./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/list-ext-properties/simple-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/list-ext-properties/simple-ext.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --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 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:31:58,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:31:58,898 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-28 20:31:58,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:31:58,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:31:58,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:31:58,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:31:58,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:31:58,930 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:31:58,930 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:31:58,931 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:31:58,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:31:58,932 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:31:58,933 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-28 20:31:58,933 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-28 20:31:58,934 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-28 20:31:58,934 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-28 20:31:58,935 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-28 20:31:58,935 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-28 20:31:58,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:31:58,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-28 20:31:58,938 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:31:58,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:31:58,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:31:58,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:31:58,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-28 20:31:58,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-28 20:31:58,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-28 20:31:58,940 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:31:58,941 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:31:58,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:31:58,941 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-28 20:31:58,942 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:31:58,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:31:58,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:31:58,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:31:58,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:31:58,943 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-28 20:31:58,943 INFO L153 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_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 [2023-11-28 20:31:59,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:31:59,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:31:59,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:31:59,197 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:31:59,197 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:31:59,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/list-ext-properties/simple-ext.i [2023-11-28 20:32:01,972 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:32:02,195 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:32:02,195 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/sv-benchmarks/c/list-ext-properties/simple-ext.i [2023-11-28 20:32:02,210 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/data/04b742222/b48a5880c4964f7cad5f5c91305a4547/FLAG1b491931c [2023-11-28 20:32:02,225 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/data/04b742222/b48a5880c4964f7cad5f5c91305a4547 [2023-11-28 20:32:02,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:32:02,229 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:32:02,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:32:02,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:32:02,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:32:02,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e54657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02, skipping insertion in model container [2023-11-28 20:32:02,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,291 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:32:02,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:32:02,590 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:32:02,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:32:02,663 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:32:02,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02 WrapperNode [2023-11-28 20:32:02,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:32:02,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:32:02,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:32:02,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:32:02,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,706 INFO L138 Inliner]: procedures = 124, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2023-11-28 20:32:02,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:32:02,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:32:02,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:32:02,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:32:02,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,723 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,738 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2023-11-28 20:32:02,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:32:02,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:32:02,758 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:32:02,758 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:32:02,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (1/1) ... [2023-11-28 20:32:02,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:02,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:02,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:02,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-28 20:32:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-28 20:32:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-28 20:32:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-28 20:32:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-28 20:32:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 20:32:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:32:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-28 20:32:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-28 20:32:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-28 20:32:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-28 20:32:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:32:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:32:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 20:32:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:32:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:32:02,944 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:32:02,946 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:32:03,097 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:32:03,106 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:32:03,106 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-28 20:32:03,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:32:03 BoogieIcfgContainer [2023-11-28 20:32:03,108 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:32:03,109 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-28 20:32:03,110 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-28 20:32:03,113 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-28 20:32:03,113 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 20:32:03,114 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:32:02" (1/3) ... [2023-11-28 20:32:03,115 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58615d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:32:03, skipping insertion in model container [2023-11-28 20:32:03,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 20:32:03,115 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:02" (2/3) ... [2023-11-28 20:32:03,115 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58615d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:32:03, skipping insertion in model container [2023-11-28 20:32:03,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 20:32:03,116 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:32:03" (3/3) ... [2023-11-28 20:32:03,117 INFO L332 chiAutomizerObserver]: Analyzing ICFG simple-ext.i [2023-11-28 20:32:03,166 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-28 20:32:03,167 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-28 20:32:03,167 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-28 20:32:03,167 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-28 20:32:03,167 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-28 20:32:03,167 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-28 20:32:03,168 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-28 20:32:03,168 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-28 20:32:03,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 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) [2023-11-28 20:32:03,189 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 14 [2023-11-28 20:32:03,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:32:03,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:32:03,194 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-28 20:32:03,194 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-28 20:32:03,195 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-28 20:32:03,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 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) [2023-11-28 20:32:03,197 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 14 [2023-11-28 20:32:03,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:32:03,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:32:03,198 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-28 20:32:03,198 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-28 20:32:03,204 INFO L748 eck$LassoCheckResult]: Stem: 17#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~mem7#1.base, main_#t~mem7#1.offset, main_#t~post8#1, main_#t~nondet4#1, main_#t~short5#1, main_#t~mem9#1, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~post11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset, main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, main_~p~0#1.offset, main_~i~0#1;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(8);main_~a~0#1.base, main_~a~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 11#L533true assume main_~a~0#1.base == 0 && main_~a~0#1.offset == 0;assume { :begin_inline_myexit } true;myexit_#in~s#1 := 1;havoc myexit_~s#1;myexit_~s#1 := myexit_#in~s#1; 2#L525true [2023-11-28 20:32:03,204 INFO L750 eck$LassoCheckResult]: Loop: 2#L525true assume true; 2#L525true [2023-11-28 20:32:03,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:03,210 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-28 20:32:03,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:03,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392590696] [2023-11-28 20:32:03,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:03,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:03,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:03,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:03,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392590696] [2023-11-28 