./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/lis-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/lis-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme --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 319f31ab0b5c801309acd19f3e336c9a25177d3201cf5ea4438ad6227d5f71cf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:03:15,699 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:03:15,818 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 12:03:15,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:03:15,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:03:15,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:03:15,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:03:15,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:03:15,896 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:03:15,901 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:03:15,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:03:15,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:03:15,903 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:03:15,905 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 12:03:15,914 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 12:03:15,914 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 12:03:15,915 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 12:03:15,915 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 12:03:15,916 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 12:03:15,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:03:15,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 12:03:15,917 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:03:15,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:03:15,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:03:15,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:03:15,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 12:03:15,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 12:03:15,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 12:03:15,921 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:03:15,921 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:03:15,922 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:03:15,923 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 12:03:15,923 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:03:15,923 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:03:15,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:03:15,924 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:03:15,924 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:03:15,925 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 12:03:15,925 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_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 319f31ab0b5c801309acd19f3e336c9a25177d3201cf5ea4438ad6227d5f71cf [2023-11-26 12:03:16,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:03:16,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:03:16,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:03:16,321 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:03:16,322 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:03:16,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/array-memsafety/lis-alloca-1.i [2023-11-26 12:03:19,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:03:19,946 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:03:19,946 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/sv-benchmarks/c/array-memsafety/lis-alloca-1.i [2023-11-26 12:03:19,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/data/a23f87fd1/c7d450570a3349d6aad7796f42589dff/FLAG3a7df63cc [2023-11-26 12:03:20,004 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/data/a23f87fd1/c7d450570a3349d6aad7796f42589dff [2023-11-26 12:03:20,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:03:20,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:03:20,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:20,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:03:20,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:03:20,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5831103d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20, skipping insertion in model container [2023-11-26 12:03:20,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,088 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:03:20,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:20,459 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:03:20,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:20,542 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:03:20,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20 WrapperNode [2023-11-26 12:03:20,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:20,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:20,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:03:20,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:03:20,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,594 INFO L138 Inliner]: procedures = 116, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 115 [2023-11-26 12:03:20,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:20,596 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:03:20,596 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:03:20,596 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:03:20,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,614 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,630 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [3, 7, 2]. 58 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0]. The 5 writes are split as follows [1, 2, 2]. [2023-11-26 12:03:20,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:03:20,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:03:20,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:03:20,669 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:03:20,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (1/1) ... [2023-11-26 12:03:20,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:20,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:20,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:20,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 12:03:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:03:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:03:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:03:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:03:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:03:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:03:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:03:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:03:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:03:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:03:20,948 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:03:20,950 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:03:21,175 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:03:21,198 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:03:21,198 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-26 12:03:21,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:21 BoogieIcfgContainer [2023-11-26 12:03:21,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:03:21,201 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 12:03:21,201 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 12:03:21,205 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 12:03:21,206 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:03:21,206 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 12:03:20" (1/3) ... [2023-11-26 12:03:21,207 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@412ea8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:03:21, skipping insertion in model container [2023-11-26 12:03:21,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:03:21,207 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:20" (2/3) ... [2023-11-26 12:03:21,208 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@412ea8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:03:21, skipping insertion in model container [2023-11-26 12:03:21,208 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:03:21,208 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:21" (3/3) ... [2023-11-26 12:03:21,209 INFO L332 chiAutomizerObserver]: Analyzing ICFG lis-alloca-1.i [2023-11-26 12:03:21,260 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 12:03:21,260 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 12:03:21,260 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 12:03:21,260 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 12:03:21,261 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 12:03:21,261 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 12:03:21,261 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 12:03:21,261 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 12:03:21,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 states have internal predecessors, (38), 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) [2023-11-26 12:03:21,289 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 13 [2023-11-26 12:03:21,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:21,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:21,295 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-26 12:03:21,295 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 12:03:21,296 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 12:03:21,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 states have internal predecessors, (38), 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) [2023-11-26 12:03:21,299 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 13 [2023-11-26 12:03:21,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:21,299 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:21,300 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-26 12:03:21,300 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 12:03:21,308 INFO L748 eck$LassoCheckResult]: Stem: 23#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 11#L530true assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 6#L530-2true call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 3#L535-3true [2023-11-26 12:03:21,309 INFO L750 eck$LassoCheckResult]: Loop: 3#L535-3true assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 15#L535-2true main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 3#L535-3true [2023-11-26 12:03:21,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:21,315 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2023-11-26 12:03:21,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:21,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113221568] [2023-11-26 12:03:21,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:21,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:21,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:21,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:21,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:21,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2023-11-26 12:03:21,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:21,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598847109] [2023-11-26 12:03:21,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:21,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:21,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:21,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:21,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:21,626 INFO L85 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2023-11-26 12:03:21,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:21,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676610613] [2023-11-26 12:03:21,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:21,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:21,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:21,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:22,039 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:03:22,040 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:03:22,041 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:03:22,041 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:03:22,041 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:03:22,041 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:22,041 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:03:22,042 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:03:22,042 INFO L133 ssoRankerPreferences]: Filename of dumped script: lis-alloca-1.i_Iteration1_Lasso [2023-11-26 12:03:22,042 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:03:22,042 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:03:22,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:22,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:22,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:22,082 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:22,253 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:22,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:22,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:22,263 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:22,267 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:22,271 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:22,713 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:03:22,717 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:03:22,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:22,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:22,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:22,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 12:03:22,740 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 [2023-11-26 12:03:22,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:22,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:22,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:22,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:22,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:22,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:22,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:22,770 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:22,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:22,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:22,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:22,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:22,790 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 [2023-11-26 12:03:22,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 12:03:22,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:22,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:22,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:22,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:22,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:22,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:22,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:22,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:22,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:22,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:22,843 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:22,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 12:03:22,847 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 [2023-11-26 12:03:22,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:22,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:22,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:22,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:22,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:22,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:22,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:22,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:22,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:22,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:22,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:22,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:22,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:03:22,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 12:03:22,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:22,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:22,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:22,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:22,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:22,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:22,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:22,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:22,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:22,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:22,944 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:22,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 12:03:22,959 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 [2023-11-26 12:03:22,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:22,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:22,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:22,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:22,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:22,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:23,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:23,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:23,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:23,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:23,016 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:23,030 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 [2023-11-26 12:03:23,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 12:03:23,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:23,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:23,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:23,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:23,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:23,045 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:23,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:23,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:23,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:23,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:23,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:23,071 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:23,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 12:03:23,077 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 [2023-11-26 12:03:23,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:23,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:23,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:23,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:23,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:23,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:23,128 