model container [2021-10-13 00:22:00,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:22:00" (1/1) ... [2021-10-13 00:22:00,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:22:00,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:22:00,833 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_b6797195-edb8-416e-829c-f17f44ae3e9d/sv-benchmarks/c/loops/bubble_sort-1.c[325,338] [2021-10-13 00:22:00,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:22:00,882 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:22:00,896 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_b6797195-edb8-416e-829c-f17f44ae3e9d/sv-benchmarks/c/loops/bubble_sort-1.c[325,338] [2021-10-13 00:22:00,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:22:00,933 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:22:00,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00 WrapperNode [2021-10-13 00:22:00,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:22:00,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:22:00,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:22:00,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:22:00,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00" (1/1) ... [2021-10-13 00:22:00,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00" (1/1) ... [2021-10-13 00:22:00,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:22:00,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:22:00,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:22:00,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:22:01,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00" (1/1) ... [2021-10-13 00:22:01,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00" (1/1) ... [2021-10-13 00:22:01,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00" (1/1) ... [2021-10-13 00:22:01,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00" (1/1) ... [2021-10-13 00:22:01,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00" (1/1) ... [2021-10-13 00:22:01,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00" (1/1) ... [2021-10-13 00:22:01,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00" (1/1) ... [2021-10-13 00:22:01,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:22:01,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:22:01,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:22:01,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:22:01,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00" (1/1) ... [2021-10-13 00:22:01,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:01,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:01,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:01,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:22:01,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:22:01,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:22:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:22:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:22:01,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:22:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:22:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:22:01,491 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:22:01,491 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-13 00:22:01,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:22:01 BoogieIcfgContainer [2021-10-13 00:22:01,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:22:01,495 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:22:01,495 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:22:01,514 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:22:01,515 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:22:01,515 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:22:00" (1/3) ... [2021-10-13 00:22:01,517 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69be19fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:22:01, skipping insertion in model container [2021-10-13 00:22:01,517 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:22:01,517 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:22:00" (2/3) ... [2021-10-13 00:22:01,518 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69be19fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:22:01, skipping insertion in model container [2021-10-13 00:22:01,518 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:22:01,518 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:22:01" (3/3) ... [2021-10-13 00:22:01,520 INFO L389 chiAutomizerObserver]: Analyzing ICFG bubble_sort-1.c [2021-10-13 00:22:01,608 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:22:01,608 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:22:01,608 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:22:01,609 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:22:01,609 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:22:01,609 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:22:01,609 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:22:01,609 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:22:01,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 26 states have internal predecessors, (44), 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) [2021-10-13 00:22:01,691 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 14 [2021-10-13 00:22:01,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:22:01,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:22:01,699 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:22:01,699 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:22:01,699 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:22:01,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 26 states have internal predecessors, (44), 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) [2021-10-13 00:22:01,703 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 14 [2021-10-13 00:22:01,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:22:01,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:22:01,704 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:22:01,704 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:22:01,712 INFO L791 eck$LassoCheckResult]: Stem: 19#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 7#L-1true main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 6#L56true assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 27#L65true assume q1_#t~switch20;q1_~i~1 := 0; 11#L66-3true [2021-10-13 00:22:01,712 INFO L793 eck$LassoCheckResult]: Loop: 11#L66-3true assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 12#L66-2true q1_#t~pre21 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre21; 11#L66-3true [2021-10-13 00:22:01,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:01,718 INFO L82 PathProgramCache]: Analyzing trace with hash 925670, now seen corresponding path program 1 times [2021-10-13 00:22:01,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:01,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877242928] [2021-10-13 00:22:01,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:01,731 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:01,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:01,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:01,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877242928] [2021-10-13 00:22:01,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877242928] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:01,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:01,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:22:01,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278919406] [2021-10-13 00:22:01,974 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:22:01,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:01,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1539, now seen corresponding path program 1 times [2021-10-13 00:22:01,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:01,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890649704] [2021-10-13 00:22:01,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:01,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:01,998 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:02,038 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:02,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:22:02,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:22:02,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:02,179 INFO L87 Difference]: Start difference. First operand has 27 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 26 states have internal predecessors, (44), 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, 2 states have (on average 2.0) 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) [2021-10-13 00:22:02,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:02,213 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2021-10-13 00:22:02,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:22:02,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-10-13 00:22:02,222 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-13 00:22:02,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 19 states and 25 transitions. [2021-10-13 00:22:02,228 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-13 00:22:02,229 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-10-13 00:22:02,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2021-10-13 00:22:02,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:22:02,231 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-13 00:22:02,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2021-10-13 00:22:02,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-10-13 00:22:02,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 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) [2021-10-13 00:22:02,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-10-13 00:22:02,262 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-10-13 00:22:02,262 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-10-13 00:22:02,262 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:22:02,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-10-13 00:22:02,265 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-13 00:22:02,266 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:22:02,266 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:22:02,267 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:22:02,267 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:22:02,268 INFO L791 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 61#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 64#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 65#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 77#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 76#L73 assume q1_#t~switch20;q1_~i~1 := 0; 71#L74-3 [2021-10-13 00:22:02,269 INFO L793 eck$LassoCheckResult]: Loop: 71#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 70#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 71#L74-3 [2021-10-13 00:22:02,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:02,270 INFO L82 PathProgramCache]: Analyzing trace with hash 889584664, now seen corresponding path program 1 times [2021-10-13 00:22:02,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:02,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339115173] [2021-10-13 00:22:02,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:02,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:02,312 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:02,364 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:02,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:02,367 INFO L82 PathProgramCache]: Analyzing trace with hash 2691, now seen corresponding path program 1 times [2021-10-13 00:22:02,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:02,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037532108] [2021-10-13 00:22:02,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:02,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:02,390 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:02,397 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:02,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:02,398 