20:32:03,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392590696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:32:03,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:32:03,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:32:03,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779417791] [2023-11-28 20:32:03,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:32:03,368 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-28 20:32:03,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:03,369 INFO L85 PathProgramCache]: Analyzing trace with hash 115, now seen corresponding path program 1 times [2023-11-28 20:32:03,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:03,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448137538] [2023-11-28 20:32:03,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:03,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:03,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:03,386 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:03,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:03,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:32:03,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:32:03,425 INFO L87 Difference]: Start difference. First operand has 24 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2023-11-28 20:32:03,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:03,444 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2023-11-28 20:32:03,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2023-11-28 20:32:03,447 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2023-11-28 20:32:03,451 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 16 states and 20 transitions. [2023-11-28 20:32:03,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-28 20:32:03,452 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-11-28 20:32:03,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2023-11-28 20:32:03,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:32:03,453 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2023-11-28 20:32:03,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2023-11-28 20:32:03,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-28 20:32:03,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 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) [2023-11-28 20:32:03,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2023-11-28 20:32:03,475 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2023-11-28 20:32:03,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:32:03,479 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2023-11-28 20:32:03,479 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-28 20:32:03,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2023-11-28 20:32:03,481 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2023-11-28 20:32:03,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:32:03,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:32:03,481 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-28 20:32:03,482 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-28 20:32:03,482 INFO L748 eck$LassoCheckResult]: Stem: 67#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 63#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~mem7#1.base, main_#t~mem7#1.offset, main_#t~post8#1, main_#t~nondet4#1, main_#t~short5#1, main_#t~mem9#1, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~post11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset, main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, main_~p~0#1.offset, main_~i~0#1;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(8);main_~a~0#1.base, main_~a~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 64#L533 assume !(main_~a~0#1.base == 0 && main_~a~0#1.offset == 0); 65#L533-1 havoc main_~t~0#1.base, main_~t~0#1.offset;main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 56#L537-5 [2023-11-28 20:32:03,482 INFO L750 eck$LassoCheckResult]: Loop: 56#L537-5 main_#t~short5#1 := main_~i~0#1 < 30; 58#L537-1 assume main_#t~short5#1;havoc main_#t~nondet4#1;main_#t~short5#1 := 0 != main_#t~nondet4#1; 59#L537-3 assume !!main_#t~short5#1;havoc main_#t~nondet4#1;havoc main_#t~short5#1;call write~int#1(main_~i~0#1, main_~p~0#1.base, main_~p~0#1.offset, 4);call main_#t~malloc6#1.base, main_#t~malloc6#1.offset := #Ultimate.allocOnHeap(8);main_~t~0#1.base, main_~t~0#1.offset := main_#t~malloc6#1.base, main_#t~malloc6#1.offset;havoc main_#t~malloc6#1.base, main_#t~malloc6#1.offset; 61#L540 assume !(main_~t~0#1.base == 0 && main_~t~0#1.offset == 0); 55#L540-1 call write~$Pointer$#1(main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);call main_#t~mem7#1.base, main_#t~mem7#1.offset := read~$Pointer$#1(main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_#t~mem7#1.base, main_#t~mem7#1.offset;havoc main_#t~mem7#1.base, main_#t~mem7#1.offset;main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 56#L537-5 [2023-11-28 20:32:03,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:03,483 INFO L85 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2023-11-28 20:32:03,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:03,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280042388] [2023-11-28 20:32:03,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:03,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:03,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:03,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:03,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:03,520 INFO L85 PathProgramCache]: Analyzing trace with hash 43044216, now seen corresponding path program 1 times [2023-11-28 20:32:03,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:03,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282610106] [2023-11-28 20:32:03,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:03,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:03,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:03,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:03,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:03,586 INFO L85 PathProgramCache]: Analyzing trace with hash 2099908596, now seen corresponding path program 1 times [2023-11-28 20:32:03,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:03,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949958779] [2023-11-28 20:32:03,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:03,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:03,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:03,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:04,376 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:32:04,376 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:32:04,376 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:32:04,377 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:32:04,377 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:32:04,377 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:04,377 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:32:04,377 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:32:04,377 INFO L133 ssoRankerPreferences]: Filename of dumped script: simple-ext.i_Iteration2_Lasso [2023-11-28 20:32:04,377 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:32:04,378 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:32:04,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,404 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,417 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,430 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,447 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,450 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,457 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,459 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,461 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:04,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:32:05,169 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:32:05,173 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:32:05,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,177 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-28 20:32:05,182 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 [2023-11-28 20:32:05,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:32:05,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,207 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-28 20:32:05,210 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 [2023-11-28 20:32:05,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,230 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-28 20:32:05,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,235 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-28 20:32:05,237 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 [2023-11-28 20:32:05,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-28 20:32:05,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,257 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-28 20:32:05,261 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 [2023-11-28 20:32:05,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-28 20:32:05,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,282 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-28 20:32:05,285 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 [2023-11-28 20:32:05,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,301 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-28 20:32:05,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,306 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-28 20:32:05,309 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 [2023-11-28 20:32:05,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,327 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:32:05,327 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:32:05,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-28 20:32:05,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,337 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-28 20:32:05,341 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 [2023-11-28 20:32:05,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-28 20:32:05,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,360 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,363 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 [2023-11-28 20:32:05,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-28 20:32:05,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,375 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,376 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,376 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,377 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-28 20:32:05,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,383 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-28 20:32:05,390 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 [2023-11-28 20:32:05,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,403 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-28 20:32:05,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,407 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-28 20:32:05,409 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 [2023-11-28 20:32:05,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-28 20:32:05,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,430 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-28 20:32:05,432 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 [2023-11-28 20:32:05,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-28 