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:03:23,182 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2023-11-26 12:03:23,183 INFO L444 ModelExtractionUtils]: 1 out of 19 variables were initially zero. Simplification set additionally 15 variables to zero. [2023-11-26 12:03:23,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:23,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:23,228 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:23,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-26 12:03:23,254 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:03:23,276 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-26 12:03:23,276 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:03:23,277 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~array_size~0#1, ULTIMATE.start_main_~i~1#1) = 1*ULTIMATE.start_main_~array_size~0#1 - 1*ULTIMATE.start_main_~i~1#1 Supporting invariants [] [2023-11-26 12:03:23,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:23,299 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2023-11-26 12:03:23,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:23,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:03:23,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:23,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:03:23,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:23,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:23,414 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 12:03:23,416 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:23,476 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 47 states and 74 transitions. Complement of second has 8 states. [2023-11-26 12:03:23,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 12:03:23,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:23,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2023-11-26 12:03:23,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-26 12:03:23,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:03:23,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-26 12:03:23,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:03:23,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-26 12:03:23,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:03:23,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 74 transitions. [2023-11-26 12:03:23,493 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2023-11-26 12:03:23,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 21 states and 33 transitions. [2023-11-26 12:03:23,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-11-26 12:03:23,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-26 12:03:23,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 33 transitions. [2023-11-26 12:03:23,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:23,500 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 33 transitions. [2023-11-26 12:03:23,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 33 transitions. [2023-11-26 12:03:23,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-26 12:03:23,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 20 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:23,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 33 transitions. [2023-11-26 12:03:23,524 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 33 transitions. [2023-11-26 12:03:23,525 INFO L428 stractBuchiCegarLoop]: Abstraction has 21 states and 33 transitions. [2023-11-26 12:03:23,525 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 12:03:23,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 33 transitions. [2023-11-26 12:03:23,526 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2023-11-26 12:03:23,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:23,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:23,526 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-26 12:03:23,527 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 12:03:23,527 INFO L748 eck$LassoCheckResult]: Stem: 148#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 140#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 141#L530 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 136#L530-2 call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 129#L535-3 assume !(main_~i~1#1 < main_~array_size~0#1); 131#L535-4 havoc main_~i~1#1;assume { :begin_inline_lis } true;lis_#in~a#1.base, lis_#in~a#1.offset, lis_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc lis_#res#1;havoc lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset, lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset, lis_#t~post4#1, lis_#t~mem7#1, lis_#t~mem8#1, lis_#t~mem10#1, lis_#t~mem9#1, lis_#t~short11#1, lis_#t~mem12#1, lis_#t~post6#1, lis_#t~post5#1, lis_#t~mem14#1, lis_#t~mem15#1, lis_#t~post13#1, lis_~a#1.base, lis_~a#1.offset, lis_~N#1, lis_~best~0#1.base, lis_~best~0#1.offset, lis_~prev~0#1.base, lis_~prev~0#1.offset, lis_~i~0#1, lis_~j~0#1, lis_~max~0#1;lis_~a#1.base, lis_~a#1.offset := lis_#in~a#1.base, lis_#in~a#1.offset;lis_~N#1 := lis_#in~N#1;havoc lis_~best~0#1.base, lis_~best~0#1.offset;havoc lis_~prev~0#1.base, lis_~prev~0#1.offset;havoc lis_~i~0#1;havoc lis_~j~0#1;lis_~max~0#1 := 0;call lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~best~0#1.base, lis_~best~0#1.offset := lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset;call lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~prev~0#1.base, lis_~prev~0#1.offset := lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset;lis_~i~0#1 := 0; 143#L517-3 [2023-11-26 12:03:23,527 INFO L750 eck$LassoCheckResult]: Loop: 143#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 142#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 143#L517-3 [2023-11-26 12:03:23,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:23,528 INFO L85 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2023-11-26 12:03:23,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:23,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502868654] [2023-11-26 12:03:23,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:23,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:23,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:23,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502868654] [2023-11-26 12:03:23,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502868654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:23,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:23,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:03:23,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371214968] [2023-11-26 12:03:23,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:23,707 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:03:23,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:23,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 1 times [2023-11-26 12:03:23,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:23,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77097978] [2023-11-26 12:03:23,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:23,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:23,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:23,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:23,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:03:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:03:23,864 INFO L87 Difference]: Start difference. First operand 21 states and 33 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:23,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:23,907 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2023-11-26 12:03:23,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 30 transitions. [2023-11-26 12:03:23,912 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2023-11-26 12:03:23,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 30 transitions. [2023-11-26 12:03:23,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-26 12:03:23,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-26 12:03:23,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2023-11-26 12:03:23,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:23,922 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 30 transitions. [2023-11-26 12:03:23,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2023-11-26 12:03:23,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2023-11-26 12:03:23,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.380952380952381) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:23,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2023-11-26 12:03:23,926 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 29 transitions. [2023-11-26 12:03:23,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:03:23,928 INFO L428 stractBuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2023-11-26 12:03:23,928 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 12:03:23,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 29 transitions. [2023-11-26 12:03:23,929 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2023-11-26 12:03:23,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:23,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:23,930 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:23,930 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 12:03:23,931 INFO L748 eck$LassoCheckResult]: Stem: 198#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 190#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 191#L530 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 186#L530-2 call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 179#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 180#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 181#L535-3 assume !(main_~i~1#1 < main_~array_size~0#1); 182#L535-4 havoc main_~i~1#1;assume { :begin_inline_lis } true;lis_#in~a#1.base, lis_#in~a#1.offset, lis_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc lis_#res#1;havoc lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset, lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset, lis_#t~post4#1, lis_#t~mem7#1, lis_#t~mem8#1, lis_#t~mem10#1, lis_#t~mem9#1, lis_#t~short11#1, lis_#t~mem12#1, lis_#t~post6#1, lis_#t~post5#1, lis_#t~mem14#1, lis_#t~mem15#1, lis_#t~post13#1, lis_~a#1.base, lis_~a#1.offset, lis_~N#1, lis_~best~0#1.base, lis_~best~0#1.offset, lis_~prev~0#1.base, lis_~prev~0#1.offset, lis_~i~0#1, lis_~j~0#1, lis_~max~0#1;lis_~a#1.base, lis_~a#1.offset := lis_#in~a#1.base, lis_#in~a#1.offset;lis_~N#1 := lis_#in~N#1;havoc lis_~best~0#1.base, lis_~best~0#1.offset;havoc lis_~prev~0#1.base, lis_~prev~0#1.offset;havoc lis_~i~0#1;havoc lis_~j~0#1;lis_~max~0#1 := 0;call lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~best~0#1.base, lis_~best~0#1.offset := lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset;call lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~prev~0#1.base, lis_~prev~0#1.offset := lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset;lis_~i~0#1 := 0; 193#L517-3 [2023-11-26 12:03:23,931 INFO L750 eck$LassoCheckResult]: Loop: 193#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 192#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 193#L517-3 [2023-11-26 12:03:23,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:23,932 INFO L85 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2023-11-26 12:03:23,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:23,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873261126] [2023-11-26 12:03:23,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:23,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:23,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:24,027 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:24,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:24,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 2 times [2023-11-26 12:03:24,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:24,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335196131] [2023-11-26 12:03:24,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:24,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:24,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:24,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:24,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:24,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1899811567, now seen corresponding path program 1 times [2023-11-26 12:03:24,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:24,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327661841] [2023-11-26 12:03:24,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:24,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:24,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:24,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:24,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:24,904 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:03:24,905 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:03:24,905 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:03:24,905 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:03:24,905 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:03:24,905 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:24,905 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:03:24,905 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:03:24,905 INFO L133 ssoRankerPreferences]: Filename of dumped script: lis-alloca-1.i_Iteration3_Lasso [2023-11-26 12:03:24,905 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:03:24,906 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:03:24,910 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,925 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,928 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,942 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,945 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,948 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:24,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,366 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,373 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,377 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,380 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,383 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,388 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,390 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,392 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:25,887 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:03:25,887 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:03:25,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:25,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:25,889 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:25,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-26 12:03:25,901 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 [2023-11-26 12:03:25,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:25,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:25,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:25,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:25,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:25,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:25,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:25,924 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:25,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:25,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:25,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:25,938 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:25,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-26 12:03:25,950 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 [2023-11-26 12:03:25,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:25,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:25,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:25,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:25,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:25,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:25,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:25,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:25,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:25,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:25,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:25,989 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:25,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-26 12:03:25,993 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 [2023-11-26 12:03:26,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:26,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,010 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:26,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:26,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,040 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-26 12:03:26,053 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 [2023-11-26 12:03:26,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:26,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:26,096 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,106 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,118 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 [2023-11-26 12:03:26,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:26,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:26,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:26,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-26 12:03:26,148 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,158 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,162 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 [2023-11-26 12:03:26,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:26,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:26,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:26,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-26 12:03:26,200 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,210 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-26 12:03:26,215 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 [2023-11-26 12:03:26,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,231 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:26,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:26,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,262 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,266 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 [2023-11-26 12:03:26,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:26,281 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:26,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-26 12:03:26,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,297 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-26 12:03:26,305 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 [2023-11-26 