INFO L82 PathProgramCache]: Analyzing trace with hash 192371930, now seen corresponding path program 1 times [2021-10-13 00:22:02,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:02,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344371244] [2021-10-13 00:22:02,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:02,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:02,437 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:02,497 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:03,665 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:22:03,666 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:22:03,666 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:22:03,666 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:22:03,666 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:22:03,666 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:03,667 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:22:03,667 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:22:03,667 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubble_sort-1.c_Iteration2_Lasso [2021-10-13 00:22:03,667 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:22:03,667 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:22:03,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:03,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:04,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:04,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:04,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:04,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:04,400 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:22:04,404 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:22:04,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:04,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:04,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:04,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:22:04,413 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 [2021-10-13 00:22:04,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:04,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:04,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:04,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:04,429 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:04,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:04,434 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:04,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:04,473 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:04,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:04,475 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:04,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:22:04,497 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 [2021-10-13 00:22:04,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:04,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:22:04,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:04,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:04,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:04,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:22:04,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:22:04,525 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:04,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:04,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:04,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:04,560 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:04,566 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 [2021-10-13 00:22:04,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:04,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:22:04,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:04,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:04,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:04,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:22:04,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:22:04,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:22:04,578 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:04,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:04,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:04,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:04,618 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:04,625 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 [2021-10-13 00:22:04,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:04,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:04,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:04,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:04,638 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:04,638 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:04,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:22:04,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:04,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:04,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:04,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:04,700 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:04,705 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 [2021-10-13 00:22:04,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:04,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:04,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:04,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:04,718 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:04,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:04,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:22:04,737 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:04,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:04,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:04,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:04,773 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:04,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:22:04,775 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 [2021-10-13 00:22:04,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:04,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:22:04,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:04,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:04,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:04,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:22:04,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:22:04,809 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:04,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:04,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:04,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:04,849 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:04,854 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 [2021-10-13 00:22:04,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:04,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:22:04,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:04,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:04,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:04,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:22:04,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:22:04,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:22:04,885 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:04,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:04,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:04,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:04,923 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:04,929 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 [2021-10-13 00:22:04,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:22:04,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:04,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:22:04,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:04,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:04,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:04,938 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:22:04,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:22:04,940 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:04,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-13 00:22:04,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:04,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:04,964 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:04,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:22:04,966 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 [2021-10-13 00:22:04,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:04,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:04,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:04,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:04,993 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:04,993 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:05,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,041 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,051 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 [2021-10-13 00:22:05,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:22:05,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:22:05,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:22:05,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:22:05,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:05,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,100 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:22:05,103 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 [2021-10-13 00:22:05,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:05,116 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:05,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,183 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,193 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 [2021-10-13 00:22:05,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:22:05,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:22:05,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:22:05,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:22:05,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:05,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,258 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,264 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 [2021-10-13 00:22:05,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:22:05,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:22:05,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:22:05,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:22:05,289 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:05,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,315 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:22:05,319 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 [2021-10-13 00:22:05,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,331 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:05,331 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:05,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,386 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:22:05,388 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 [2021-10-13 00:22:05,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,398 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:05,398 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:05,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,440 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:22:05,443 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 [2021-10-13 00:22:05,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:05,453 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:05,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,516 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,522 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 [2021-10-13 00:22:05,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:22:05,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:05,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,552 