20:32:05,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,451 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-28 20:32:05,454 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 [2023-11-28 20:32:05,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,469 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-28 20:32:05,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,473 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-28 20:32:05,477 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 [2023-11-28 20:32:05,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,496 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-28 20:32:05,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,502 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-28 20:32:05,505 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 [2023-11-28 20:32:05,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,520 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-28 20:32:05,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,525 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-28 20:32:05,531 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 [2023-11-28 20:32:05,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:32:05,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:32:05,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-28 20:32:05,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,556 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-28 20:32:05,559 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 [2023-11-28 20:32:05,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,573 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:32:05,573 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:32:05,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-28 20:32:05,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,582 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-28 20:32:05,584 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 [2023-11-28 20:32:05,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-28 20:32:05,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,602 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-28 20:32:05,605 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 [2023-11-28 20:32:05,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,617 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:32:05,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:32:05,622 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-28 20:32:05,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,627 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-28 20:32:05,633 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 [2023-11-28 20:32:05,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-28 20:32:05,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,649 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-28 20:32:05,651 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 [2023-11-28 20:32:05,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:32:05,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:32:05,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-28 20:32:05,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,673 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-28 20:32:05,675 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 [2023-11-28 20:32:05,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-11-28 20:32:05,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,691 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-28 20:32:05,697 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 [2023-11-28 20:32:05,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-28 20:32:05,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,722 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-28 20:32:05,725 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 [2023-11-28 20:32:05,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-28 20:32:05,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,744 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-28 20:32:05,748 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 [2023-11-28 20:32:05,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-28 20:32:05,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,768 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-28 20:32:05,771 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 [2023-11-28 20:32:05,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:32:05,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:32:05,791 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-28 20:32:05,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,796 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-28 20:32:05,799 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 [2023-11-28 20:32:05,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-28 20:32:05,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,821 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-28 20:32:05,824 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 [2023-11-28 20:32:05,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-28 20:32:05,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,844 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-28 20:32:05,847 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 [2023-11-28 20:32:05,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-28 20:32:05,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,863 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-28 20:32:05,866 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 [2023-11-28 20:32:05,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,879 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,882 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-28 20:32:05,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,886 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-28 20:32:05,888 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 [2023-11-28 20:32:05,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,902 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2023-11-28 20:32:05,902 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:32:05,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,917 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2023-11-28 20:32:05,917 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-28 20:32:05,943 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-28 20:32:05,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,947 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-28 20:32:05,950 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 [2023-11-28 20:32:05,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,966 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:32:05,966 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:32:05,971 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-28 20:32:05,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,976 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:05,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-28 20:32:05,979 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 [2023-11-28 20:32:05,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:05,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:32:05,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:05,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:05,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:05,993 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:32:05,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:32:05,994 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:05,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-28 20:32:05,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:05,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:05,999 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:06,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-28 20:32:06,001 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 [2023-11-28 20:32:06,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:06,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:06,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:06,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:06,016 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:32:06,016 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:32:06,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:06,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-11-28 20:32:06,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:06,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:06,025 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:06,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-28 20:32:06,029 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 [2023-11-28 20:32:06,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:06,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:06,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:06,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:06,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:32:06,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:32:06,048 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:06,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-28 20:32:06,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:06,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:06,053 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:06,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-28 20:32:06,056 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 [2023-11-28 20:32:06,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:06,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:06,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:06,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:06,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:32:06,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:32:06,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:06,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-11-28 20:32:06,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:06,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:06,086 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:06,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-28 20:32:06,089 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 [2023-11-28 20:32:06,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:06,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:06,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:06,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:06,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:32:06,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:32:06,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:32:06,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-11-28 20:32:06,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:06,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:06,114 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:06,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-28 20:32:06,117 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 [2023-11-28 20:32:06,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:32:06,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:32:06,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:32:06,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:32:06,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:32:06,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:32:06,139 