12:03:26,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:26,320 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:26,330 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,336 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-26 12:03:26,341 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 [2023-11-26 12:03:26,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:26,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:26,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:26,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,378 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-26 12:03:26,389 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 [2023-11-26 12:03:26,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:26,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:26,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:26,421 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,431 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-26 12:03:26,435 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 [2023-11-26 12:03:26,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:26,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:26,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:26,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,481 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,489 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 [2023-11-26 12:03:26,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:26,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,502 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:26,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:26,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-26 12:03:26,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,522 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,526 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 [2023-11-26 12:03:26,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-26 12:03:26,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,538 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:26,538 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:26,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-26 12:03:26,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,555 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-26 12:03:26,559 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 [2023-11-26 12:03:26,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,574 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:26,575 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:26,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,594 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,601 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 [2023-11-26 12:03:26,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:26,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:26,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:26,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-26 12:03:26,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-26 12:03:26,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,625 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-26 12:03:26,629 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 [2023-11-26 12:03:26,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:26,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:26,640 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:26,643 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-26 12:03:26,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,647 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-26 12:03:26,650 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 [2023-11-26 12:03:26,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:26,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:26,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,695 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,705 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:03:26,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-26 12:03:26,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:26,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:26,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,758 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,762 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 [2023-11-26 12:03:26,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-26 12:03:26,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:26,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:26,786 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,796 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,800 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 [2023-11-26 12:03:26,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-26 12:03:26,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:26,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:26,829 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,839 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,843 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 [2023-11-26 12:03:26,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:26,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-26 12:03:26,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:26,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:26,872 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:26,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,877 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-26 12:03:26,885 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 [2023-11-26 12:03:26,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,901 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:26,901 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:26,913 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:26,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-11-26 12:03:26,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:26,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:26,917 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:26,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-26 12:03:26,919 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 [2023-11-26 12:03:26,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:26,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:26,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:26,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:26,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:26,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:26,959 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:03:27,006 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2023-11-26 12:03:27,006 INFO L444 ModelExtractionUtils]: 1 out of 28 variables were initially zero. Simplification set additionally 24 variables to zero. [2023-11-26 12:03:27,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:27,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:27,009 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:27,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-26 12:03:27,014 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:03:27,040 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-26 12:03:27,040 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:03:27,041 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_lis_~N#1, ULTIMATE.start_lis_~i~0#1) = 1*ULTIMATE.start_lis_~N#1 - 1*ULTIMATE.start_lis_~i~0#1 Supporting invariants [] [2023-11-26 12:03:27,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-26 12:03:27,113 INFO L156 tatePredicateManager]: 15 out of 15 supporting invariants were superfluous and have been removed [2023-11-26 12:03:27,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:27,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:03:27,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:27,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:03:27,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:27,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:27,199 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 12:03:27,199 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 29 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2023-11-26 12:03:27,234 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 29 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) Result 24 states and 35 transitions. Complement of second has 7 states. [2023-11-26 12:03:27,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 12:03:27,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2023-11-26 12:03:27,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-11-26 12:03:27,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-26 12:03:27,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:03:27,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-26 12:03:27,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:03:27,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-26 12:03:27,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:03:27,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2023-11-26 12:03:27,241 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2023-11-26 12:03:27,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 22 states and 31 transitions. [2023-11-26 12:03:27,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-26 12:03:27,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-11-26 12:03:27,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 31 transitions. [2023-11-26 12:03:27,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:27,244 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 31 transitions. [2023-11-26 12:03:27,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 31 transitions. [2023-11-26 12:03:27,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-26 12:03:27,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:27,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 31 transitions. [2023-11-26 12:03:27,250 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 31 transitions. [2023-11-26 12:03:27,250 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2023-11-26 12:03:27,250 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 12:03:27,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 31 transitions. [2023-11-26 12:03:27,251 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2023-11-26 12:03:27,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:27,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:27,252 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:27,253 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 12:03:27,254 INFO L748 eck$LassoCheckResult]: Stem: 357#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 348#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 349#L530 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 344#L530-2 call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 337#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 338#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 339#L535-3 assume !(main_~i~1#1 < main_~array_size~0#1); 340#L535-4 havoc main_~i~1#1;assume { :begin_inline_lis } true;lis_#in~a#1.base, lis_#in~a#1.offset, lis_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc lis_#res#1;havoc lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset, lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset, lis_#t~post4#1, lis_#t~mem7#1, lis_#t~mem8#1, lis_#t~mem10#1, lis_#t~mem9#1, lis_#t~short11#1, lis_#t~mem12#1, lis_#t~post6#1, lis_#t~post5#1, lis_#t~mem14#1, lis_#t~mem15#1, lis_#t~post13#1, lis_~a#1.base, lis_~a#1.offset, lis_~N#1, lis_~best~0#1.base, lis_~best~0#1.offset, lis_~prev~0#1.base, lis_~prev~0#1.offset, lis_~i~0#1, lis_~j~0#1, lis_~max~0#1;lis_~a#1.base, lis_~a#1.offset := lis_#in~a#1.base, lis_#in~a#1.offset;lis_~N#1 := lis_#in~N#1;havoc lis_~best~0#1.base, lis_~best~0#1.offset;havoc lis_~prev~0#1.base, lis_~prev~0#1.offset;havoc lis_~i~0#1;havoc lis_~j~0#1;lis_~max~0#1 := 0;call lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~best~0#1.base, lis_~best~0#1.offset := lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset;call lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~prev~0#1.base, lis_~prev~0#1.offset := lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset;lis_~i~0#1 := 0; 356#L517-3 assume !(lis_~i~0#1 < lis_~N#1); 358#L517-4 lis_~i~0#1 := 1; 347#L519-3 [2023-11-26 12:03:27,254 INFO L750 eck$LassoCheckResult]: Loop: 347#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 341#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 342#L519-2 lis_#t~post5#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post5#1;havoc lis_#t~post5#1; 347#L519-3 [2023-11-26 12:03:27,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:27,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1899811625, now seen corresponding path program 1 times [2023-11-26 12:03:27,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:27,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813938000] [2023-11-26 12:03:27,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:27,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:27,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:03:27,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:27,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813938000] [2023-11-26 12:03:27,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813938000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:27,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:27,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:03:27,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895663079] [2023-11-26 12:03:27,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:27,427 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:03:27,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:27,428 INFO L85 PathProgramCache]: Analyzing trace with hash 74687, now seen corresponding path program 1 times [2023-11-26 12:03:27,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:27,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871188886] [2023-11-26 12:03:27,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:27,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:27,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:27,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:27,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:27,491 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:03:27,491 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:03:27,491 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:03:27,492 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:03:27,492 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 12:03:27,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:27,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:03:27,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:03:27,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: lis-alloca-1.i_Iteration4_Loop [2023-11-26 12:03:27,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:03:27,492 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:03:27,493 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:27,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:27,498 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:27,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:27,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:27,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:27,570 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:03:27,571 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 12:03:27,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:27,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:27,574 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:27,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:03:27,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:03:27,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-26 12:03:27,605 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:03:27,606 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_lis_#t~post5#1=0} Honda state: {ULTIMATE.start_lis_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 12:03:27,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:27,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:27,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:27,612 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:27,617 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:03:27,617 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:03:27,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-26 12:03:27,645 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:03:27,645 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PID_3=1} Honda state: {v_rep~unnamed0~0~P_PID_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 12:03:27,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:27,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:27,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:27,655 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:27,661 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:03:27,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:03:27,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-26 12:03:27,685 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:03:27,685 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PGID_3=2} Honda state: {v_rep~unnamed0~0~P_PGID_3=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 12:03:27,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:27,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:27,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:27,694 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:27,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:03:27,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:03:27,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-26 12:03:27,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:27,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:27,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:27,738 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:27,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-26 12:03:27,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 12:03:27,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:03:27,785 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 12:03:27,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:27,789 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:03:27,790 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:03:27,790 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:03:27,790 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:03:27,790 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:03:27,790 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:27,790 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:03:27,790 