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:05,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,589 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:22:05,597 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 [2021-10-13 00:22:05,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,608 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:05,608 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:05,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,650 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,655 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 [2021-10-13 00:22:05,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:22:05,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:05,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-10-13 00:22:05,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,696 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:22:05,705 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 [2021-10-13 00:22:05,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:05,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:05,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,773 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,776 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 [2021-10-13 00:22:05,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:05,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:22:05,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:05,844 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,850 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,852 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 [2021-10-13 00:22:05,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,864 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:05,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:22:05,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-13 00:22:05,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,907 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:22:05,908 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 [2021-10-13 00:22:05,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:05,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:05,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-13 00:22:05,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:05,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:05,947 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:05,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:22:05,962 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 [2021-10-13 00:22:05,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:05,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:05,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:05,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:05,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:05,975 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:05,993 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:22:06,025 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-13 00:22:06,026 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-10-13 00:22:06,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:06,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:06,040 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:06,042 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:22:06,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:22:06,098 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-13 00:22:06,098 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:22:06,099 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_q1_~i~1, v_rep(select #length ULTIMATE.start_q1_~#a~1.base)_1) = -4*ULTIMATE.start_q1_~i~1 + 1*v_rep(select #length ULTIMATE.start_q1_~#a~1.base)_1 Supporting invariants [1*ULTIMATE.start_q1_~#a~1.offset >= 0] [2021-10-13 00:22:06,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:06,219 INFO L297 tatePredicateManager]: 11 out of 12 supporting invariants were superfluous and have been removed [2021-10-13 00:22:06,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:06,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:22:06,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:22:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:06,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:22:06,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:22:06,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:06,374 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-13 00:22:06,375 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-10-13 00:22:06,437 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 28 states and 40 transitions. Complement of second has 8 states. [2021-10-13 00:22:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:22:06,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-10-13 00:22:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2021-10-13 00:22:06,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-13 00:22:06,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:22:06,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-13 00:22:06,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:22:06,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-13 00:22:06,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:22:06,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 40 transitions. [2021-10-13 00:22:06,445 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2021-10-13 00:22:06,446 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 26 states and 36 transitions. [2021-10-13 00:22:06,446 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2021-10-13 00:22:06,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-13 00:22:06,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 36 transitions. [2021-10-13 00:22:06,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:22:06,448 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-10-13 00:22:06,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 36 transitions. [2021-10-13 00:22:06,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2021-10-13 00:22:06,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.368421052631579) internal successors, (26), 18 states have internal predecessors, (26), 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) [2021-10-13 00:22:06,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2021-10-13 00:22:06,451 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-10-13 00:22:06,451 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-10-13 00:22:06,451 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:22:06,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2021-10-13 00:22:06,452 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-13 00:22:06,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:22:06,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:22:06,453 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:06,453 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:22:06,453 INFO L791 eck$LassoCheckResult]: Stem: 209#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 210#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 213#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 214#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 227#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 225#L73 assume !q1_#t~switch20; 211#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 212#L18-3 [2021-10-13 00:22:06,454 INFO L793 eck$LassoCheckResult]: Loop: 212#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 223#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 222#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 212#L18-3 [2021-10-13 00:22:06,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:06,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1807321784, now seen corresponding path program 1 times [2021-10-13 00:22:06,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:06,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241187121] [2021-10-13 00:22:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:06,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:06,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:06,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:06,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241187121] [2021-10-13 00:22:06,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241187121] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:06,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:06,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:22:06,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828594921] [2021-10-13 00:22:06,483 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:22:06,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:06,483 INFO L82 PathProgramCache]: Analyzing trace with hash 114407, now seen corresponding path program 1 times [2021-10-13 00:22:06,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:06,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072356850] [2021-10-13 00:22:06,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:06,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:06,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:06,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072356850] [2021-10-13 00:22:06,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072356850] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:06,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:06,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:22:06,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880715671] [2021-10-13 00:22:06,501 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:22:06,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:22:06,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:22:06,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:06,502 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:06,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:06,518 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2021-10-13 00:22:06,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:22:06,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2021-10-13 00:22:06,519 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-13 00:22:06,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 27 transitions. [2021-10-13 00:22:06,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-10-13 00:22:06,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-13 00:22:06,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-10-13 00:22:06,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:22:06,521 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-13 00:22:06,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-10-13 00:22:06,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-13 00:22:06,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:06,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-10-13 00:22:06,524 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-13 00:22:06,524 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-13 00:22:06,524 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:22:06,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-10-13 00:22:06,525 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-13 00:22:06,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:22:06,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:22:06,530 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:06,530 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:22:06,531 INFO L791 eck$LassoCheckResult]: Stem: 255#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 256#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 259#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 260#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 274#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 272#L73 assume !q1_#t~switch20; 257#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 258#L18-3 [2021-10-13 00:22:06,531 INFO L793 eck$LassoCheckResult]: Loop: 258#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 269#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 270#L23 assume !(bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size); 264#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 271#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 268#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 258#L18-3 [2021-10-13 00:22:06,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:06,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1807321784, now seen corresponding path program 2 times [2021-10-13 00:22:06,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:06,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677474855] [2021-10-13 00:22:06,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:06,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:06,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:06,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:06,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677474855] [2021-10-13 00:22:06,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677474855] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:06,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:06,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:22:06,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876824174] [2021-10-13 00:22:06,572 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:22:06,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:06,572 INFO L82 PathProgramCache]: Analyzing trace with hash -884895266, now seen corresponding path program 1 times [2021-10-13 00:22:06,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:06,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513131378] [2021-10-13 00:22:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:06,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:06,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:06,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:06,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513131378] [2021-10-13 00:22:06,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513131378] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:06,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:06,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:22:06,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751038476] [2021-10-13 00:22:06,588 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:22:06,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:22:06,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:22:06,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:06,589 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:06,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:06,627 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2021-10-13 00:22:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:22:06,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2021-10-13 00:22:06,628 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-13 00:22:06,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 27 transitions. [2021-10-13 00:22:06,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-13 00:22:06,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-10-13 00:22:06,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2021-10-13 00:22:06,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:22:06,629 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-10-13 00:22:06,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2021-10-13 00:22:06,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-10-13 00:22:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 states have internal predecessors, (26), 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) [2021-10-13 00:22:06,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-10-13 00:22:06,632 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-13 00:22:06,632 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-13 00:22:06,632 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:22:06,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2021-10-13 00:22:06,632 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-13 00:22:06,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:22:06,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:22:06,633 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:06,633 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:06,633 INFO L791 eck$LassoCheckResult]: Stem: 303#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 304#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 307#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 308#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 322#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 320#L73 assume !q1_#t~switch20; 305#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 306#L18-3 [2021-10-13 00:22:06,634 INFO L793 eck$LassoCheckResult]: Loop: 306#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 317#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 318#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 311#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 312#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 319#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 316#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 306#L18-3 [2021-10-13 00:22:06,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:06,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1807321784, now seen corresponding path program 3 times [2021-10-13 00:22:06,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:06,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877111262] [2021-10-13 00:22:06,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:06,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:06,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:06,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:06,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:06,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877111262] [2021-10-13 00:22:06,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877111262] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:06,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:06,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:22:06,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825155040] [2021-10-13 00:22:06,689 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:22:06,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:06,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1669532239, now seen corresponding path program 1 times [2021-10-13 00:22:06,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:06,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023099768] [2021-10-13 00:22:06,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:06,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:06,707 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:06,722 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:06,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:22:06,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:22:06,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:22:06,895 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:06,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:06,905 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2021-10-13 00:22:06,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:22:06,905 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 25 transitions. [2021-10-13 00:22:06,906 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-13 00:22:06,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 25 transitions. [2021-10-13 00:22:06,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-10-13 00:22:06,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-13 00:22:06,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2021-10-13 00:22:06,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:22:06,908 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-13 00:22:06,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2021-10-13 00:22:06,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-13 00:22:06,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 19 states have internal predecessors, (25), 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) [2021-10-13 00:22:06,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-10-13 00:22:06,910 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-13 00:22:06,910 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-13 00:22:06,910 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:22:06,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2021-10-13 00:22:06,911 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-13 00:22:06,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:22:06,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:22:06,912 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:06,912 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:22:06,912 INFO L791 eck$LassoCheckResult]: Stem: 349#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 350#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 353#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 354#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 368#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 366#L73 assume q1_#t~switch20;q1_~i~1 := 0; 367#L74-3 assume !(q1_~i~1 < q1_~N~0); 361#L74-4 q1_~i~1 := 0; 356#L76-3 [2021-10-13 00:22:06,912 INFO L793 eck$LassoCheckResult]: Loop: 356#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 355#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 356#L76-3 [2021-10-13 00:22:06,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:06,912 INFO L82 PathProgramCache]: Analyzing trace with hash 192371872, now seen corresponding path program 1 times [2021-10-13 00:22:06,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:06,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753261388] [2021-10-13 00:22:06,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:06,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:06,923 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:06,937 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:06,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:06,938 INFO L82 PathProgramCache]: Analyzing trace with hash 3139, now seen corresponding path program 1 times [2021-10-13 00:22:06,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:06,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647230996] [2021-10-13 00:22:06,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:06,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:06,943 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:22:06,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [747427622] [2021-10-13 00:22:06,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:06,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:22:06,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:06,945 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:22:06,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-13 00:22:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:06,997 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:07,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:07,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:07,009 INFO L82 PathProgramCache]: Analyzing trace with hash 185777442, now seen corresponding path program 1 times [2021-10-13 00:22:07,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:07,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484387600] [2021-10-13 00:22:07,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:07,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:07,017 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:22:07,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [240646338] [2021-10-13 00:22:07,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:07,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:22:07,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:07,021 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:22:07,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-13 00:22:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:07,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:22:07,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:22:07,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:07,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:07,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484387600] [2021-10-13 