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 20:32:06,153 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-11-28 20:32:06,154 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-28 20:32:06,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:32:06,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:06,189 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:32:06,192 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 20:32:06,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-28 20:32:06,207 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-28 20:32:06,207 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 20:32:06,208 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 59 Supporting invariants [] [2023-11-28 20:32:06,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2023-11-28 20:32:06,232 INFO L156 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2023-11-28 20:32:06,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2023-11-28 20:32:06,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:06,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:32:06,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:32:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:06,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:32:06,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:32:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:06,409 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-28 20:32:06,411 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:32:06,482 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 35 transitions. Complement of second has 9 states. [2023-11-28 20:32:06,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-28 20:32:06,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:32:06,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2023-11-28 20:32:06,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 5 letters. [2023-11-28 20:32:06,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:32:06,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 9 letters. Loop has 5 letters. [2023-11-28 20:32:06,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:32:06,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 10 letters. [2023-11-28 20:32:06,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:32:06,487 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2023-11-28 20:32:06,489 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2023-11-28 20:32:06,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 23 states and 30 transitions. [2023-11-28 20:32:06,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-28 20:32:06,490 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-11-28 20:32:06,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2023-11-28 20:32:06,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:32:06,490 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 30 transitions. [2023-11-28 20:32:06,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2023-11-28 20:32:06,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2023-11-28 20:32:06,492 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) [2023-11-28 20:32:06,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2023-11-28 20:32:06,493 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2023-11-28 20:32:06,493 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2023-11-28 20:32:06,494 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-28 20:32:06,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2023-11-28 20:32:06,495 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2023-11-28 20:32:06,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:32:06,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:32:06,495 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:06,495 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-28 20:32:06,496 INFO L748 eck$LassoCheckResult]: Stem: 188#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 183#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~mem7#1.base, main_#t~mem7#1.offset, main_#t~post8#1, main_#t~nondet4#1, main_#t~short5#1, main_#t~mem9#1, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~post11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset, main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, main_~p~0#1.offset, main_~i~0#1;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(8);main_~a~0#1.base, main_~a~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 184#L533 assume !(main_~a~0#1.base == 0 && main_~a~0#1.offset == 0); 185#L533-1 havoc main_~t~0#1.base, main_~t~0#1.offset;main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 186#L537-5 main_#t~short5#1 := main_~i~0#1 < 30; 176#L537-1 assume !main_#t~short5#1; 177#L537-3 assume !main_#t~short5#1;havoc main_#t~nondet4#1;havoc main_#t~short5#1; 180#L537-6 call write~int#1(main_~i~0#1, main_~p~0#1.base, main_~p~0#1.offset, 4);call write~$Pointer$#1(0, 0, main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 189#L549-2 [2023-11-28 20:32:06,496 INFO L750 eck$LassoCheckResult]: Loop: 189#L549-2 assume !!(main_~p~0#1.base != 0 || main_~p~0#1.offset != 0);call main_#t~mem9#1 := read~int#1(main_~p~0#1.base, main_~p~0#1.offset, 4); 190#L550 assume !(1 != main_#t~mem9#1);havoc main_#t~mem9#1; 191#L550-2 call main_#t~mem10#1.base, main_#t~mem10#1.offset := read~$Pointer$#1(main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_#t~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#1.offset;main_#t~post11#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post11#1;havoc main_#t~post11#1; 189#L549-2 [2023-11-28 20:32:06,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:06,496 INFO L85 PathProgramCache]: Analyzing trace with hash 206288184, now seen corresponding path program 1 times [2023-11-28 20:32:06,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:06,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666324109] [2023-11-28 20:32:06,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:06,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:06,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:06,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:06,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666324109] [2023-11-28 20:32:06,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666324109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:32:06,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:32:06,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:32:06,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108861253] [2023-11-28 20:32:06,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:32:06,584 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-28 20:32:06,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:06,585 INFO L85 PathProgramCache]: Analyzing trace with hash 76912, now seen corresponding path program 1 times [2023-11-28 20:32:06,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:06,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719557718] [2023-11-28 20:32:06,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:06,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:06,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:06,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:06,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:06,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:32:06,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:32:06,692 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 10 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) [2023-11-28 20:32:06,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:06,733 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2023-11-28 20:32:06,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2023-11-28 20:32:06,735 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 7 [2023-11-28 20:32:06,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 42 transitions. [2023-11-28 20:32:06,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2023-11-28 20:32:06,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2023-11-28 20:32:06,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 42 transitions. [2023-11-28 20:32:06,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:32:06,736 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 42 transitions. [2023-11-28 20:32:06,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 42 transitions. [2023-11-28 20:32:06,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2023-11-28 20:32:06,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 21 states have internal predecessors, (28), 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) [2023-11-28 20:32:06,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2023-11-28 20:32:06,739 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 28 transitions. [2023-11-28 20:32:06,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:32:06,741 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2023-11-28 20:32:06,741 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-28 20:32:06,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2023-11-28 20:32:06,742 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2023-11-28 20:32:06,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:32:06,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:32:06,743 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:06,743 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-28 20:32:06,743 INFO L748 eck$LassoCheckResult]: Stem: 253#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 246#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~mem7#1.base, main_#t~mem7#1.offset, main_#t~post8#1, main_#t~nondet4#1, main_#t~short5#1, main_#t~mem9#1, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~post11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset, main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, main_~p~0#1.offset, main_~i~0#1;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(8);main_~a~0#1.base, main_~a~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 247#L533 assume !(main_~a~0#1.base == 0 && main_~a~0#1.offset == 0); 248#L533-1 havoc main_~t~0#1.base, main_~t~0#1.offset;main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 249#L537-5 main_#t~short5#1 := main_~i~0#1 < 30; 238#L537-1 assume main_#t~short5#1;havoc main_#t~nondet4#1;main_#t~short5#1 := 0 != main_#t~nondet4#1; 239#L537-3 assume !main_#t~short5#1;havoc main_#t~nondet4#1;havoc main_#t~short5#1; 242#L537-6 call write~int#1(main_~i~0#1, main_~p~0#1.base, main_~p~0#1.offset, 4);call write~$Pointer$#1(0, 0, main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 254#L549-2 [2023-11-28 20:32:06,743 INFO L750 eck$LassoCheckResult]: Loop: 254#L549-2 assume !!(main_~p~0#1.base != 0 || main_~p~0#1.offset != 0);call main_#t~mem9#1 := read~int#1(main_~p~0#1.base, main_~p~0#1.offset, 4); 255#L550 assume !