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:03:27,790 INFO L133 ssoRankerPreferences]: Filename of dumped script: lis-alloca-1.i_Iteration4_Loop [2023-11-26 12:03:27,790 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:03:27,790 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:03:27,791 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:27,796 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:27,799 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:27,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:27,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:27,815 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:27,875 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:03:27,876 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:03:27,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:27,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:27,877 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:27,882 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 [2023-11-26 12:03:27,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:27,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:27,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:27,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:27,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:27,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:27,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:27,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-26 12:03:27,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:27,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:27,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:27,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:27,923 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:27,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:03:27,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:27,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:27,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:27,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:27,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-26 12:03:27,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:27,945 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:27,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:27,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:27,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:27,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:27,972 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:27,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-26 12:03:27,975 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 [2023-11-26 12:03:27,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:27,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:27,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:27,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:27,990 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:27,990 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:28,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:28,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:28,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:28,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:28,026 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:28,029 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 [2023-11-26 12:03:28,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-26 12:03:28,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:28,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:28,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:28,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:28,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:28,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:28,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:28,060 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:03:28,063 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 12:03:28,063 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 12:03:28,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:28,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:28,065 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:28,068 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:03:28,068 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 12:03:28,069 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:03:28,069 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_lis_~i~0#1) = -2*ULTIMATE.start_lis_~i~0#1 + 1 Supporting invariants [] [2023-11-26 12:03:28,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-26 12:03:28,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:28,078 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 12:03:28,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:28,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:03:28,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:28,139 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:03:28,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:28,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:28,176 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 [2023-11-26 12:03:28,177 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 31 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:28,252 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 31 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 67 transitions. Complement of second has 9 states. [2023-11-26 12:03:28,253 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 [2023-11-26 12:03:28,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:28,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2023-11-26 12:03:28,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-26 12:03:28,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:03:28,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 13 letters. Loop has 3 letters. [2023-11-26 12:03:28,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:03:28,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 10 letters. Loop has 6 letters. [2023-11-26 12:03:28,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:03:28,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 67 transitions. [2023-11-26 12:03:28,257 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2023-11-26 12:03:28,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 41 states and 62 transitions. [2023-11-26 12:03:28,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2023-11-26 12:03:28,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2023-11-26 12:03:28,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 62 transitions. [2023-11-26 12:03:28,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:03:28,259 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 62 transitions. [2023-11-26 12:03:28,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 62 transitions. [2023-11-26 12:03:28,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2023-11-26 12:03:28,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 32 states have internal predecessors, (50), 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) [2023-11-26 12:03:28,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 50 transitions. [2023-11-26 12:03:28,262 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 50 transitions. [2023-11-26 12:03:28,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:28,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:03:28,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:03:28,263 INFO L87 Difference]: Start difference. First operand 33 states and 50 transitions. 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) [2023-11-26 12:03:28,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:28,318 INFO L93 Difference]: Finished difference Result 34 states and 50 transitions. [2023-11-26 12:03:28,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2023-11-26 12:03:28,324 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-11-26 12:03:28,326 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 50 transitions. [2023-11-26 12:03:28,326 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2023-11-26 12:03:28,327 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-11-26 12:03:28,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 50 transitions. [2023-11-26 12:03:28,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:03:28,327 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 50 transitions. [2023-11-26 12:03:28,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 50 transitions. [2023-11-26 12:03:28,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2023-11-26 12:03:28,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 49 transitions. [2023-11-26 12:03:28,337 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 49 transitions. [2023-11-26 12:03:28,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:03:28,340 INFO L428 stractBuchiCegarLoop]: Abstraction has 33 states and 49 transitions. [2023-11-26 12:03:28,340 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-26 12:03:28,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 49 transitions. [2023-11-26 12:03:28,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-11-26 12:03:28,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:28,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:28,341 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:28,342 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:28,342 INFO L748 eck$LassoCheckResult]: Stem: 566#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 555#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 556#L530 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 547#L530-2 call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 538#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 539#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 540#L535-3 assume !(main_~i~1#1 < main_~array_size~0#1); 541#L535-4 havoc main_~i~1#1;assume { :begin_inline_lis } true;lis_#in~a#1.base, lis_#in~a#1.offset, lis_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc lis_#res#1;havoc lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset, lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset, lis_#t~post4#1, lis_#t~mem7#1, lis_#t~mem8#1, lis_#t~mem10#1, lis_#t~mem9#1, lis_#t~short11#1, lis_#t~mem12#1, lis_#t~post6#1, lis_#t~post5#1, lis_#t~mem14#1, lis_#t~mem15#1, lis_#t~post13#1, lis_~a#1.base, lis_~a#1.offset, lis_~N#1, lis_~best~0#1.base, lis_~best~0#1.offset, lis_~prev~0#1.base, lis_~prev~0#1.offset, lis_~i~0#1, lis_~j~0#1, lis_~max~0#1;lis_~a#1.base, lis_~a#1.offset := lis_#in~a#1.base, lis_#in~a#1.offset;lis_~N#1 := lis_#in~N#1;havoc lis_~best~0#1.base, lis_~best~0#1.offset;havoc lis_~prev~0#1.base, lis_~prev~0#1.offset;havoc lis_~i~0#1;havoc lis_~j~0#1;lis_~max~0#1 := 0;call lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~best~0#1.base, lis_~best~0#1.offset := lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset;call lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~prev~0#1.base, lis_~prev~0#1.offset := lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset;lis_~i~0#1 := 0; 565#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 557#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 558#L517-3 assume !(lis_~i~0#1 < lis_~N#1); 567#L517-4 lis_~i~0#1 := 1; 568#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 542#L520-3 [2023-11-26 12:03:28,342 INFO L750 eck$LassoCheckResult]: Loop: 542#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 543#L521 assume lis_#t~short11#1;call lis_#t~mem10#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem9#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem10#1 < 1 + lis_#t~mem9#1; 548#L521-2 assume !lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1; 549#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 561#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 552#L519-2 lis_#t~post5#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post5#1;havoc lis_#t~post5#1; 553#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 542#L520-3 [2023-11-26 12:03:28,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:28,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1792663252, now seen corresponding path program 1 times [2023-11-26 12:03:28,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:28,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215017853] [2023-11-26 12:03:28,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:28,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:28,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:28,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:28,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215017853] [2023-11-26 12:03:28,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215017853] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:03:28,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868105406] [2023-11-26 12:03:28,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:28,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:03:28,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:28,547 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:03:28,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-26 12:03:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:28,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:03:28,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:03:28,701 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:03:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:03:28,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868105406] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:03:28,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:03:28,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-11-26 12:03:28,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654903479] [2023-11-26 12:03:28,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:03:28,764 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:03:28,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:28,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1094746892, now seen corresponding path program 1 times [2023-11-26 12:03:28,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:28,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363582406] [2023-11-26 12:03:28,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:28,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:28,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:28,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:29,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:29,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 12:03:29,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:03:29,002 INFO L87 Difference]: Start difference. First operand 33 states and 49 transitions. cyclomatic complexity: 21 Second operand has 11 states, 10 states have (on average 2.3) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:29,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:29,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:29,387 INFO L93 Difference]: Finished difference Result 81 states and 109 transitions. [2023-11-26 12:03:29,387 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 109 transitions. [2023-11-26 12:03:29,389 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2023-11-26 12:03:29,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 58 states and 81 transitions. [2023-11-26 12:03:29,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2023-11-26 12:03:29,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2023-11-26 12:03:29,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 81 transitions. [2023-11-26 12:03:29,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:03:29,390 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 81 transitions. [2023-11-26 12:03:29,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 81 transitions. [2023-11-26 12:03:29,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 37. [2023-11-26 12:03:29,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 36 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:29,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2023-11-26 12:03:29,394 INFO L240 hiAutomatonCegarLoop]: Abstraction has 37 states and 51 transitions. [2023-11-26 12:03:29,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 12:03:29,395 INFO L428 stractBuchiCegarLoop]: Abstraction has 37 states and 51 transitions. [2023-11-26 12:03:29,396 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-26 12:03:29,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 51 transitions. [2023-11-26 12:03:29,396 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-11-26 12:03:29,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:29,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:29,398 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:29,398 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:29,398 INFO L748 eck$LassoCheckResult]: Stem: 793#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 781#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 782#L530 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 773#L530-2 call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 764#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 765#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 766#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 767#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 797#L535-3 assume !(main_~i~1#1 < main_~array_size~0#1); 791#L535-4 havoc main_~i~1#1;assume { :begin_inline_lis } true;lis_#in~a#1.base, lis_#in~a#1.offset, lis_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc lis_#res#1;havoc lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset, lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset, lis_#t~post4#1, lis_#t~mem7#1, lis_#t~mem8#1, lis_#t~mem10#1, lis_#t~mem9#1, lis_#t~short11#1, lis_#t~mem12#1, lis_#t~post6#1, lis_#t~post5#1, lis_#t~mem14#1, lis_#t~mem15#1, lis_#t~post13#1, lis_~a#1.base, lis_~a#1.offset, lis_~N#1, lis_~best~0#1.base, lis_~best~0#1.offset, lis_~prev~0#1.base, lis_~prev~0#1.offset, lis_~i~0#1, lis_~j~0#1, lis_~max~0#1;lis_~a#1.base, lis_~a#1.offset := lis_#in~a#1.base, lis_#in~a#1.offset;lis_~N#1 := lis_#in~N#1;havoc lis_~best~0#1.base, lis_~best~0#1.offset;havoc lis_~prev~0#1.base, lis_~prev~0#1.offset;havoc lis_~i~0#1;havoc lis_~j~0#1;lis_~max~0#1 := 0;call lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~best~0#1.base, lis_~best~0#1.offset := lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset;call lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~prev~0#1.base, lis_~prev~0#1.offset := lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset;lis_~i~0#1 := 0; 792#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 783#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 784#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 796#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 798#L517-3 assume !