00:22:07,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:22:07,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240646338] [2021-10-13 00:22:07,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240646338] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:07,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:07,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:22:07,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430652889] [2021-10-13 00:22:07,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:22:07,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:22:07,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:22:07,358 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:07,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:07,421 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2021-10-13 00:22:07,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:22:07,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2021-10-13 00:22:07,425 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 23 [2021-10-13 00:22:07,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 41 states and 51 transitions. [2021-10-13 00:22:07,426 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2021-10-13 00:22:07,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2021-10-13 00:22:07,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2021-10-13 00:22:07,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:22:07,427 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-10-13 00:22:07,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2021-10-13 00:22:07,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 22. [2021-10-13 00:22:07,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:22:07,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-10-13 00:22:07,435 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-13 00:22:07,435 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-13 00:22:07,435 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 00:22:07,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2021-10-13 00:22:07,436 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-13 00:22:07,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:22:07,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:22:07,437 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:07,437 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:07,437 INFO L791 eck$LassoCheckResult]: Stem: 451#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 452#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 455#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 456#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 471#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 469#L73 assume q1_#t~switch20;q1_~i~1 := 0; 470#L74-3 assume !(q1_~i~1 < q1_~N~0); 463#L74-4 q1_~i~1 := 0; 464#L76-3 assume !(q1_~i~1 < q1_~N~0); 453#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 454#L18-3 [2021-10-13 00:22:07,438 INFO L793 eck$LassoCheckResult]: Loop: 454#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 467#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 468#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 459#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 460#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 466#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 465#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 454#L18-3 [2021-10-13 00:22:07,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:07,438 INFO L82 PathProgramCache]: Analyzing trace with hash 185777387, now seen corresponding path program 1 times [2021-10-13 00:22:07,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:07,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832924209] [2021-10-13 00:22:07,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:07,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:07,452 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:07,472 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:07,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:07,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1669532239, now seen corresponding path program 2 times [2021-10-13 00:22:07,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:07,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866796248] [2021-10-13 00:22:07,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:07,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:07,480 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:07,487 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:07,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:07,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1443775097, now seen corresponding path program 1 times [2021-10-13 00:22:07,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:07,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43541132] [2021-10-13 00:22:07,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:07,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:07,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 00:22:07,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:07,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43541132] [2021-10-13 00:22:07,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43541132] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:22:07,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:22:07,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:22:07,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516088870] [2021-10-13 00:22:07,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:22:07,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:22:07,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:22:07,702 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-13 00:22:07,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:07,764 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2021-10-13 00:22:07,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:22:07,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2021-10-13 00:22:07,765 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-13 00:22:07,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 23 states and 27 transitions. [2021-10-13 00:22:07,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-13 00:22:07,766 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-13 00:22:07,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 27 transitions. [2021-10-13 00:22:07,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:22:07,767 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-10-13 00:22:07,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 27 transitions. [2021-10-13 00:22:07,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-10-13 00:22:07,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 20 states have internal predecessors, (25), 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) [2021-10-13 00:22:07,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-10-13 00:22:07,769 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-10-13 00:22:07,769 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-10-13 00:22:07,769 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 00:22:07,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 25 transitions. [2021-10-13 00:22:07,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-13 00:22:07,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:22:07,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:22:07,770 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:07,771 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:22:07,771 INFO L791 eck$LassoCheckResult]: Stem: 514#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 515#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 518#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 519#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 534#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 532#L73 assume q1_#t~switch20;q1_~i~1 := 0; 533#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 524#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 525#L74-3 assume !(q1_~i~1 < q1_~N~0); 526#L74-4 q1_~i~1 := 0; 527#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 520#L76-2 [2021-10-13 00:22:07,771 INFO L793 eck$LassoCheckResult]: Loop: 520#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 521#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 520#L76-2 [2021-10-13 00:22:07,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:07,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1465845666, now seen corresponding path program 1 times [2021-10-13 00:22:07,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:07,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789128788] [2021-10-13 00:22:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:07,772 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:07,803 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:22:07,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [62724841] [2021-10-13 00:22:07,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:07,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:22:07,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:07,809 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:22:07,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-13 00:22:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:07,886 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:07,918 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:07,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:07,919 INFO L82 PathProgramCache]: Analyzing trace with hash 3199, now seen corresponding path program 2 times [2021-10-13 00:22:07,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:07,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262007957] [2021-10-13 00:22:07,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:07,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:07,922 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:22:07,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264172605] [2021-10-13 00:22:07,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:22:07,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:22:07,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:07,927 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:22:07,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-13 00:22:07,982 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 00:22:07,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-13 00:22:07,982 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:08,000 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:08,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:08,001 INFO L82 PathProgramCache]: Analyzing trace with hash -71585824, now seen corresponding path program 1 times [2021-10-13 00:22:08,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:08,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922650934] [2021-10-13 00:22:08,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:08,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:08,015 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:22:08,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1424639909] [2021-10-13 00:22:08,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:08,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:22:08,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:08,022 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:22:08,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-13 00:22:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:08,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:22:08,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:22:08,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:08,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:08,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922650934] [2021-10-13 00:22:08,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:22:08,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424639909] [2021-10-13 