(1 != main_#t~mem9#1);havoc main_#t~mem9#1; 256#L550-2 call main_#t~mem10#1.base, main_#t~mem10#1.offset := read~$Pointer$#1(main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_#t~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#1.offset;main_#t~post11#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post11#1;havoc main_#t~post11#1; 254#L549-2 [2023-11-28 20:32:06,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:06,744 INFO L85 PathProgramCache]: Analyzing trace with hash 206286262, now seen corresponding path program 1 times [2023-11-28 20:32:06,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:06,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143096380] [2023-11-28 20:32:06,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:06,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:06,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:06,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:06,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:06,772 INFO L85 PathProgramCache]: Analyzing trace with hash 76912, now seen corresponding path program 2 times [2023-11-28 20:32:06,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:06,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948598200] [2023-11-28 20:32:06,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:06,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:06,779 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:06,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:06,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:06,785 INFO L85 PathProgramCache]: Analyzing trace with hash -624122213, now seen corresponding path program 1 times [2023-11-28 20:32:06,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:06,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940731929] [2023-11-28 20:32:06,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:06,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:06,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:06,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:06,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940731929] [2023-11-28 20:32:06,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940731929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:32:06,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:32:06,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:32:06,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338105170] [2023-11-28 20:32:06,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:32:07,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:07,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:32:07,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:32:07,049 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:32:07,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:07,137 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2023-11-28 20:32:07,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 46 transitions. [2023-11-28 20:32:07,139 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 6 [2023-11-28 20:32:07,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 37 states and 45 transitions. [2023-11-28 20:32:07,141 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2023-11-28 20:32:07,141 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-11-28 20:32:07,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 45 transitions. [2023-11-28 20:32:07,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:32:07,141 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 45 transitions. [2023-11-28 20:32:07,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 45 transitions. [2023-11-28 20:32:07,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2023-11-28 20:32:07,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.28) internal successors, (32), 24 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) [2023-11-28 20:32:07,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2023-11-28 20:32:07,145 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 32 transitions. [2023-11-28 20:32:07,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:32:07,146 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2023-11-28 20:32:07,146 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-28 20:32:07,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 32 transitions. [2023-11-28 20:32:07,147 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2023-11-28 20:32:07,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:32:07,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:32:07,148 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:07,148 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-28 20:32:07,149 INFO L748 eck$LassoCheckResult]: Stem: 327#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 320#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~mem7#1.base, main_#t~mem7#1.offset, main_#t~post8#1, main_#t~nondet4#1, main_#t~short5#1, main_#t~mem9#1, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~post11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset, main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, main_~p~0#1.offset, main_~i~0#1;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(8);main_~a~0#1.base, main_~a~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 321#L533 assume !(main_~a~0#1.base == 0 && main_~a~0#1.offset == 0); 322#L533-1 havoc main_~t~0#1.base, main_~t~0#1.offset;main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 323#L537-5 main_#t~short5#1 := main_~i~0#1 < 30; 312#L537-1 assume main_#t~short5#1;havoc main_#t~nondet4#1;main_#t~short5#1 := 0 != main_#t~nondet4#1; 313#L537-3 assume !!main_#t~short5#1;havoc main_#t~nondet4#1;havoc main_#t~short5#1;call write~int#1(main_~i~0#1, main_~p~0#1.base, main_~p~0#1.offset, 4);call main_#t~malloc6#1.base, main_#t~malloc6#1.offset := #Ultimate.allocOnHeap(8);main_~t~0#1.base, main_~t~0#1.offset := main_#t~malloc6#1.base, main_#t~malloc6#1.offset;havoc main_#t~malloc6#1.base, main_#t~malloc6#1.offset; 317#L540 assume main_~t~0#1.base == 0 && main_~t~0#1.offset == 0;assume { :begin_inline_myexit } true;myexit_#in~s#1 := 1;havoc myexit_~s#1;myexit_~s#1 := myexit_#in~s#1; 326#L525-1 [2023-11-28 20:32:07,149 INFO L750 eck$LassoCheckResult]: Loop: 326#L525-1 assume true; 326#L525-1 [2023-11-28 20:32:07,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:07,149 INFO L85 PathProgramCache]: Analyzing trace with hash 206286315, now seen corresponding path program 1 times [2023-11-28 20:32:07,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:07,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103454136] [2023-11-28 20:32:07,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:07,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:07,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:07,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:07,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103454136] [2023-11-28 20:32:07,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103454136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:32:07,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:32:07,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:32:07,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791111280] [2023-11-28 20:32:07,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:32:07,173 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-28 20:32:07,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:07,174 INFO L85 PathProgramCache]: Analyzing trace with hash 116, now seen corresponding path program 1 times [2023-11-28 20:32:07,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:07,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586311667] [2023-11-28 20:32:07,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:07,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:07,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:07,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:07,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:07,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:32:07,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:32:07,181 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. cyclomatic complexity: 11 Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:32:07,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:07,189 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2023-11-28 20:32:07,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2023-11-28 20:32:07,190 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2023-11-28 20:32:07,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 26 states and 31 transitions. [2023-11-28 20:32:07,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-28 20:32:07,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-28 20:32:07,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 31 transitions. [2023-11-28 20:32:07,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:32:07,191 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-11-28 20:32:07,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 31 transitions. [2023-11-28 20:32:07,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2023-11-28 20:32:07,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 22 states have internal predecessors, (28), 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) [2023-11-28 20:32:07,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2023-11-28 20:32:07,194 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2023-11-28 20:32:07,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:32:07,195 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2023-11-28 20:32:07,195 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-28 20:32:07,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2023-11-28 20:32:07,196 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-28 20:32:07,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:32:07,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:32:07,197 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:07,197 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-28 20:32:07,197 INFO L748 eck$LassoCheckResult]: Stem: 383#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 377#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~mem7#1.base, main_#t~mem7#1.offset, main_#t~post8#1, main_#t~nondet4#1, main_#t~short5#1, main_#t~mem9#1, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~post11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset, main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, main_~p~0#1.offset, main_~i~0#1;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(8);main_~a~0#1.base, main_~a~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 378#L533 assume !(main_~a~0#1.base == 0 && main_~a~0#1.offset == 0); 379#L533-1 havoc main_~t~0#1.base, main_~t~0#1.offset;main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 380#L537-5 main_#t~short5#1 := main_~i~0#1 < 30; 370#L537-1 assume main_#t~short5#1;havoc main_#t~nondet4#1;main_#t~short5#1 := 0 != main_#t~nondet4#1; 371#L537-3 assume !main_#t~short5#1;havoc main_#t~nondet4#1;havoc main_#t~short5#1; 374#L537-6 call write~int#1(main_~i~0#1, main_~p~0#1.base, main_~p~0#1.offset, 4);call write~$Pointer$#1(0, 0, main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 384#L549-2 assume !(main_~p~0#1.base != 0 || main_~p~0#1.offset != 0); 376#L549-3 main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset; 369#L557-2 [2023-11-28 20:32:07,197 INFO L750 eck$LassoCheckResult]: Loop: 369#L557-2 assume !!