(lis_~i~0#1 < lis_~N#1); 794#L517-4 lis_~i~0#1 := 1; 785#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 768#L520-3 [2023-11-26 12:03:29,398 INFO L750 eck$LassoCheckResult]: Loop: 768#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 769#L521 assume lis_#t~short11#1;call lis_#t~mem10#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem9#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem10#1 < 1 + lis_#t~mem9#1; 774#L521-2 assume !lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1; 775#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 787#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 778#L519-2 lis_#t~post5#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post5#1;havoc lis_#t~post5#1; 779#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 768#L520-3 [2023-11-26 12:03:29,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:29,399 INFO L85 PathProgramCache]: Analyzing trace with hash 37388752, now seen corresponding path program 2 times [2023-11-26 12:03:29,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:29,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893446661] [2023-11-26 12:03:29,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:29,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:29,429 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:29,453 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:29,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:29,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1094746892, now seen corresponding path program 2 times [2023-11-26 12:03:29,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:29,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535244453] [2023-11-26 12:03:29,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:29,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:29,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:29,471 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:29,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:29,472 INFO L85 PathProgramCache]: Analyzing trace with hash 502604869, now seen corresponding path program 1 times [2023-11-26 12:03:29,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:29,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983957654] [2023-11-26 12:03:29,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:29,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:29,675 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 12:03:29,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:29,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983957654] [2023-11-26 12:03:29,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983957654] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:03:29,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648573889] [2023-11-26 12:03:29,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:29,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:03:29,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:29,677 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:03:29,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-26 12:03:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:29,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 12:03:29,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:29,933 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 12:03:29,933 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:03:30,014 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 12:03:30,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648573889] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:03:30,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:03:30,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2023-11-26 12:03:30,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425787846] [2023-11-26 12:03:30,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:03:30,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:30,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 12:03:30,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-26 12:03:30,243 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. cyclomatic complexity: 19 Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 13 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) [2023-11-26 12:03:30,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:30,440 INFO L93 Difference]: Finished difference Result 68 states and 92 transitions. [2023-11-26 12:03:30,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 92 transitions. [2023-11-26 12:03:30,441 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 17 [2023-11-26 12:03:30,441 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 62 states and 83 transitions. [2023-11-26 12:03:30,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2023-11-26 12:03:30,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2023-11-26 12:03:30,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 83 transitions. [2023-11-26 12:03:30,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:03:30,442 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 83 transitions. [2023-11-26 12:03:30,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 83 transitions. [2023-11-26 12:03:30,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 55. [2023-11-26 12:03:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 54 states have internal predecessors, (75), 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) [2023-11-26 12:03:30,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions. [2023-11-26 12:03:30,447 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 75 transitions. [2023-11-26 12:03:30,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 12:03:30,448 INFO L428 stractBuchiCegarLoop]: Abstraction has 55 states and 75 transitions. [2023-11-26 12:03:30,448 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-26 12:03:30,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 75 transitions. [2023-11-26 12:03:30,449 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2023-11-26 12:03:30,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:30,449 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:30,449 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:30,449 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 12:03:30,450 INFO L748 eck$LassoCheckResult]: Stem: 1066#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1053#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 1054#L530 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 1045#L530-2 call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 1035#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 1036#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 1082#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 1081#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 1080#L535-3 assume !(main_~i~1#1 < main_~array_size~0#1); 1079#L535-4 havoc main_~i~1#1;assume { :begin_inline_lis } true;lis_#in~a#1.base, lis_#in~a#1.offset, lis_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc lis_#res#1;havoc lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset, lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset, lis_#t~post4#1, lis_#t~mem7#1, lis_#t~mem8#1, lis_#t~mem10#1, lis_#t~mem9#1, lis_#t~short11#1, lis_#t~mem12#1, lis_#t~post6#1, lis_#t~post5#1, lis_#t~mem14#1, lis_#t~mem15#1, lis_#t~post13#1, lis_~a#1.base, lis_~a#1.offset, lis_~N#1, lis_~best~0#1.base, lis_~best~0#1.offset, lis_~prev~0#1.base, lis_~prev~0#1.offset, lis_~i~0#1, lis_~j~0#1, lis_~max~0#1;lis_~a#1.base, lis_~a#1.offset := lis_#in~a#1.base, lis_#in~a#1.offset;lis_~N#1 := lis_#in~N#1;havoc lis_~best~0#1.base, lis_~best~0#1.offset;havoc lis_~prev~0#1.base, lis_~prev~0#1.offset;havoc lis_~i~0#1;havoc lis_~j~0#1;lis_~max~0#1 := 0;call lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~best~0#1.base, lis_~best~0#1.offset := lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset;call lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~prev~0#1.base, lis_~prev~0#1.offset := lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset;lis_~i~0#1 := 0; 1069#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1070#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 1071#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1055#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 1056#L517-3 assume !(lis_~i~0#1 < lis_~N#1); 1067#L517-4 lis_~i~0#1 := 1; 1057#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 1058#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 1063#L521 [2023-11-26 12:03:30,450 INFO L750 eck$LassoCheckResult]: Loop: 1063#L521 assume lis_#t~short11#1;call lis_#t~mem10#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem9#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem10#1 < 1 + lis_#t~mem9#1; 1046#L521-2 assume !lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1; 1047#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 1059#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 1063#L521 [2023-11-26 12:03:30,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:30,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1159051365, now seen corresponding path program 1 times [2023-11-26 12:03:30,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:30,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227818085] [2023-11-26 12:03:30,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:30,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:30,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:30,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:30,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:30,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2655420, now seen corresponding path program 1 times [2023-11-26 12:03:30,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:30,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331769264] [2023-11-26 12:03:30,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:30,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:30,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:30,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:30,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:30,530 INFO L85 PathProgramCache]: Analyzing trace with hash -651990240, now seen corresponding path program 1 times [2023-11-26 12:03:30,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:30,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179582648] [2023-11-26 12:03:30,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:30,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:30,724 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:03:30,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:30,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179582648] [2023-11-26 12:03:30,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179582648] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:03:30,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985348488] [2023-11-26 12:03:30,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:30,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:03:30,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:30,732 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:03:30,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-26 12:03:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:30,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:03:30,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 12:03:30,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:30,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985348488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:30,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:03:30,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-26 12:03:30,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895656162] [2023-11-26 12:03:30,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:31,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:31,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:03:31,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:03:31,169 INFO L87 Difference]: Start difference. First operand 55 states and 75 transitions. cyclomatic complexity: 27 Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2023-11-26 12:03:31,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:31,231 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2023-11-26 12:03:31,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 97 transitions. [2023-11-26 12:03:31,232 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-11-26 12:03:31,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 72 states and 97 transitions. [2023-11-26 12:03:31,233 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2023-11-26 12:03:31,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2023-11-26 12:03:31,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 97 transitions. [2023-11-26 12:03:31,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:03:31,234 INFO L218 hiAutomatonCegarLoop]: Abstraction has 72 states and 97 transitions. [2023-11-26 12:03:31,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 97 transitions. [2023-11-26 12:03:31,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2023-11-26 12:03:31,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 64 states have (on average 1.375) internal successors, (88), 63 states have internal predecessors, (88), 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) [2023-11-26 12:03:31,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 88 transitions. [2023-11-26 12:03:31,238 INFO L240 hiAutomatonCegarLoop]: Abstraction has 64 states and 88 transitions. [2023-11-26 12:03:31,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:03:31,242 INFO L428 stractBuchiCegarLoop]: Abstraction has 64 states and 88 transitions. [2023-11-26 12:03:31,242 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-26 12:03:31,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 64 states and 88 transitions. [2023-11-26 12:03:31,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-11-26 12:03:31,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:31,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:31,244 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:31,244 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 12:03:31,244 INFO L748 eck$LassoCheckResult]: Stem: 1274#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1258#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 1259#L530 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 1251#L530-2 call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 1242#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 1243#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 1297#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 1295#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 1292#L535-3 assume !(main_~i~1#1 < main_~array_size~0#1); 1291#L535-4 havoc main_~i~1#1;assume { :begin_inline_lis } true;lis_#in~a#1.base, lis_#in~a#1.offset, lis_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc lis_#res#1;havoc lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset, lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset, lis_#t~post4#1, lis_#t~mem7#1, lis_#t~mem8#1, lis_#t~mem10#1, lis_#t~mem9#1, lis_#t~short11#1, lis_#t~mem12#1, lis_#t~post6#1, lis_#t~post5#1, lis_#t~mem14#1, lis_#t~mem15#1, lis_#t~post13#1, lis_~a#1.base, lis_~a#1.offset, lis_~N#1, lis_~best~0#1.base, lis_~best~0#1.offset, lis_~prev~0#1.base, lis_~prev~0#1.offset, lis_~i~0#1, lis_~j~0#1, lis_~max~0#1;lis_~a#1.base, lis_~a#1.offset := lis_#in~a#1.base, lis_#in~a#1.offset;lis_~N#1 := lis_#in~N#1;havoc lis_~best~0#1.base, lis_~best~0#1.offset;havoc lis_~prev~0#1.base, lis_~prev~0#1.offset;havoc lis_~i~0#1;havoc lis_~j~0#1;lis_~max~0#1 := 0;call lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~best~0#1.base, lis_~best~0#1.offset := lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset;call lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~prev~0#1.base, lis_~prev~0#1.offset := lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset;lis_~i~0#1 := 0; 1277#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1260#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 1261#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1278#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 1299#L517-3 assume !(lis_~i~0#1 < lis_~N#1); 1275#L517-4 lis_~i~0#1 := 1; 1262#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 1263#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 1302#L519-2 lis_#t~post5#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post5#1;havoc lis_#t~post5#1; 1279#L519-3 assume !(lis_~i~0#1 < lis_~N#1); 1276#L519-4 lis_~i~0#1 := 0; 1270#L523-3 [2023-11-26 12:03:31,244 INFO L750 eck$LassoCheckResult]: Loop: 1270#L523-3 assume !!(lis_~i~0#1 < lis_~N#1);call lis_#t~mem14#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4); 1271#L524 assume lis_~max~0#1 < lis_#t~mem14#1;havoc lis_#t~mem14#1;call lis_#t~mem15#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);lis_~max~0#1 := lis_#t~mem15#1;havoc lis_#t~mem15#1; 1272#L523-2 lis_#t~post13#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post13#1;havoc lis_#t~post13#1; 1270#L523-3 [2023-11-26 12:03:31,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:31,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2057131266, now seen corresponding path program 1 times [2023-11-26 12:03:31,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:31,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952939871] [2023-11-26 12:03:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:31,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:31,305 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 12:03:31,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:31,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952939871] [2023-11-26 12:03:31,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952939871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:31,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:31,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:03:31,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373928557] [2023-11-26 12:03:31,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:31,307 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:03:31,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:31,307 INFO L85 PathProgramCache]: Analyzing trace with hash 111317, now seen corresponding path program 1 times [2023-11-26 12:03:31,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:31,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567875187] [2023-11-26 12:03:31,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:31,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:31,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:31,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:31,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:31,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:03:31,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:03:31,370 INFO L87 Difference]: Start difference. First operand 64 states and 88 transitions. cyclomatic complexity: 30 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:31,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:31,416 INFO L93 Difference]: Finished difference Result 67 states and 89 transitions. [2023-11-26 12:03:31,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 89 transitions. [2023-11-26 12:03:31,417 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-11-26 12:03:31,418 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 66 states and 88 transitions. [2023-11-26 12:03:31,418 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2023-11-26 12:03:31,419 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2023-11-26 12:03:31,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 88 transitions. [2023-11-26 12:03:31,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:03:31,419 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 88 transitions. [2023-11-26 12:03:31,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 88 transitions. [2023-11-26 12:03:31,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2023-11-26 12:03:31,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 64 states have (on average 1.34375) internal successors, (86), 63 states have internal predecessors, (86), 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) [2023-11-26 12:03:31,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 86 transitions. [2023-11-26 12:03:31,424 INFO L240 hiAutomatonCegarLoop]: Abstraction has 64 states and 86 transitions. [2023-11-26 12:03:31,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:03:31,425 INFO L428 stractBuchiCegarLoop]: Abstraction has 64 states and 86 transitions. [2023-11-26 12:03:31,425 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-26 12:03:31,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 64 states and 86 transitions. [2023-11-26 12:03:31,426 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-11-26 12:03:31,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:31,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:31,427 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:31,427 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:31,427 INFO L748 eck$LassoCheckResult]: Stem: 1411#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1395#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 1396#L530 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 1388#L530-2 call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 1380#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 1381#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 1382#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 1383#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 1434#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 1435#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 1436#L535-3 assume !(main_~i~1#1 < main_~array_size~0#1); 1433#L535-4 havoc main_~i~1#1;assume { :begin_inline_lis } true;lis_#in~a#1.base, lis_#in~a#1.offset, lis_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc lis_#res#1;havoc lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset, lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset, lis_#t~post4#1, lis_#t~mem7#1, lis_#t~mem8#1, lis_#t~mem10#1, lis_#t~mem9#1, lis_#t~short11#1, lis_#t~mem12#1, lis_#t~post6#1, lis_#t~post5#1, lis_#t~mem14#1, lis_#t~mem15#1, lis_#t~post13#1, lis_~a#1.base, lis_~a#1.offset, lis_~N#1, lis_~best~0#1.base, lis_~best~0#1.offset, lis_~prev~0#1.base, lis_~prev~0#1.offset, lis_~i~0#1, lis_~j~0#1, lis_~max~0#1;lis_~a#1.base, lis_~a#1.offset := lis_#in~a#1.base, lis_#in~a#1.offset;lis_~N#1 := lis_#in~N#1;havoc lis_~best~0#1.base, lis_~best~0#1.offset;havoc lis_~prev~0#1.base, lis_~prev~0#1.offset;havoc lis_~i~0#1;havoc lis_~j~0#1;lis_~max~0#1 := 0;call lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~best~0#1.base, lis_~best~0#1.offset := lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset;call lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~prev~0#1.base, lis_~prev~0#1.offset := lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset;lis_~i~0#1 := 0; 1432#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1397#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 1398#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1415#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 1428#L517-3 assume !(lis_~i~0#1 < lis_~N#1); 1427#L517-4 lis_~i~0#1 := 1; 1424#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 1425#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 1443#L521 assume !lis_#t~short11#1; 1442#L521-2 assume lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1;call lis_#t~mem12#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);call write~int#1(1 + lis_#t~mem12#1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);havoc lis_#t~mem12#1;call write~int#2(lis_~j~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1441#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 1384#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 1385#L519-2 [2023-11-26 12:03:31,427 INFO L750 eck$LassoCheckResult]: Loop: 1385#L519-2 lis_#t~post5#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post5#1;havoc lis_#t~post5#1; 1393#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 1418#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 1439#L521 assume lis_#t~short11#1;call lis_#t~mem10#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem9#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem10#1 < 1 + lis_#t~mem9#1; 1438#L521-2 assume !lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1; 1402#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 1403#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 1385#L519-2 [2023-11-26 12:03:31,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:31,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1034472260, now seen corresponding path program 1 times [2023-11-26 12:03:31,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:31,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728736510] [2023-11-26 12:03:31,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:31,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:31,478 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-26 12:03:31,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:31,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728736510] [2023-11-26 12:03:31,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728736510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:31,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:31,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:03:31,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985454221] [2023-11-26 12:03:31,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:31,479 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:03:31,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:31,480 INFO L85 PathProgramCache]: Analyzing trace with hash 782548870, now seen corresponding path program 3 times [2023-11-26 12:03:31,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:31,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134457272] [2023-11-26 12:03:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:31,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:31,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:31,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:31,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:31,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:31,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:31,698 INFO L87 Difference]: Start difference. First operand 64 states and 86 transitions. cyclomatic complexity: 28 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-26 12:03:31,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:31,710 INFO L93 Difference]: Finished difference Result 69 states and 91 transitions. [2023-11-26 12:03:31,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 91 transitions. [2023-11-26 12:03:31,711 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-11-26 12:03:31,711 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 69 states and 91 transitions. [2023-11-26 12:03:31,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2023-11-26 12:03:31,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2023-11-26 12:03:31,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 91 transitions. [2023-11-26 12:03:31,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:03:31,712 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 91 transitions. [2023-11-26 12:03:31,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 91 transitions. [2023-11-26 12:03:31,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-11-26 12:03:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.318840579710145) internal successors, (91), 68 states have internal predecessors, (91), 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) [2023-11-26 12:03:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2023-11-26 12:03:31,717 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 91 transitions. [2023-11-26 12:03:31,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:31,723 INFO L428 stractBuchiCegarLoop]: Abstraction has 69 states and 91 transitions. [2023-11-26 12:03:31,723 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-26 12:03:31,723 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 91 transitions. [2023-11-26 12:03:31,724 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-11-26 12:03:31,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:31,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:31,725 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:31,725 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:31,725 INFO L748 eck$LassoCheckResult]: Stem: 1555#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1535#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 1536#L530 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 1527#L530-2 call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 1519#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 1520#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 1521#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 1522#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 1578#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 1577#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 1576#L535-3 assume !(main_~i~1#1 < main_~array_size~0#1); 1575#L535-4 havoc main_~i~1#1;assume { :begin_inline_lis } true;lis_#in~a#1.base, lis_#in~a#1.offset, lis_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc lis_#res#1;havoc lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset, lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset, lis_#t~post4#1, lis_#t~mem7#1, lis_#t~mem8#1, lis_#t~mem10#1, lis_#t~mem9#1, lis_#t~short11#1, lis_#t~mem12#1, lis_#t~post6#1, lis_#t~post5#1, lis_#t~mem14#1, lis_#t~mem15#1, lis_#t~post13#1, lis_~a#1.base, lis_~a#1.offset, lis_~N#1, lis_~best~0#1.base, lis_~best~0#1.offset, lis_~prev~0#1.base, lis_~prev~0#1.offset, lis_~i~0#1, lis_~j~0#1, lis_~max~0#1;lis_~a#1.base, lis_~a#1.offset := lis_#in~a#1.base, lis_#in~a#1.offset;lis_~N#1 := lis_#in~N#1;havoc lis_~best~0#1.base, lis_~best~0#1.offset;havoc lis_~prev~0#1.base, lis_~prev~0#1.offset;havoc lis_~i~0#1;havoc lis_~j~0#1;lis_~max~0#1 := 0;call lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~best~0#1.base, lis_~best~0#1.offset := lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset;call lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~prev~0#1.base, lis_~prev~0#1.offset := lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset;lis_~i~0#1 := 0; 1573#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1572#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 1571#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1570#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 1569#L517-3 assume !(lis_~i~0#1 < lis_~N#1); 1568#L517-4 lis_~i~0#1 := 1; 1566#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 1523#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 1524#L521 assume lis_#t~short11#1;call lis_#t~mem10#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem9#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem10#1 < 1 + lis_#t~mem9#1; 1587#L521-2 assume lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1;call lis_#t~mem12#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);call write~int#1(1 + lis_#t~mem12#1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);havoc lis_#t~mem12#1;call write~int#2(lis_~j~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1542#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 1543#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 1532#L519-2 [2023-11-26 12:03:31,725 INFO L750 eck$LassoCheckResult]: Loop: 1532#L519-2 lis_#t~post5#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post5#1;havoc lis_#t~post5#1; 1533#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 1561#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 1580#L521 assume !lis_#t~short11#1; 1582#L521-2 assume !lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1; 1581#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 1579#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 1532#L519-2 [2023-11-26 12:03:31,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1034531842, now seen corresponding path program 1 times [2023-11-26 12:03:31,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:31,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207367748] [2023-11-26 12:03:31,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:31,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:03:31,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:31,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207367748] [2023-11-26 12:03:31,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207367748] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:03:31,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547894466] [2023-11-26 12:03:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:31,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:03:31,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:31,960 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:03:31,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-26 12:03:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:32,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 12:03:32,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:03:32,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:03:32,245 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:03:32,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547894466] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:03:32,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:03:32,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2023-11-26 12:03:32,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031900948] [2023-11-26 12:03:32,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:03:32,246 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:03:32,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:32,246 INFO L85 PathProgramCache]: Analyzing trace with hash 782608452, now seen corresponding path program 1 times [2023-11-26 12:03:32,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:32,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164527298] [2023-11-26 12:03:32,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:32,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:32,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:32,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:32,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:32,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 12:03:32,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-26 12:03:32,380 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. cyclomatic complexity: 28 Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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) [2023-11-26 12:03:32,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:32,685 INFO L93 Difference]: Finished difference Result 76 states and 99 transitions. [2023-11-26 12:03:32,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 99 transitions. [2023-11-26 12:03:32,687 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2023-11-26 12:03:32,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 76 states and 99 transitions. [2023-11-26 12:03:32,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2023-11-26 12:03:32,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2023-11-26 12:03:32,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 99 transitions. [2023-11-26 12:03:32,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:03:32,690 INFO L218 hiAutomatonCegarLoop]: Abstraction has 76 states and 99 transitions. [2023-11-26 12:03:32,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 99 transitions. [2023-11-26 12:03:32,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2023-11-26 12:03:32,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 70 states have internal predecessors, (93), 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) [2023-11-26 12:03:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 93 transitions. [2023-11-26 12:03:32,699 INFO L240 hiAutomatonCegarLoop]: Abstraction has 71 states and 93 transitions. [2023-11-26 12:03:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:03:32,705 INFO L428 stractBuchiCegarLoop]: Abstraction has 71 states and 93 transitions. [2023-11-26 12:03:32,705 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-26 12:03:32,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 93 transitions. [2023-11-26 12:03:32,706 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-11-26 12:03:32,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:32,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:32,707 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:32,707 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 12:03:32,708 INFO L748 eck$LassoCheckResult]: Stem: 1864#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1846#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 1847#L530 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 1837#L530-2 call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 1829#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 1830#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 1831#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 1832#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 1879#L535-3 assume !(main_~i~1#1 < main_~array_size~0#1); 1881#L535-4 havoc main_~i~1#1;assume { :begin_inline_lis } true;lis_#in~a#1.base, lis_#in~a#1.offset, lis_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc lis_#res#1;havoc lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset, lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset, lis_#t~post4#1, lis_#t~mem7#1, lis_#t~mem8#1, lis_#t~mem10#1, lis_#t~mem9#1, lis_#t~short11#1, lis_#t~mem12#1, lis_#t~post6#1, lis_#t~post5#1, lis_#t~mem14#1, lis_#t~mem15#1, lis_#t~post13#1, lis_~a#1.base, lis_~a#1.offset, lis_~N#1, lis_~best~0#1.base, lis_~best~0#1.offset, lis_~prev~0#1.base, lis_~prev~0#1.offset, lis_~i~0#1, lis_~j~0#1, lis_~max~0#1;lis_~a#1.base, lis_~a#1.offset := lis_#in~a#1.base, lis_#in~a#1.offset;lis_~N#1 := lis_#in~N#1;havoc lis_~best~0#1.base, lis_~best~0#1.offset;havoc lis_~prev~0#1.base, lis_~prev~0#1.offset;havoc lis_~i~0#1;havoc lis_~j~0#1;lis_~max~0#1 := 0;call lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~best~0#1.base, lis_~best~0#1.offset := lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset;call lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~prev~0#1.base, lis_~prev~0#1.offset := lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset;lis_~i~0#1 := 0; 1867#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1868#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 1885#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1884#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 1883#L517-3 assume !(lis_~i~0#1 < lis_~N#1); 1865#L517-4 lis_~i~0#1 := 1; 1850#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 1851#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 1895#L521 assume lis_#t~short11#1;call lis_#t~mem10#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem9#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem10#1 < 1 + lis_#t~mem9#1; 1893#L521-2 assume lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1;call lis_#t~mem12#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);call write~int#1(1 + lis_#t~mem12#1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);havoc lis_#t~mem12#1;call write~int#2(lis_~j~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 1892#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 1891#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 1890#L519-2 lis_#t~post5#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post5#1;havoc lis_#t~post5#1; 1887#L519-3 assume !(lis_~i~0#1 < lis_~N#1); 1866#L519-4 lis_~i~0#1 := 0; 1859#L523-3 [2023-11-26 12:03:32,708 INFO L750 eck$LassoCheckResult]: Loop: 1859#L523-3 assume !!(lis_~i~0#1 < lis_~N#1);call lis_#t~mem14#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4); 1860#L524 assume lis_~max~0#1 < lis_#t~mem14#1;havoc lis_#t~mem14#1;call lis_#t~mem15#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);lis_~max~0#1 := lis_#t~mem15#1;havoc lis_#t~mem15#1; 1861#L523-2 lis_#t~post13#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post13#1;havoc lis_#t~post13#1; 1859#L523-3 [2023-11-26 12:03:32,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:32,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1656376535, now seen corresponding path program 1 times [2023-11-26 12:03:32,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:32,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393831665] [2023-11-26 12:03:32,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:32,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:32,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:32,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:32,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:32,765 INFO L85 PathProgramCache]: Analyzing trace with hash 111317, now seen corresponding path program 2 times [2023-11-26 12:03:32,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:32,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553389334] [2023-11-26 12:03:32,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:32,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:32,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:32,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:32,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:32,774 INFO L85 PathProgramCache]: Analyzing trace with hash -234008915, now seen corresponding path program 1 times [2023-11-26 12:03:32,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:32,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092274886] [2023-11-26 12:03:32,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:32,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:32,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:32,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:38,845 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:03:38,846 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:03:38,846 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:03:38,846 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:03:38,846 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:03:38,846 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:38,846 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:03:38,846 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:03:38,846 INFO L133 ssoRankerPreferences]: Filename of dumped script: lis-alloca-1.i_Iteration11_Lasso [2023-11-26 12:03:38,846 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:03:38,846 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:03:38,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:38,858 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:38,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:38,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:38,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:38,868 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,729 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,739 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,744 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,749 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,752 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,759 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,765 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,767 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,770 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,773 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,778 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,781 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,785 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:39,788 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:03:40,347 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:03:40,347 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:03:40,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:40,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:40,351 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:40,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-26 12:03:40,355 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 [2023-11-26 12:03:40,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:40,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:40,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:40,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:40,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:40,366 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:40,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:40,377 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:40,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:40,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:40,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:40,382 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:40,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-26 12:03:40,386 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 [2023-11-26 12:03:40,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:40,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:40,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:40,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:40,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:40,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:40,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:40,398 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:40,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-11-26 12:03:40,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:40,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:40,402 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:40,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-26 12:03:40,405 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 [2023-11-26 12:03:40,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:40,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:40,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:40,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:40,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:40,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:40,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:40,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:40,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2023-11-26 12:03:40,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:40,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:40,423 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:40,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-26 12:03:40,425 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 [2023-11-26 12:03:40,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:40,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:40,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:40,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:40,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:40,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:40,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:40,438 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:40,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2023-11-26 12:03:40,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:40,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:40,443 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:40,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-26 12:03:40,447 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 [2023-11-26 12:03:40,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:40,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:03:40,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:40,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:40,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:40,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:03:40,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:03:40,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:40,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:40,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:40,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:40,466 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:40,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-26 12:03:40,478 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 [2023-11-26 12:03:40,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:40,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:40,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:40,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:40,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:40,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:40,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:40,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:40,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:40,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:40,501 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:40,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-26 12:03:40,504 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 [2023-11-26 12:03:40,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:40,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:40,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:40,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:40,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:40,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:40,532 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:40,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-11-26 12:03:40,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:40,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:40,537 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:40,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-26 12:03:40,540 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 [2023-11-26 12:03:40,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:40,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:40,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:40,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:40,553 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:40,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:40,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:03:40,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2023-11-26 12:03:40,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:40,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:40,564 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:40,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-26 12:03:40,568 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 [2023-11-26 12:03:40,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:03:40,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:03:40,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:03:40,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:03:40,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:03:40,587 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:03:40,601 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:03:40,655 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2023-11-26 12:03:40,655 INFO L444 ModelExtractionUtils]: 1 out of 19 variables were initially zero. Simplification set additionally 15 variables to zero. [2023-11-26 12:03:40,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:03:40,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:40,660 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:40,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-26 12:03:40,663 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:03:40,675 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-26 12:03:40,675 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:03:40,675 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_lis_~best~0#1.base)_2, ULTIMATE.start_lis_~i~0#1) = 3*v_rep(select #length ULTIMATE.start_lis_~best~0#1.base)_2 - 8*ULTIMATE.start_lis_~i~0#1 Supporting invariants [] [2023-11-26 12:03:40,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:40,796 INFO L156 tatePredicateManager]: 20 out of 21 supporting invariants were superfluous and have been removed [2023-11-26 12:03:40,799 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[~best~0!base] could not be translated [2023-11-26 12:03:40,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:40,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 12:03:40,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:41,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 12:03:41,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:41,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:41,100 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2023-11-26 12:03:41,101 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 93 transitions. cyclomatic complexity: 28 Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 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) [2023-11-26 12:03:41,312 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 93 transitions. cyclomatic complexity: 28. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 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) Result 81 states and 107 transitions. Complement of second has 12 states. [2023-11-26 12:03:41,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2023-11-26 12:03:41,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 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) [2023-11-26 12:03:41,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 50 transitions. [2023-11-26 12:03:41,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 50 transitions. Stem has 25 letters. Loop has 3 letters. [2023-11-26 12:03:41,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:03:41,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 50 transitions. Stem has 28 letters. Loop has 3 letters. [2023-11-26 12:03:41,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:03:41,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 50 transitions. Stem has 25 letters. Loop has 6 letters. [2023-11-26 12:03:41,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:03:41,315 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 107 transitions. [2023-11-26 12:03:41,316 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-11-26 12:03:41,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 58 states and 77 transitions. [2023-11-26 12:03:41,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2023-11-26 12:03:41,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2023-11-26 12:03:41,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 77 transitions. [2023-11-26 12:03:41,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:03:41,318 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 77 transitions. [2023-11-26 12:03:41,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 77 transitions. [2023-11-26 12:03:41,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2023-11-26 12:03:41,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 54 states have internal predecessors, (73), 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) [2023-11-26 12:03:41,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 73 transitions. [2023-11-26 12:03:41,323 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 73 transitions. [2023-11-26 12:03:41,323 INFO L428 stractBuchiCegarLoop]: Abstraction has 55 states and 73 transitions. [2023-11-26 12:03:41,323 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2023-11-26 12:03:41,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 73 transitions. [2023-11-26 12:03:41,324 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-11-26 12:03:41,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:41,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:41,325 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:41,325 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:41,326 INFO L748 eck$LassoCheckResult]: Stem: 2230#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2215#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 2216#L530 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 2205#L530-2 call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 2197#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 2198#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 2242#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 2214#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 2199#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 2200#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 2234#L535-3 assume !(main_~i~1#1 < main_~array_size~0#1); 2228#L535-4 havoc main_~i~1#1;assume { :begin_inline_lis } true;lis_#in~a#1.base, lis_#in~a#1.offset, lis_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc lis_#res#1;havoc lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset, lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset, lis_#t~post4#1, lis_#t~mem7#1, lis_#t~mem8#1, lis_#t~mem10#1, lis_#t~mem9#1, lis_#t~short11#1, lis_#t~mem12#1, lis_#t~post6#1, lis_#t~post5#1, lis_#t~mem14#1, lis_#t~mem15#1, lis_#t~post13#1, lis_~a#1.base, lis_~a#1.offset, lis_~N#1, lis_~best~0#1.base, lis_~best~0#1.offset, lis_~prev~0#1.base, lis_~prev~0#1.offset, lis_~i~0#1, lis_~j~0#1, lis_~max~0#1;lis_~a#1.base, lis_~a#1.offset := lis_#in~a#1.base, lis_#in~a#1.offset;lis_~N#1 := lis_#in~N#1;havoc lis_~best~0#1.base, lis_~best~0#1.offset;havoc lis_~prev~0#1.base, lis_~prev~0#1.offset;havoc lis_~i~0#1;havoc lis_~j~0#1;lis_~max~0#1 := 0;call lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~best~0#1.base, lis_~best~0#1.offset := lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset;call lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~prev~0#1.base, lis_~prev~0#1.offset := lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset;lis_~i~0#1 := 0; 2229#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 2217#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 2218#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 2233#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 2240#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 2236#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 2235#L517-3 assume !(lis_~i~0#1 < lis_~N#1); 2231#L517-4 lis_~i~0#1 := 1; 2219#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 2201#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 2202#L521 assume lis_#t~short11#1;call lis_#t~mem10#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem9#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem10#1 < 1 + lis_#t~mem9#1; 2225#L521-2 assume lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1;call lis_#t~mem12#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);call write~int#1(1 + lis_#t~mem12#1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);havoc lis_#t~mem12#1;call write~int#2(lis_~j~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 2207#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 2221#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 2210#L519-2 [2023-11-26 12:03:41,326 INFO L750 eck$LassoCheckResult]: Loop: 2210#L519-2 lis_#t~post5#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post5#1;havoc lis_#t~post5#1; 2211#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 2237#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 2244#L521 assume !lis_#t~short11#1; 2246#L521-2 assume !lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1; 2245#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 2243#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 2210#L519-2 [2023-11-26 12:03:41,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:41,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1035299872, now seen corresponding path program 2 times [2023-11-26 12:03:41,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:41,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571991670] [2023-11-26 12:03:41,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:41,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:41,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:41,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:41,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:41,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:41,462 INFO L85 PathProgramCache]: Analyzing trace with hash 782608452, now seen corresponding path program 2 times [2023-11-26 12:03:41,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:41,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247674646] [2023-11-26 12:03:41,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:41,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:41,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:41,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:41,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:41,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1635570875, now seen corresponding path program 1 times [2023-11-26 12:03:41,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:41,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4685631] [2023-11-26 12:03:41,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:41,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:41,598 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-26 12:03:41,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:41,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4685631] [2023-11-26 12:03:41,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4685631] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:03:41,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257901019] [2023-11-26 12:03:41,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:41,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:03:41,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:41,601 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:03:41,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-26 12:03:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:41,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:03:41,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:41,800 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-26 12:03:41,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:03:41,854 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-26 12:03:41,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257901019] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:03:41,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:03:41,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-11-26 12:03:41,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754573446] [2023-11-26 12:03:41,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:03:41,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:41,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:03:41,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:03:41,974 INFO L87 Difference]: Start difference. First operand 55 states and 73 transitions. cyclomatic complexity: 23 Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 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) [2023-11-26 12:03:42,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:42,103 INFO L93 Difference]: Finished difference Result 73 states and 96 transitions. [2023-11-26 12:03:42,103 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 96 transitions. [2023-11-26 12:03:42,104 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2023-11-26 12:03:42,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 49 states and 62 transitions. [2023-11-26 12:03:42,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2023-11-26 12:03:42,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2023-11-26 12:03:42,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 62 transitions. [2023-11-26 12:03:42,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:42,105 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 62 transitions. [2023-11-26 12:03:42,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 62 transitions. [2023-11-26 12:03:42,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2023-11-26 12:03:42,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.25) internal successors, (55), 43 states have internal predecessors, (55), 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) [2023-11-26 12:03:42,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2023-11-26 12:03:42,107 INFO L240 hiAutomatonCegarLoop]: Abstraction has 44 states and 55 transitions. [2023-11-26 12:03:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:03:42,113 INFO L428 stractBuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2023-11-26 12:03:42,114 INFO L335 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2023-11-26 12:03:42,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 55 transitions. [2023-11-26 12:03:42,114 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2023-11-26 12:03:42,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:03:42,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:03:42,115 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:42,117 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-11-26 12:03:42,117 INFO L748 eck$LassoCheckResult]: Stem: 2560#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2547#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~malloc17#1.base, main_#t~malloc17#1.offset, main_#t~nondet19#1, main_#t~post18#1, main_~i~1#1, main_#t~ret20#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;havoc main_#t~nondet16#1;main_~array_size~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1; 2548#L530 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 2542#L530-2 call main_#t~malloc17#1.base, main_#t~malloc17#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1 % 4294967296);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc17#1.base, main_#t~malloc17#1.offset;main_~i~1#1 := 0; 2536#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 2537#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 2538#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 2539#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 2569#L535-3 assume !!(main_~i~1#1 < main_~array_size~0#1);havoc main_#t~nondet19#1;call write~int#0(main_#t~nondet19#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet19#1; 2567#L535-2 main_#t~post18#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post18#1;havoc main_#t~post18#1; 2566#L535-3 assume !(main_~i~1#1 < main_~array_size~0#1); 2558#L535-4 havoc main_~i~1#1;assume { :begin_inline_lis } true;lis_#in~a#1.base, lis_#in~a#1.offset, lis_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc lis_#res#1;havoc lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset, lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset, lis_#t~post4#1, lis_#t~mem7#1, lis_#t~mem8#1, lis_#t~mem10#1, lis_#t~mem9#1, lis_#t~short11#1, lis_#t~mem12#1, lis_#t~post6#1, lis_#t~post5#1, lis_#t~mem14#1, lis_#t~mem15#1, lis_#t~post13#1, lis_~a#1.base, lis_~a#1.offset, lis_~N#1, lis_~best~0#1.base, lis_~best~0#1.offset, lis_~prev~0#1.base, lis_~prev~0#1.offset, lis_~i~0#1, lis_~j~0#1, lis_~max~0#1;lis_~a#1.base, lis_~a#1.offset := lis_#in~a#1.base, lis_#in~a#1.offset;lis_~N#1 := lis_#in~N#1;havoc lis_~best~0#1.base, lis_~best~0#1.offset;havoc lis_~prev~0#1.base, lis_~prev~0#1.offset;havoc lis_~i~0#1;havoc lis_~j~0#1;lis_~max~0#1 := 0;call lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~best~0#1.base, lis_~best~0#1.offset := lis_#t~malloc2#1.base, lis_#t~malloc2#1.offset;call lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * lis_~N#1 % 4294967296);lis_~prev~0#1.base, lis_~prev~0#1.offset := lis_#t~malloc3#1.base, lis_#t~malloc3#1.offset;lis_~i~0#1 := 0; 2559#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 2549#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 2550#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 2563#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 2568#L517-3 assume !!(lis_~i~0#1 < lis_~N#1);call write~int#1(1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call write~int#2(lis_~i~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 2565#L517-2 lis_#t~post4#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post4#1;havoc lis_#t~post4#1; 2564#L517-3 assume !(lis_~i~0#1 < lis_~N#1); 2561#L517-4 lis_~i~0#1 := 1; 2551#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 2552#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 2579#L521 assume lis_#t~short11#1;call lis_#t~mem10#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem9#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem10#1 < 1 + lis_#t~mem9#1; 2577#L521-2 assume lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1;call lis_#t~mem12#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);call write~int#1(1 + lis_#t~mem12#1, lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);havoc lis_#t~mem12#1;call write~int#2(lis_~j~0#1, lis_~prev~0#1.base, lis_~prev~0#1.offset + 4 * lis_~i~0#1, 4); 2576#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 2571#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 2545#L519-2 [2023-11-26 12:03:42,119 INFO L750 eck$LassoCheckResult]: Loop: 2545#L519-2 lis_#t~post5#1 := lis_~i~0#1;lis_~i~0#1 := 1 + lis_#t~post5#1;havoc lis_#t~post5#1; 2546#L519-3 assume !!(lis_~i~0#1 < lis_~N#1);lis_~j~0#1 := 0; 2570#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 2575#L521 assume !lis_#t~short11#1; 2573#L521-2 assume !lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1; 2553#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 2540#L520-3 assume !!(lis_~j~0#1 < lis_~i~0#1);call lis_#t~mem7#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem8#1 := read~int#0(lis_~a#1.base, lis_~a#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem7#1 > lis_#t~mem8#1; 2541#L521 assume lis_#t~short11#1;call lis_#t~mem10#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~i~0#1, 4);call lis_#t~mem9#1 := read~int#1(lis_~best~0#1.base, lis_~best~0#1.offset + 4 * lis_~j~0#1, 4);lis_#t~short11#1 := lis_#t~mem10#1 < 1 + lis_#t~mem9#1; 2554#L521-2 assume !lis_#t~short11#1;havoc lis_#t~mem7#1;havoc lis_#t~mem8#1;havoc lis_#t~mem10#1;havoc lis_#t~mem9#1;havoc lis_#t~short11#1; 2544#L520-2 lis_#t~post6#1 := lis_~j~0#1;lis_~j~0#1 := 1 + lis_#t~post6#1;havoc lis_#t~post6#1; 2572#L520-3 assume !(lis_~j~0#1 < lis_~i~0#1); 2545#L519-2 [2023-11-26 12:03:42,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:42,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1035299872, now seen corresponding path program 3 times [2023-11-26 12:03:42,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:42,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473169596] [2023-11-26 12:03:42,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:42,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:42,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:42,264 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:42,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:42,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1752792449, now seen corresponding path program 1 times [2023-11-26 12:03:42,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:42,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803617299] [2023-11-26 12:03:42,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:42,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:42,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:42,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:42,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:42,281 INFO L85 PathProgramCache]: Analyzing trace with hash 116956416, now seen corresponding path program 2 times [2023-11-26 12:03:42,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:42,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498998577] [2023-11-26 12:03:42,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:42,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:43,651 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 12:03:43,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:43,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498998577] [2023-11-26 12:03:43,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498998577] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:03:43,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043047721] [2023-11-26 12:03:43,652 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:03:43,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:03:43,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:43,653 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:03:43,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77637213-70c3-4bfe-99df-e2fcc70067e7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-26 12:03:43,798 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:03:43,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:03:43,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-26 12:03:43,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:43,876 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 [2023-11-26 12:03:43,944 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 19 treesize of output 18 [2023-11-26 12:03:44,203 INFO L349 Elim1Store]: treesize reduction 24, result has 47.8 percent of original size [2023-11-26 12:03:44,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 47 [2023-11-26 12:03:44,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 12:03:44,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2023-11-26 12:03:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-26 12:03:44,844 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:03:45,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 97 treesize of output 89 [2023-11-26 12:03:45,581 INFO L349 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2023-11-26 12:03:45,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 343 treesize of output 274 [2023-11-26 12:03:45,850 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 22 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-26 12:03:45,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043047721] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:03:45,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:03:45,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 40 [2023-11-26 12:03:45,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742292460] [2023-11-26 12:03:45,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:03:46,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:46,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-26 12:03:46,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1390, Unknown=0, NotChecked=0, Total=1560 [2023-11-26 12:03:46,176 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. cyclomatic complexity: 15 Second operand has 40 states, 40 states have (on average 2.1) internal successors, (84), 40 states have internal predecessors, (84), 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) [2023-11-26 12:03:55,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-26 12:04:09,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]