00:22:08,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424639909] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:22:08,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:22:08,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-13 00:22:08,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166503953] [2021-10-13 00:22:08,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:22:08,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:22:08,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:22:08,380 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. cyclomatic complexity: 7 Second operand has 7 states, 6 states have (on average 2.1666666666666665) 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) [2021-10-13 00:22:08,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:08,466 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2021-10-13 00:22:08,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:22:08,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 57 transitions. [2021-10-13 00:22:08,467 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 23 [2021-10-13 00:22:08,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 47 states and 57 transitions. [2021-10-13 00:22:08,468 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-10-13 00:22:08,468 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2021-10-13 00:22:08,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 57 transitions. [2021-10-13 00:22:08,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:22:08,469 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 57 transitions. [2021-10-13 00:22:08,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 57 transitions. [2021-10-13 00:22:08,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2021-10-13 00:22:08,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 26 states have internal predecessors, (32), 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) [2021-10-13 00:22:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2021-10-13 00:22:08,473 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-10-13 00:22:08,473 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-10-13 00:22:08,473 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-13 00:22:08,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2021-10-13 00:22:08,474 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-13 00:22:08,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:22:08,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:22:08,474 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:08,474 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:22:08,475 INFO L791 eck$LassoCheckResult]: Stem: 636#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 637#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 640#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 641#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 657#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 655#L73 assume q1_#t~switch20;q1_~i~1 := 0; 656#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 646#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 647#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 658#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 662#L74-3 assume !(q1_~i~1 < q1_~N~0); 661#L74-4 q1_~i~1 := 0; 650#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 642#L76-2 [2021-10-13 00:22:08,475 INFO L793 eck$LassoCheckResult]: Loop: 642#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 643#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 642#L76-2 [2021-10-13 00:22:08,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:08,476 INFO L82 PathProgramCache]: Analyzing trace with hash -69873632, now seen corresponding path program 2 times [2021-10-13 00:22:08,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:08,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738298689] [2021-10-13 00:22:08,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:08,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:08,484 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:22:08,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261758337] [2021-10-13 00:22:08,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:22:08,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:22:08,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:08,497 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:22:08,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-13 00:22:08,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:22:08,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-13 00:22:08,577 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:08,606 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:08,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:08,607 INFO L82 PathProgramCache]: Analyzing trace with hash 3199, now seen corresponding path program 3 times [2021-10-13 00:22:08,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:08,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424445338] [2021-10-13 00:22:08,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:08,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:08,610 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:22:08,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [816711316] [2021-10-13 00:22:08,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:22:08,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:22:08,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:08,618 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:22:08,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-13 00:22:08,671 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-13 00:22:08,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-13 00:22:08,672 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:08,686 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:08,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:08,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1570918622, now seen corresponding path program 2 times [2021-10-13 00:22:08,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:08,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887550541] [2021-10-13 00:22:08,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:08,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:08,695 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:22:08,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512437518] [2021-10-13 00:22:08,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:22:08,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:22:08,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:08,701 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:22:08,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-13 00:22:08,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:22:08,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-13 00:22:08,785 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:08,819 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:11,428 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:22:11,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:22:11,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:22:11,428 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:22:11,428 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:22:11,428 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:11,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:22:11,428 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:22:11,428 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubble_sort-1.c_Iteration9_Lasso [2021-10-13 00:22:11,428 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:22:11,429 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:22:11,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:11,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:11,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:11,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:11,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:12,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:12,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:12,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:12,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:12,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:12,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:12,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:12,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:12,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:12,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:12,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:12,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:22:13,458 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:22:13,458 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:22:13,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:13,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:13,461 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:13,467 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 [2021-10-13 00:22:13,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:13,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:13,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:13,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:13,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:13,478 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:13,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 00:22:13,505 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:13,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-13 00:22:13,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:13,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:13,527 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:13,528 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 [2021-10-13 00:22:13,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 00:22:13,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:13,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:13,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:13,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:13,538 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:13,538 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:13,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:13,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:13,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:13,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:13,576 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:13,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 00:22:13,578 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 [2021-10-13 00:22:13,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:13,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:22:13,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:13,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:13,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:13,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:22:13,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:22:13,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:13,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:13,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:13,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:13,618 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:13,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 00:22:13,620 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 [2021-10-13 00:22:13,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:13,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:13,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:13,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:13,628 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:13,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:13,630 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:13,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:13,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:13,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:13,654 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:13,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 00:22:13,656 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 [2021-10-13 00:22:13,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:13,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:13,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:13,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:13,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:13,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:13,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:13,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-13 00:22:13,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:13,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:13,696 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:13,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 00:22:13,708 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 [2021-10-13 00:22:13,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:13,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:13,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:13,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:13,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:13,717 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:13,720 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:13,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:13,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:13,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:13,753 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:13,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 00:22:13,754 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 [2021-10-13 00:22:13,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:13,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:13,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:13,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:13,763 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:13,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:13,765 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:13,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-13 00:22:13,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:13,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:13,786 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:13,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-13 00:22:13,787 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 [2021-10-13 00:22:13,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:13,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:13,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:13,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:13,796 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:13,797 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:13,799 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:13,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:13,819 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:13,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:13,820 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:13,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-13 00:22:13,822 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 [2021-10-13 00:22:13,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:13,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:22:13,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:22:13,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:13,830 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:22:13,830 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:22:13,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:22:13,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:13,853 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:13,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:13,854 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:13,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-13 00:22:13,856 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 [2021-10-13 00:22:13,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:22:13,864 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-13 00:22:13,864 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2021-10-13 00:22:13,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:22:13,903 INFO L401 nArgumentSynthesizer]: We have 36 Motzkin's Theorem applications. [2021-10-13 00:22:13,904 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-10-13 00:22:14,024 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:22:14,155 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2021-10-13 00:22:14,155 INFO L444 ModelExtractionUtils]: 39 out of 57 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-10-13 00:22:14,155 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:22:14,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:14,158 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:22:14,160 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:22:14,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-13 00:22:14,184 INFO L438 nArgumentSynthesizer]: Removed 6 redundant supporting invariants from a total of 6. [2021-10-13 00:22:14,184 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:22:14,184 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_q1_~N~0, ULTIMATE.start_q1_~i~1) = 1*ULTIMATE.start_q1_~N~0 - 1*ULTIMATE.start_q1_~i~1 Supporting invariants [] [2021-10-13 00:22:14,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:14,245 INFO L297 tatePredicateManager]: 12 out of 12 supporting invariants were superfluous and have been removed [2021-10-13 00:22:14,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:14,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:22:14,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:22:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:14,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:22:14,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:22:14,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:22:14,364 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 [2021-10-13 00:22:14,364 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-10-13 00:22:14,385 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) Result 38 states and 48 transitions. Complement of second has 4 states. [2021-10-13 00:22:14,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:22:14,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-10-13 00:22:14,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2021-10-13 00:22:14,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 13 letters. Loop has 2 letters. [2021-10-13 00:22:14,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:22:14,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 15 letters. Loop has 2 letters. [2021-10-13 00:22:14,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:22:14,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 13 letters. Loop has 4 letters. [2021-10-13 00:22:14,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:22:14,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2021-10-13 00:22:14,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 00:22:14,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 29 states and 35 transitions. [2021-10-13 00:22:14,389 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-13 00:22:14,389 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2021-10-13 00:22:14,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 35 transitions. [2021-10-13 00:22:14,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:22:14,390 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-13 00:22:14,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 35 transitions. [2021-10-13 00:22:14,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2021-10-13 00:22:14,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 27 states have internal predecessors, (34), 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) [2021-10-13 00:22:14,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2021-10-13 00:22:14,392 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-10-13 00:22:14,392 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-10-13 00:22:14,392 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-13 00:22:14,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 34 transitions. [2021-10-13 00:22:14,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 00:22:14,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:22:14,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:22:14,394 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:14,394 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:14,394 INFO L791 eck$LassoCheckResult]: Stem: 814#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 815#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 818#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 819#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 836#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 834#L73 assume q1_#t~switch20;q1_~i~1 := 0; 835#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 837#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 838#L74-3 assume !(q1_~i~1 < q1_~N~0); 828#L74-4 q1_~i~1 := 0; 829#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 820#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 821#L76-3 assume !(q1_~i~1 < q1_~N~0); 816#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 817#L18-3 [2021-10-13 00:22:14,394 INFO L793 eck$LassoCheckResult]: Loop: 817#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 831#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 832#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 824#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 825#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 833#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 830#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 817#L18-3 [2021-10-13 00:22:14,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:14,395 INFO L82 PathProgramCache]: Analyzing trace with hash 2075806767, now seen corresponding path program 1 times [2021-10-13 00:22:14,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:14,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677013129] [2021-10-13 00:22:14,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:14,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:14,403 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:22:14,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861280956] [2021-10-13 00:22:14,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:14,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:22:14,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:14,404 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:22:14,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-13 00:22:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:14,486 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:14,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:14,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:14,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1669532239, now seen corresponding path program 3 times [2021-10-13 00:22:14,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:14,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265521368] [2021-10-13 00:22:14,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:14,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:14,520 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:14,526 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:14,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:14,527 INFO L82 PathProgramCache]: Analyzing trace with hash -548718141, now seen corresponding path program 1 times [2021-10-13 00:22:14,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:14,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118879068] [2021-10-13 00:22:14,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:14,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:14,534 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:22:14,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [212294236] [2021-10-13 00:22:14,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:14,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:22:14,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:14,537 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:22:14,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-13 00:22:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:22:14,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:22:14,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:22:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:22:14,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:22:14,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118879068] [2021-10-13 00:22:14,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:22:14,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212294236] [2021-10-13 00:22:14,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212294236] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:22:14,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:22:14,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-13 00:22:14,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864191448] [2021-10-13 00:22:14,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:14,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:22:14,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:22:14,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:22:14,911 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. cyclomatic complexity: 9 Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-10-13 00:22:15,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:22:15,000 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2021-10-13 00:22:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:22:15,001 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 41 transitions. [2021-10-13 00:22:15,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 00:22:15,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 28 states and 33 transitions. [2021-10-13 00:22:15,002 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-13 00:22:15,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-10-13 00:22:15,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 33 transitions. [2021-10-13 00:22:15,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:22:15,003 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-10-13 00:22:15,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 33 transitions. [2021-10-13 00:22:15,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2021-10-13 00:22:15,004 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) [2021-10-13 00:22:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-10-13 00:22:15,005 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-10-13 00:22:15,005 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-10-13 00:22:15,005 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-13 00:22:15,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 29 transitions. [2021-10-13 00:22:15,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 00:22:15,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:22:15,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:22:15,006 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:15,006 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:22:15,007 INFO L791 eck$LassoCheckResult]: Stem: 954#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 955#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 958#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 959#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 976#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 974#L73 assume q1_#t~switch20;q1_~i~1 := 0; 975#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 966#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 967#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 977#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 978#L74-3 assume !(q1_~i~1 < q1_~N~0); 968#L74-4 q1_~i~1 := 0; 969#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 960#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 961#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 962#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 963#L76-3 assume !(q1_~i~1 < q1_~N~0); 956#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 957#L18-3 [2021-10-13 00:22:15,007 INFO L793 eck$LassoCheckResult]: Loop: 957#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 971#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 972#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 964#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 965#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 973#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 970#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 957#L18-3 [2021-10-13 00:22:15,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:15,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1273080179, now seen corresponding path program 2 times [2021-10-13 00:22:15,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:15,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305105932] [2021-10-13 00:22:15,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:15,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:15,016 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:22:15,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64716910] [2021-10-13 00:22:15,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:22:15,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:22:15,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:15,018 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:22:15,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-13 00:22:15,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:22:15,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-13 00:22:15,108 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:15,146 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:15,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:15,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1669532239, now seen corresponding path program 4 times [2021-10-13 00:22:15,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:15,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337893081] [2021-10-13 00:22:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:15,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:15,153 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:15,173 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:15,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:22:15,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1247881215, now seen corresponding path program 2 times [2021-10-13 00:22:15,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:22:15,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235371565] [2021-10-13 00:22:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:22:15,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:22:15,188 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:22:15,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1819070298] [2021-10-13 00:22:15,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:22:15,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:22:15,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:22:15,194 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:22:15,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-13 00:22:15,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:22:15,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-13 00:22:15,293 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:22:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:22:15,332 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:22:19,588 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 132529 column 2255: unknown constant v_ULTIMATE.start_q1_#t~nondet25_17 at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:237) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:256) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.assertTerm(ManagedScript.java:133) at de.uni_freiburg.informatik.ultimate.lassoranker.nontermination.FixpointCheck.checkForFixpoint(FixpointCheck.java:100) at de.uni_freiburg.informatik.ultimate.lassoranker.nontermination.FixpointCheck.(FixpointCheck.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:560) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 00:22:19,592 INFO L168 Benchmark]: Toolchain (without parser) took 18974.72 ms. Allocated memory was 102.8 MB in the beginning and 205.5 MB in the end (delta: 102.8 MB). Free memory was 69.7 MB in the beginning and 97.7 MB in the end (delta: -28.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:19,593 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory is still 55.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:22:19,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.75 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 69.4 MB in the beginning and 114.6 MB in the end (delta: -45.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:19,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.37 ms. Allocated memory is still 140.5 MB. Free memory was 114.6 MB in the beginning and 113.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:19,594 INFO L168 Benchmark]: Boogie Preprocessor took 68.36 ms. Allocated memory is still 140.5 MB. Free memory was 113.2 MB in the beginning and 111.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:22:19,594 INFO L168 Benchmark]: RCFGBuilder took 434.35 ms. Allocated memory is still 140.5 MB. Free memory was 111.8 MB in the beginning and 98.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:19,594 INFO L168 Benchmark]: BuchiAutomizer took 18096.16 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 98.5 MB in the beginning and 97.7 MB in the end (delta: 832.6 kB). Peak memory consumption was 111.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:22:19,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory is still 55.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.75 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 69.4 MB in the beginning and 114.6 MB in the end (delta: -45.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.37 ms. Allocated memory is still 140.5 MB. Free memory was 114.6 MB in the beginning and 113.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.36 ms. Allocated memory is still 140.5 MB. Free memory was 113.2 MB in the beginning and 111.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 434.35 ms. Allocated memory is still 140.5 MB. Free memory was 111.8 MB in the beginning and 98.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 18096.16 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 98.5 MB in the beginning and 97.7 MB in the end (delta: 832.6 kB). Peak memory consumption was 111.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: SMTLIBException: line 132529 column 2255: unknown constant v_ULTIMATE.start_q1_#t~nondet25_17 de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: SMTLIBException: line 132529 column 2255: unknown constant v_ULTIMATE.start_q1_#t~nondet25_17: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 00:22:19,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:19,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2021-10-13 00:22:20,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2021-10-13 00:22:20,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2021-10-13 00:22:20,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-10-13 00:22:20,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:20,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-10-13 00:22:21,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-10-13 00:22:21,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:21,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-10-13 00:22:21,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:22:21,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-10-13 00:22:22,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6797195-edb8-416e-829c-f17f44ae3e9d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 1 Received shutdown request...