(main_~p~0#1.base != 0 || main_~p~0#1.offset != 0);call main_#t~mem12#1.base, main_#t~mem12#1.offset := read~$Pointer$#1(main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~mem12#1.base, main_#t~mem12#1.offset;havoc main_#t~mem12#1.base, main_#t~mem12#1.offset;call ULTIMATE.dealloc(main_~p~0#1.base, main_~p~0#1.offset);main_~p~0#1.base, main_~p~0#1.offset := main_~tmp~0#1.base, main_~tmp~0#1.offset;havoc main_~tmp~0#1.base, main_~tmp~0#1.offset; 369#L557-2 [2023-11-28 20:32:07,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:07,198 INFO L85 PathProgramCache]: Analyzing trace with hash 672603628, now seen corresponding path program 1 times [2023-11-28 20:32:07,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:07,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673768670] [2023-11-28 20:32:07,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:07,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:07,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:07,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673768670] [2023-11-28 20:32:07,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673768670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:32:07,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:32:07,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:32:07,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937877481] [2023-11-28 20:32:07,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:32:07,237 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-28 20:32:07,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:07,238 INFO L85 PathProgramCache]: Analyzing trace with hash 107, now seen corresponding path program 1 times [2023-11-28 20:32:07,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:07,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829695165] [2023-11-28 20:32:07,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:07,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:07,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:07,246 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:07,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:07,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:32:07,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:32:07,305 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-11-28 20:32:07,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:07,340 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2023-11-28 20:32:07,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 34 transitions. [2023-11-28 20:32:07,341 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-28 20:32:07,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 26 states and 30 transitions. [2023-11-28 20:32:07,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-28 20:32:07,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-11-28 20:32:07,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 30 transitions. [2023-11-28 20:32:07,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:32:07,342 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-11-28 20:32:07,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 30 transitions. [2023-11-28 20:32:07,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2023-11-28 20:32:07,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.2) internal successors, (24), 19 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) [2023-11-28 20:32:07,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2023-11-28 20:32:07,344 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-11-28 20:32:07,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:32:07,345 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-11-28 20:32:07,346 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-28 20:32:07,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 24 transitions. [2023-11-28 20:32:07,346 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-28 20:32:07,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:32:07,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:32:07,347 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:07,347 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-28 20:32:07,347 INFO L748 eck$LassoCheckResult]: Stem: 444#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 439#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~mem7#1.base, main_#t~mem7#1.offset, main_#t~post8#1, main_#t~nondet4#1, main_#t~short5#1, main_#t~mem9#1, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~post11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset, main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, main_~p~0#1.offset, main_~i~0#1;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(8);main_~a~0#1.base, main_~a~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 440#L533 assume !(main_~a~0#1.base == 0 && main_~a~0#1.offset == 0); 441#L533-1 havoc main_~t~0#1.base, main_~t~0#1.offset;main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 442#L537-5 main_#t~short5#1 := main_~i~0#1 < 30; 434#L537-1 assume main_#t~short5#1;havoc main_#t~nondet4#1;main_#t~short5#1 := 0 != main_#t~nondet4#1; 435#L537-3 assume !!main_#t~short5#1;havoc main_#t~nondet4#1;havoc main_#t~short5#1;call write~int#1(main_~i~0#1, main_~p~0#1.base, main_~p~0#1.offset, 4);call main_#t~malloc6#1.base, main_#t~malloc6#1.offset := #Ultimate.allocOnHeap(8);main_~t~0#1.base, main_~t~0#1.offset := main_#t~malloc6#1.base, main_#t~malloc6#1.offset;havoc main_#t~malloc6#1.base, main_#t~malloc6#1.offset; 437#L540 assume !(main_~t~0#1.base == 0 && main_~t~0#1.offset == 0); 429#L540-1 call write~$Pointer$#1(main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);call main_#t~mem7#1.base, main_#t~mem7#1.offset := read~$Pointer$#1(main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_#t~mem7#1.base, main_#t~mem7#1.offset;havoc main_#t~mem7#1.base, main_#t~mem7#1.offset;main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 430#L537-5 main_#t~short5#1 := main_~i~0#1 < 30; 432#L537-1 assume !main_#t~short5#1; 433#L537-3 assume !main_#t~short5#1;havoc main_#t~nondet4#1;havoc main_#t~short5#1; 436#L537-6 call write~int#1(main_~i~0#1, main_~p~0#1.base, main_~p~0#1.offset, 4);call write~$Pointer$#1(0, 0, main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 445#L549-2 assume !!(main_~p~0#1.base != 0 || main_~p~0#1.offset != 0);call main_#t~mem9#1 := read~int#1(main_~p~0#1.base, main_~p~0#1.offset, 4); 446#L550 [2023-11-28 20:32:07,347 INFO L750 eck$LassoCheckResult]: Loop: 446#L550 assume !(1 != main_#t~mem9#1);havoc main_#t~mem9#1; 447#L550-2 call main_#t~mem10#1.base, main_#t~mem10#1.offset := read~$Pointer$#1(main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_#t~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#1.offset;main_#t~post11#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post11#1;havoc main_#t~post11#1; 448#L549-2 assume !!(main_~p~0#1.base != 0 || main_~p~0#1.offset != 0);call main_#t~mem9#1 := read~int#1(main_~p~0#1.base, main_~p~0#1.offset, 4); 446#L550 [2023-11-28 20:32:07,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:07,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1728225128, now seen corresponding path program 1 times [2023-11-28 20:32:07,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:07,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669301539] [2023-11-28 20:32:07,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:07,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:07,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:07,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:07,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669301539] [2023-11-28 20:32:07,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669301539] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:32:07,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452330672] [2023-11-28 20:32:07,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:07,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:32:07,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:07,448 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:32:07,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-28 20:32:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:07,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:32:07,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:32:07,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:07,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:32:07,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:07,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452330672] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:32:07,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:32:07,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2023-11-28 20:32:07,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560124052] [2023-11-28 20:32:07,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:32:07,616 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-28 20:32:07,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:07,616 INFO L85 PathProgramCache]: Analyzing trace with hash 90412, now seen corresponding path program 3 times [2023-11-28 20:32:07,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:07,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745522404] [2023-11-28 20:32:07,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:07,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:07,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:07,628 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:07,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:07,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:32:07,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:32:07,745 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. cyclomatic complexity: 7 Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 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) [2023-11-28 20:32:07,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:07,860 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2023-11-28 20:32:07,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 74 transitions. [2023-11-28 20:32:07,861 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 7 [2023-11-28 20:32:07,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 64 states and 74 transitions. [2023-11-28 20:32:07,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2023-11-28 20:32:07,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2023-11-28 20:32:07,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 74 transitions. [2023-11-28 20:32:07,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:32:07,863 INFO L218 hiAutomatonCegarLoop]: Abstraction has 64 states and 74 transitions. [2023-11-28 20:32:07,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 74 transitions. [2023-11-28 20:32:07,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 36. [2023-11-28 20:32:07,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 35 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:32:07,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2023-11-28 20:32:07,867 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 43 transitions. [2023-11-28 20:32:07,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 20:32:07,869 INFO L428 stractBuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2023-11-28 20:32:07,869 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-28 20:32:07,869 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 43 transitions. [2023-11-28 20:32:07,869 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-28 20:32:07,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:32:07,870 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:32:07,870 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:07,870 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-28 20:32:07,870 INFO L748 eck$LassoCheckResult]: Stem: 628#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 620#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~mem7#1.base, main_#t~mem7#1.offset, main_#t~post8#1, main_#t~nondet4#1, main_#t~short5#1, main_#t~mem9#1, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~post11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset, main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, main_~p~0#1.offset, main_~i~0#1;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(8);main_~a~0#1.base, main_~a~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 621#L533 assume !(main_~a~0#1.base == 0 && main_~a~0#1.offset == 0); 622#L533-1 havoc main_~t~0#1.base, main_~t~0#1.offset;main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 623#L537-5 main_#t~short5#1 := main_~i~0#1 < 30; 624#L537-1 assume main_#t~short5#1;havoc main_#t~nondet4#1;main_#t~short5#1 := 0 != main_#t~nondet4#1; 645#L537-3 assume !!main_#t~short5#1;havoc main_#t~nondet4#1;havoc main_#t~short5#1;call write~int#1(main_~i~0#1, main_~p~0#1.base, main_~p~0#1.offset, 4);call main_#t~malloc6#1.base, main_#t~malloc6#1.offset := #Ultimate.allocOnHeap(8);main_~t~0#1.base, main_~t~0#1.offset := main_#t~malloc6#1.base, main_#t~malloc6#1.offset;havoc main_#t~malloc6#1.base, main_#t~malloc6#1.offset; 626#L540 assume !(main_~t~0#1.base == 0 && main_~t~0#1.offset == 0); 627#L540-1 call write~$Pointer$#1(main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);call main_#t~mem7#1.base, main_#t~mem7#1.offset := read~$Pointer$#1(main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_#t~mem7#1.base, main_#t~mem7#1.offset;havoc main_#t~mem7#1.base, main_#t~mem7#1.offset;main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 625#L537-5 main_#t~short5#1 := main_~i~0#1 < 30; 613#L537-1 assume main_#t~short5#1;havoc main_#t~nondet4#1;main_#t~short5#1 := 0 != main_#t~nondet4#1; 614#L537-3 assume !main_#t~short5#1;havoc main_#t~nondet4#1;havoc main_#t~short5#1; 617#L537-6 call write~int#1(main_~i~0#1, main_~p~0#1.base, main_~p~0#1.offset, 4);call write~$Pointer$#1(0, 0, main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 629#L549-2 assume !!(main_~p~0#1.base != 0 || main_~p~0#1.offset != 0);call main_#t~mem9#1 := read~int#1(main_~p~0#1.base, main_~p~0#1.offset, 4); 630#L550 [2023-11-28 20:32:07,871 INFO L750 eck$LassoCheckResult]: Loop: 630#L550 assume !(1 != main_#t~mem9#1);havoc main_#t~mem9#1; 631#L550-2 call main_#t~mem10#1.base, main_#t~mem10#1.offset := read~$Pointer$#1(main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_#t~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#1.offset;main_#t~post11#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post11#1;havoc main_#t~post11#1; 632#L549-2 assume !!(main_~p~0#1.base != 0 || main_~p~0#1.offset != 0);call main_#t~mem9#1 := read~int#1(main_~p~0#1.base, main_~p~0#1.offset, 4); 630#L550 [2023-11-28 20:32:07,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:07,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1728165546, now seen corresponding path program 1 times [2023-11-28 20:32:07,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:07,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275198167] [2023-11-28 20:32:07,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:07,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:07,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:07,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:07,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:07,910 INFO L85 PathProgramCache]: Analyzing trace with hash 90412, now seen corresponding path program 4 times [2023-11-28 20:32:07,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:07,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832240427] [2023-11-28 20:32:07,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:07,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:07,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:07,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:07,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:07,921 INFO L85 PathProgramCache]: Analyzing trace with hash 6864355, now seen corresponding path program 1 times [2023-11-28 20:32:07,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:07,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996252979] [2023-11-28 20:32:07,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:07,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:08,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:08,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996252979] [2023-11-28 20:32:08,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996252979] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:32:08,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221916857] [2023-11-28 20:32:08,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:08,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:32:08,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:08,228 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:32:08,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-28 20:32:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:08,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-28 20:32:08,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:32:08,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-28 20:32:08,414 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-28 20:32:08,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-28 20:32:08,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-28 20:32:08,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-28 20:32:08,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:08,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:32:08,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:32:08,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 30 [2023-11-28 20:32:08,813 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:32:08,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 36 [2023-11-28 20:32:08,831 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-11-28 20:32:08,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2023-11-28 20:32:08,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-28 20:32:09,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:09,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221916857] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:32:09,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:32:09,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 18 [2023-11-28 20:32:09,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966537352] [2023-11-28 20:32:09,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:32:09,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:09,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 20:32:09,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=249, Unknown=3, NotChecked=0, Total=306 [2023-11-28 20:32:09,144 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. cyclomatic complexity: 10 Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 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) [2023-11-28 20:32:09,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:09,414 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2023-11-28 20:32:09,414 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 49 transitions. [2023-11-28 20:32:09,415 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-28 20:32:09,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 38 states and 44 transitions. [2023-11-28 20:32:09,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-28 20:32:09,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-11-28 20:32:09,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 44 transitions. [2023-11-28 20:32:09,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:32:09,416 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 44 transitions. [2023-11-28 20:32:09,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 44 transitions. [2023-11-28 20:32:09,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2023-11-28 20:32:09,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 35 states have internal predecessors, (42), 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) [2023-11-28 20:32:09,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2023-11-28 20:32:09,420 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 42 transitions. [2023-11-28 20:32:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 20:32:09,421 INFO L428 stractBuchiCegarLoop]: Abstraction has 36 states and 42 transitions. [2023-11-28 20:32:09,421 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-28 20:32:09,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 42 transitions. [2023-11-28 20:32:09,421 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-28 20:32:09,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:32:09,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:32:09,422 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:09,422 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-28 20:32:09,423 INFO L748 eck$LassoCheckResult]: Stem: 832#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 824#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~mem7#1.base, main_#t~mem7#1.offset, main_#t~post8#1, main_#t~nondet4#1, main_#t~short5#1, main_#t~mem9#1, main_#t~mem10#1.base, main_#t~mem10#1.offset, main_#t~post11#1, main_#t~mem12#1.base, main_#t~mem12#1.offset, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset, main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, main_~p~0#1.offset, main_~i~0#1;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(8);main_~a~0#1.base, main_~a~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 825#L533 assume !(main_~a~0#1.base == 0 && main_~a~0#1.offset == 0); 826#L533-1 havoc main_~t~0#1.base, main_~t~0#1.offset;main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 827#L537-5 main_#t~short5#1 := main_~i~0#1 < 30; 828#L537-1 assume main_#t~short5#1;havoc main_#t~nondet4#1;main_#t~short5#1 := 0 != main_#t~nondet4#1; 845#L537-3 assume !!main_#t~short5#1;havoc main_#t~nondet4#1;havoc main_#t~short5#1;call write~int#1(main_~i~0#1, main_~p~0#1.base, main_~p~0#1.offset, 4);call main_#t~malloc6#1.base, main_#t~malloc6#1.offset := #Ultimate.allocOnHeap(8);main_~t~0#1.base, main_~t~0#1.offset := main_#t~malloc6#1.base, main_#t~malloc6#1.offset;havoc main_#t~malloc6#1.base, main_#t~malloc6#1.offset; 843#L540 assume !(main_~t~0#1.base == 0 && main_~t~0#1.offset == 0); 841#L540-1 call write~$Pointer$#1(main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);call main_#t~mem7#1.base, main_#t~mem7#1.offset := read~$Pointer$#1(main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_#t~mem7#1.base, main_#t~mem7#1.offset;havoc main_#t~mem7#1.base, main_#t~mem7#1.offset;main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 829#L537-5 main_#t~short5#1 := main_~i~0#1 < 30; 819#L537-1 assume main_#t~short5#1;havoc main_#t~nondet4#1;main_#t~short5#1 := 0 != main_#t~nondet4#1; 820#L537-3 assume !!main_#t~short5#1;havoc main_#t~nondet4#1;havoc main_#t~short5#1;call write~int#1(main_~i~0#1, main_~p~0#1.base, main_~p~0#1.offset, 4);call main_#t~malloc6#1.base, main_#t~malloc6#1.offset := #Ultimate.allocOnHeap(8);main_~t~0#1.base, main_~t~0#1.offset := main_#t~malloc6#1.base, main_#t~malloc6#1.offset;havoc main_#t~malloc6#1.base, main_#t~malloc6#1.offset; 822#L540 assume !(main_~t~0#1.base == 0 && main_~t~0#1.offset == 0); 814#L540-1 call write~$Pointer$#1(main_~t~0#1.base, main_~t~0#1.offset, main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);call main_#t~mem7#1.base, main_#t~mem7#1.offset := read~$Pointer$#1(main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_#t~mem7#1.base, main_#t~mem7#1.offset;havoc main_#t~mem7#1.base, main_#t~mem7#1.offset;main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 815#L537-5 main_#t~short5#1 := main_~i~0#1 < 30; 817#L537-1 assume main_#t~short5#1;havoc main_#t~nondet4#1;main_#t~short5#1 := 0 != main_#t~nondet4#1; 818#L537-3 assume !main_#t~short5#1;havoc main_#t~nondet4#1;havoc main_#t~short5#1; 821#L537-6 call write~int#1(main_~i~0#1, main_~p~0#1.base, main_~p~0#1.offset, 4);call write~$Pointer$#1(0, 0, main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~i~0#1 := 0; 830#L549-2 assume !!(main_~p~0#1.base != 0 || main_~p~0#1.offset != 0);call main_#t~mem9#1 := read~int#1(main_~p~0#1.base, main_~p~0#1.offset, 4); 831#L550 [2023-11-28 20:32:09,423 INFO L750 eck$LassoCheckResult]: Loop: 831#L550 assume !(1 != main_#t~mem9#1);havoc main_#t~mem9#1; 833#L550-2 call main_#t~mem10#1.base, main_#t~mem10#1.offset := read~$Pointer$#1(main_~p~0#1.base, 4 + main_~p~0#1.offset, 4);main_~p~0#1.base, main_~p~0#1.offset := main_#t~mem10#1.base, main_#t~mem10#1.offset;havoc main_#t~mem10#1.base, main_#t~mem10#1.offset;main_#t~post11#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post11#1;havoc main_#t~post11#1; 834#L549-2 assume !!(main_~p~0#1.base != 0 || main_~p~0#1.offset != 0);call main_#t~mem9#1 := read~int#1(main_~p~0#1.base, main_~p~0#1.offset, 4); 831#L550 [2023-11-28 20:32:09,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:09,423 INFO L85 PathProgramCache]: Analyzing trace with hash 46254041, now seen corresponding path program 2 times [2023-11-28 20:32:09,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:09,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081850490] [2023-11-28 20:32:09,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:09,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:09,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:09,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:09,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:09,476 INFO L85 PathProgramCache]: Analyzing trace with hash 90412, now seen corresponding path program 5 times [2023-11-28 20:32:09,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:09,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324998970] [2023-11-28 20:32:09,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:09,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:09,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:32:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:32:09,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:32:09,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:09,486 INFO L85 PathProgramCache]: Analyzing trace with hash -730305964, now seen corresponding path program 2 times [2023-11-28 20:32:09,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:09,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137099071] [2023-11-28 20:32:09,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:09,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:09,969 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:09,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:09,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137099071] [2023-11-28 20:32:09,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137099071] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:32:09,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155955047] [2023-11-28 20:32:09,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:32:09,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:32:09,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:09,971 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:32:09,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-28 20:32:10,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:32:10,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:32:10,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-28 20:32:10,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:32:10,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-28 20:32:10,166 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-28 20:32:10,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-28 20:32:10,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-28 20:32:10,285 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-28 20:32:10,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-28 20:32:10,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-28 20:32:10,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-28 20:32:10,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-28 20:32:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:10,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:32:10,727 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-11-28 20:32:10,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2023-11-28 20:32:10,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:32:10,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 33 [2023-11-28 20:32:10,877 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:32:10,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 130 [2023-11-28 20:32:10,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 50 [2023-11-28 20:32:10,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2023-11-28 20:32:10,915 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-11-28 20:32:10,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2023-11-28 20:32:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:32:11,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155955047] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:32:11,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:32:11,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 24 [2023-11-28 20:32:11,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778750400] [2023-11-28 20:32:11,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:32:11,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:11,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-28 20:32:11,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=464, Unknown=6, NotChecked=0, Total=552 [2023-11-28 20:32:11,236 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. cyclomatic complexity: 9 Second operand has 24 states, 24 states have (on average 2.4583333333333335) internal successors, (59), 24 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:32:11,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:11,400 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2023-11-28 20:32:11,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 36 transitions. [2023-11-28 20:32:11,401 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-28 20:32:11,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2023-11-28 20:32:11,401 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-28 20:32:11,401 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-28 20:32:11,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-28 20:32:11,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:32:11,402 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:32:11,402 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:32:11,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:32:11,403 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:32:11,403 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-28 20:32:11,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-28 20:32:11,403 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-28 20:32:11,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-28 20:32:11,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:32:11 BoogieIcfgContainer [2023-11-28 20:32:11,409 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-28 20:32:11,409 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:32:11,409 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:32:11,410 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:32:11,410 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:32:03" (3/4) ... [2023-11-28 20:32:11,411 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 20:32:11,412 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:32:11,413 INFO L158 Benchmark]: Toolchain (without parser) took 9184.07ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 150.5MB in the beginning and 66.1MB in the end (delta: 84.4MB). Peak memory consumption was 122.7MB. Max. memory is 16.1GB. [2023-11-28 20:32:11,413 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:32:11,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.68ms. Allocated memory is still 188.7MB. Free memory was 149.9MB in the beginning and 133.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-28 20:32:11,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.99ms. Allocated memory is still 188.7MB. Free memory was 133.1MB in the beginning and 131.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:32:11,414 INFO L158 Benchmark]: Boogie Preprocessor took 49.64ms. Allocated memory is still 188.7MB. Free memory was 131.5MB in the beginning and 128.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:32:11,414 INFO L158 Benchmark]: RCFGBuilder took 350.59ms. Allocated memory is still 188.7MB. Free memory was 128.9MB in the beginning and 114.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-28 20:32:11,415 INFO L158 Benchmark]: BuchiAutomizer took 8299.40ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 114.8MB in the beginning and 66.1MB in the end (delta: 48.7MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. [2023-11-28 20:32:11,415 INFO L158 Benchmark]: Witness Printer took 3.23ms. Allocated memory is still 226.5MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:32:11,417 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.68ms. Allocated memory is still 188.7MB. Free memory was 149.9MB in the beginning and 133.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.99ms. Allocated memory is still 188.7MB. Free memory was 133.1MB in the beginning and 131.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.64ms. Allocated memory is still 188.7MB. Free memory was 131.5MB in the beginning and 128.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.59ms. Allocated memory is still 188.7MB. Free memory was 128.9MB in the beginning and 114.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 8299.40ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 114.8MB in the beginning and 66.1MB in the end (delta: 48.7MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. * Witness Printer took 3.23ms. Allocated memory is still 226.5MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 9 terminating modules (8 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function ((-2 * i) + 59) and consists of 5 locations. 8 modules have a trivial ranking function, the largest among these consists of 24 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.2s and 10 iterations. TraceHistogramMax:3. Analysis of lassos took 7.0s. Construction of modules took 0.4s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 66 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 232 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 231 mSDsluCounter, 371 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 253 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 419 IncrementalHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 118 mSDtfsCounter, 419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN2 SILU3 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital214 mio100 ax108 hnf100 lsp83 ukn54 mio100 lsp27 div100 bol100 ite100 ukn100 eq155 hnf95 smp100 dnf158 smp88 tf100 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 57ms VariablesStem: 3 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-28 20:32:11,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-28 20:32:11,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-28 20:32:11,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2023-11-28 20:32:12,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adc041e8-798e-49d6-a2d9-6d2ddae7c103/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE