./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/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_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/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 64bit --witnessprinter.graph.data.programhash 64e9a02fe4d55a12958b5de8c28c6c0ab007c7a3dc976261fd9d4ec11bf5feff --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:38,949 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:39,063 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-26 12:00:39,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:39,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:39,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:39,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:39,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:39,113 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:39,118 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:39,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:39,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:39,120 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:39,122 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 12:00:39,123 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 12:00:39,123 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 12:00:39,124 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 12:00:39,125 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 12:00:39,126 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 12:00:39,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:39,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 12:00:39,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:39,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:39,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 12:00:39,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 12:00:39,129 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 12:00:39,130 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:00:39,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:39,131 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 12:00:39,131 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:39,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:39,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:39,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:39,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:39,134 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 12:00:39,135 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_9017ef71-5709-491a-8f04-f3fc3576fac4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64e9a02fe4d55a12958b5de8c28c6c0ab007c7a3dc976261fd9d4ec11bf5feff [2023-11-26 12:00:39,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:39,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:39,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:39,492 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:39,493 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:39,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i [2023-11-26 12:00:42,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:42,931 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:42,931 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i [2023-11-26 12:00:42,954 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/data/ab6355eb3/033a9ab6e10f483b9abcd9bef098020a/FLAG66ab52d6d [2023-11-26 12:00:42,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/data/ab6355eb3/033a9ab6e10f483b9abcd9bef098020a [2023-11-26 12:00:42,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:42,980 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:42,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:42,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:42,991 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:42,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:42" (1/1) ... [2023-11-26 12:00:42,993 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac4e92d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:42, skipping insertion in model container [2023-11-26 12:00:42,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:42" (1/1) ... [2023-11-26 12:00:43,058 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:43,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:43,481 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:43,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:43,586 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:43,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43 WrapperNode [2023-11-26 12:00:43,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:43,588 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:43,588 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:43,589 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:43,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (1/1) ... [2023-11-26 12:00:43,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (1/1) ... [2023-11-26 12:00:43,653 INFO L138 Inliner]: procedures = 111, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2023-11-26 12:00:43,654 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:43,655 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:43,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:43,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:43,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (1/1) ... [2023-11-26 12:00:43,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (1/1) ... [2023-11-26 12:00:43,686 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (1/1) ... [2023-11-26 12:00:43,704 INFO L175 MemorySlicer]: Split 16 memory accesses to 2 slices as follows [8, 8]. 50 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0]. The 4 writes are split as follows [2, 2]. [2023-11-26 12:00:43,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (1/1) ... [2023-11-26 12:00:43,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (1/1) ... [2023-11-26 12:00:43,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (1/1) ... [2023-11-26 12:00:43,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (1/1) ... [2023-11-26 12:00:43,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (1/1) ... [2023-11-26 12:00:43,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (1/1) ... [2023-11-26 12:00:43,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:43,722 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:43,723 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:43,723 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:43,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (1/1) ... [2023-11-26 12:00:43,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:43,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:43,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:43,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:00:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:00:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:00:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:00:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:00:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:00:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:43,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:43,952 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:43,954 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:44,185 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:44,195 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:44,195 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-26 12:00:44,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:44 BoogieIcfgContainer [2023-11-26 12:00:44,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:44,199 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 12:00:44,199 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 12:00:44,204 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 12:00:44,205 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:00:44,206 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 12:00:42" (1/3) ... [2023-11-26 12:00:44,207 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@127e50b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:00:44, skipping insertion in model container [2023-11-26 12:00:44,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:00:44,208 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:43" (2/3) ... [2023-11-26 12:00:44,208 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@127e50b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:00:44, skipping insertion in model container [2023-11-26 12:00:44,208 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:00:44,209 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:44" (3/3) ... [2023-11-26 12:00:44,210 INFO L332 chiAutomizerObserver]: Analyzing ICFG b.18-alloca.i [2023-11-26 12:00:44,273 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 12:00:44,273 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 12:00:44,274 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 12:00:44,274 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 12:00:44,274 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 12:00:44,274 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 12:00:44,274 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 12:00:44,275 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 12:00:44,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 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 12:00:44,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-26 12:00:44,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:44,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:44,311 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:00:44,311 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-26 12:00:44,311 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 12:00:44,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 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 12:00:44,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-26 12:00:44,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:44,314 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:44,315 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:00:44,315 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-26 12:00:44,321 INFO L748 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int#0(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#1(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 11#L559-4true [2023-11-26 12:00:44,322 INFO L750 eck$LassoCheckResult]: Loop: 11#L559-4true call test_fun_#t~mem4#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 8#L553-1true assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 4#L553-3true assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 17#L554true assume !(test_fun_#t~mem7#1 > test_fun_#t~mem8#1);havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 5#L559-3true assume !true; 11#L559-4true [2023-11-26 12:00:44,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:44,327 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 12:00:44,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:44,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529526429] [2023-11-26 12:00:44,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:44,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:44,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:44,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:44,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:44,623 INFO L85 PathProgramCache]: Analyzing trace with hash 35410170, now seen corresponding path program 1 times [2023-11-26 12:00:44,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:44,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976184156] [2023-11-26 12:00:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:44,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:44,692 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 12:00:44,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:44,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976184156] [2023-11-26 12:00:44,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976184156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:44,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:44,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:00:44,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492374172] [2023-11-26 12:00:44,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:44,700 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:00:44,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:44,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:00:44,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:00:44,739 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 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) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 12:00:44,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:44,747 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2023-11-26 12:00:44,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2023-11-26 12:00:44,750 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-26 12:00:44,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 10 states and 14 transitions. [2023-11-26 12:00:44,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-26 12:00:44,756 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-26 12:00:44,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2023-11-26 12:00:44,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:44,757 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-11-26 12:00:44,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2023-11-26 12:00:44,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-26 12:00:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:44,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2023-11-26 12:00:44,786 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-11-26 12:00:44,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:00:44,791 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-11-26 12:00:44,792 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 12:00:44,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2023-11-26 12:00:44,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-26 12:00:44,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:44,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:44,794 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:00:44,794 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-26 12:00:44,794 INFO L748 eck$LassoCheckResult]: Stem: 48#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 49#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int#0(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#1(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 50#L559-4 [2023-11-26 12:00:44,795 INFO L750 eck$LassoCheckResult]: Loop: 50#L559-4 call test_fun_#t~mem4#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 51#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 44#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 45#L554 assume test_fun_#t~mem7#1 > test_fun_#t~mem8#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 42#L555-3 call test_fun_#t~mem9#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 43#L555-1 assume !(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1; 50#L559-4 [2023-11-26 12:00:44,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:44,795 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-26 12:00:44,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:44,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291507930] [2023-11-26 12:00:44,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:44,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:44,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:44,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:44,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:44,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1097700202, now seen corresponding path program 1 times [2023-11-26 12:00:44,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:44,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582095848] [2023-11-26 12:00:44,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:44,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:45,061 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 12:00:45,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:45,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582095848] [2023-11-26 12:00:45,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582095848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:45,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:45,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:45,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354287552] [2023-11-26 12:00:45,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:45,063 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:00:45,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:45,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:00:45,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:45,064 INFO L87 Difference]: Start difference. First operand 10 states and 14 transitions. cyclomatic complexity: 5 Second operand has 5 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 12:00:45,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:45,132 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2023-11-26 12:00:45,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2023-11-26 12:00:45,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2023-11-26 12:00:45,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2023-11-26 12:00:45,138 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2023-11-26 12:00:45,139 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2023-11-26 12:00:45,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2023-11-26 12:00:45,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:45,139 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-26 12:00:45,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2023-11-26 12:00:45,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2023-11-26 12:00:45,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 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 12:00:45,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2023-11-26 12:00:45,143 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-26 12:00:45,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:00:45,144 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-26 12:00:45,146 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 12:00:45,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2023-11-26 12:00:45,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-11-26 12:00:45,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:45,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:45,154 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:00:45,154 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-26 12:00:45,155 INFO L748 eck$LassoCheckResult]: Stem: 83#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 84#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int#0(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#1(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 85#L559-4 [2023-11-26 12:00:45,155 INFO L750 eck$LassoCheckResult]: Loop: 85#L559-4 call test_fun_#t~mem4#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 86#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 79#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 80#L554 assume !(test_fun_#t~mem7#1 > test_fun_#t~mem8#1);havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 81#L559-3 call test_fun_#t~mem11#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 82#L559-1 assume !(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1; 85#L559-4 [2023-11-26 12:00:45,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:45,157 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-11-26 12:00:45,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:45,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905086864] [2023-11-26 12:00:45,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:45,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:45,199 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:45,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:45,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:45,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1097715097, now seen corresponding path program 1 times [2023-11-26 12:00:45,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:45,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145174972] [2023-11-26 12:00:45,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:45,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:45,394 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 12:00:45,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:45,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145174972] [2023-11-26 12:00:45,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145174972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:45,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:45,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:45,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422567681] [2023-11-26 12:00:45,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:45,397 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:00:45,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:45,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:00:45,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:45,399 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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 12:00:45,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:45,453 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2023-11-26 12:00:45,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2023-11-26 12:00:45,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2023-11-26 12:00:45,459 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2023-11-26 12:00:45,459 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-26 12:00:45,459 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-11-26 12:00:45,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2023-11-26 12:00:45,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:45,460 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-11-26 12:00:45,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2023-11-26 12:00:45,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2023-11-26 12:00:45,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 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 12:00:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2023-11-26 12:00:45,463 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-11-26 12:00:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:00:45,466 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-11-26 12:00:45,466 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 12:00:45,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2023-11-26 12:00:45,468 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-26 12:00:45,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:45,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:45,469 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:00:45,469 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:45,469 INFO L748 eck$LassoCheckResult]: Stem: 122#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 123#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int#0(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#1(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 125#L559-4 [2023-11-26 12:00:45,469 INFO L750 eck$LassoCheckResult]: Loop: 125#L559-4 call test_fun_#t~mem4#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 126#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 118#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 119#L554 assume test_fun_#t~mem7#1 > test_fun_#t~mem8#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 116#L555-3 call test_fun_#t~mem9#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 117#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#0(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 127#L555-3 call test_fun_#t~mem9#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 129#L555-1 assume !(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1; 125#L559-4 [2023-11-26 12:00:45,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:45,470 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2023-11-26 12:00:45,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:45,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480096441] [2023-11-26 12:00:45,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:45,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:45,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:45,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:45,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:45,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1672057937, now seen corresponding path program 1 times [2023-11-26 12:00:45,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:45,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076217776] [2023-11-26 12:00:45,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:45,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:45,750 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 12:00:45,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:45,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076217776] [2023-11-26 12:00:45,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076217776] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:45,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582703814] [2023-11-26 12:00:45,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:45,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:45,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:45,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:00:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:45,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 12:00:45,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:45,968 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 15 treesize of output 7 [2023-11-26 12:00:46,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2023-11-26 12:00:46,032 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 15 treesize of output 7 [2023-11-26 12:00:46,040 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 12:00:46,040 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:46,130 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 21 treesize of output 13 [2023-11-26 12:00:46,141 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 12:00:46,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582703814] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:46,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:00:46,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2023-11-26 12:00:46,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293316730] [2023-11-26 12:00:46,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:46,145 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:00:46,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:46,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:46,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:46,146 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 5 Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 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 12:00:46,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:46,303 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2023-11-26 12:00:46,303 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2023-11-26 12:00:46,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2023-11-26 12:00:46,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 21 transitions. [2023-11-26 12:00:46,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-26 12:00:46,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-11-26 12:00:46,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2023-11-26 12:00:46,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:46,311 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2023-11-26 12:00:46,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2023-11-26 12:00:46,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2023-11-26 12:00:46,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2023-11-26 12:00:46,314 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2023-11-26 12:00:46,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:00:46,317 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2023-11-26 12:00:46,317 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-26 12:00:46,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2023-11-26 12:00:46,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-26 12:00:46,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:46,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:46,325 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:00:46,325 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:46,325 INFO L748 eck$LassoCheckResult]: Stem: 217#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 218#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int#0(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#1(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 220#L559-4 [2023-11-26 12:00:46,325 INFO L750 eck$LassoCheckResult]: Loop: 220#L559-4 call test_fun_#t~mem4#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 221#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 213#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 214#L554 assume !(test_fun_#t~mem7#1 > test_fun_#t~mem8#1);havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 223#L559-3 call test_fun_#t~mem11#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 219#L559-1 assume !!(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1;call test_fun_#t~mem12#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int#1(test_fun_#t~mem12#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem12#1; 215#L559-3 call test_fun_#t~mem11#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 216#L559-1 assume !(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1; 220#L559-4 [2023-11-26 12:00:46,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:46,326 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2023-11-26 12:00:46,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:46,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719729503] [2023-11-26 12:00:46,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:46,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:46,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:46,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:46,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:46,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1657743362, now seen corresponding path program 1 times [2023-11-26 12:00:46,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:46,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486180130] [2023-11-26 12:00:46,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:46,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:46,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:46,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:46,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:46,401 INFO L85 PathProgramCache]: Analyzing trace with hash -967181888, now seen corresponding path program 1 times [2023-11-26 12:00:46,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:46,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978862260] [2023-11-26 12:00:46,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:46,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:46,429 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:46,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:47,032 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:47,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:47,033 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:47,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:47,033 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:00:47,033 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,033 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:47,034 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:47,034 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration5_Lasso [2023-11-26 12:00:47,034 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:47,034 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:47,056 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 12:00:47,594 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 12:00:47,598 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 12:00:47,601 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 12:00:47,604 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 12:00:47,608 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 12:00:47,612 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 12:00:47,616 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 12:00:47,618 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 12:00:47,621 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 12:00:47,624 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 12:00:47,627 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 12:00:47,630 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 12:00:47,633 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 12:00:47,636 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 12:00:47,639 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 12:00:47,642 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 12:00:47,646 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 12:00:47,649 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 12:00:47,652 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 12:00:47,656 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 12:00:47,659 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 12:00:47,663 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 12:00:48,246 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:48,251 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:00:48,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:48,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:48,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:48,300 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 12:00:48,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 12:00:48,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:48,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:48,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:48,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:48,325 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:48,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:48,340 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:48,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-26 12:00:48,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:48,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:48,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:48,355 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 12:00:48,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 12:00:48,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:48,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:48,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:48,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:48,380 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:48,380 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:48,393 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:48,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:48,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:48,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:48,400 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:48,411 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 12:00:48,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:48,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:48,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:48,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:48,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 12:00:48,449 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:48,449 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:48,477 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:00:48,535 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-11-26 12:00:48,535 INFO L444 ModelExtractionUtils]: 8 out of 34 variables were initially zero. Simplification set additionally 24 variables to zero. [2023-11-26 12:00:48,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:48,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:48,541 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:48,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 12:00:48,554 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:00:48,579 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-26 12:00:48,579 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:00:48,580 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#1 ULTIMATE.start_test_fun_~y_ref~0#1.base) 0)_1) = 1*v_rep(select (select #memory_int#1 ULTIMATE.start_test_fun_~y_ref~0#1.base) 0)_1 Supporting invariants [] [2023-11-26 12:00:48,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:48,631 INFO L156 tatePredicateManager]: 11 out of 12 supporting invariants were superfluous and have been removed [2023-11-26 12:00:48,637 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~y_ref~0!base][0] could not be translated [2023-11-26 12:00:48,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:48,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:00:48,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:48,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 12:00:48,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:48,776 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 15 treesize of output 7 [2023-11-26 12:00:48,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:00:48,873 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-26 12:00:48,875 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 5 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 12:00:49,072 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 5. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 40 states and 53 transitions. Complement of second has 10 states. [2023-11-26 12:00:49,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:49,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 12:00:49,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2023-11-26 12:00:49,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-26 12:00:49,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:49,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 10 letters. Loop has 8 letters. [2023-11-26 12:00:49,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:49,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 2 letters. Loop has 16 letters. [2023-11-26 12:00:49,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:49,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 53 transitions. [2023-11-26 12:00:49,082 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-11-26 12:00:49,083 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 38 states and 51 transitions. [2023-11-26 12:00:49,083 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-11-26 12:00:49,084 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-11-26 12:00:49,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 51 transitions. [2023-11-26 12:00:49,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:49,084 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 51 transitions. [2023-11-26 12:00:49,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 51 transitions. [2023-11-26 12:00:49,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2023-11-26 12:00:49,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 states have internal predecessors, (39), 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 12:00:49,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2023-11-26 12:00:49,089 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-11-26 12:00:49,089 INFO L428 stractBuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-11-26 12:00:49,089 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-26 12:00:49,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2023-11-26 12:00:49,090 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2023-11-26 12:00:49,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:49,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:49,091 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-26 12:00:49,091 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 2, 1, 1, 1, 1, 1] [2023-11-26 12:00:49,092 INFO L748 eck$LassoCheckResult]: Stem: 395#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 396#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int#0(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#1(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 401#L559-4 call test_fun_#t~mem4#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 402#L553-1 [2023-11-26 12:00:49,092 INFO L750 eck$LassoCheckResult]: Loop: 402#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 387#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 388#L554 assume test_fun_#t~mem7#1 > test_fun_#t~mem8#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 383#L555-3 call test_fun_#t~mem9#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 384#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#0(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 404#L555-3 call test_fun_#t~mem9#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 412#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#0(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 411#L555-3 call test_fun_#t~mem9#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 410#L555-1 assume !(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1; 397#L559-4 call test_fun_#t~mem4#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 402#L553-1 [2023-11-26 12:00:49,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:49,093 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2023-11-26 12:00:49,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:49,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775128274] [2023-11-26 12:00:49,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:49,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:49,106 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:49,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:49,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:49,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1479493138, now seen corresponding path program 2 times [2023-11-26 12:00:49,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:49,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633276646] [2023-11-26 12:00:49,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:49,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:49,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:49,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:49,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:49,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:49,163 INFO L85 PathProgramCache]: Analyzing trace with hash 376307409, now seen corresponding path program 1 times [2023-11-26 12:00:49,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:49,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002486454] [2023-11-26 12:00:49,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:49,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:49,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:49,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:49,942 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:49,942 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:49,942 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:49,943 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:49,943 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:00:49,943 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:49,943 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:49,943 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:49,943 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration6_Lasso [2023-11-26 12:00:49,943 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:49,943 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:49,948 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 12:00:49,952 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 12:00:50,491 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 12:00:50,494 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 12:00:50,497 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 12:00:50,499 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 12:00:50,502 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 12:00:50,505 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 12:00:50,508 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 12:00:50,511 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 12:00:50,514 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 12:00:50,520 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 12:00:50,522 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 12:00:50,525 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 12:00:50,528 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 12:00:50,531 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 12:00:50,534 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 12:00:50,536 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 12:00:50,539 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 12:00:50,543 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 12:00:50,546 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 12:00:51,301 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:51,302 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:00:51,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:51,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:51,306 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:51,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 12:00:51,313 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 12:00:51,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:51,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:51,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:51,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:51,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:51,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:51,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:51,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:51,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:51,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:51,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:51,347 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:51,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 12:00:51,354 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 12:00:51,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:51,366 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2023-11-26 12:00:51,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:51,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:51,385 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-26 12:00:51,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:51,412 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:00:51,447 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-11-26 12:00:51,447 INFO L444 ModelExtractionUtils]: 27 out of 40 variables were initially zero. Simplification set additionally 11 variables to zero. [2023-11-26 12:00:51,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:51,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:51,450 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:51,463 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:00:51,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-26 12:00:51,485 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-26 12:00:51,485 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:00:51,485 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(ite ULTIMATE.start_test_fun_#t~short6#1 1 0)_2) = 1*v_rep(ite ULTIMATE.start_test_fun_#t~short6#1 1 0)_2 Supporting invariants [] [2023-11-26 12:00:51,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:51,524 INFO L156 tatePredicateManager]: 12 out of 12 supporting invariants were superfluous and have been removed [2023-11-26 12:00:51,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if #t~short6 then 1 else 0) could not be translated [2023-11-26 12:00:51,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:51,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:51,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:51,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:00:51,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:00:51,639 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-26 12:00:51,640 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:51,712 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 73 states and 98 transitions. Complement of second has 10 states. [2023-11-26 12:00:51,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:51,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:51,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2023-11-26 12:00:51,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 3 letters. Loop has 10 letters. [2023-11-26 12:00:51,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:51,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 13 letters. Loop has 10 letters. [2023-11-26 12:00:51,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:51,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 3 letters. Loop has 20 letters. [2023-11-26 12:00:51,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:51,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 98 transitions. [2023-11-26 12:00:51,725 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-26 12:00:51,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 65 states and 89 transitions. [2023-11-26 12:00:51,728 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-26 12:00:51,728 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-11-26 12:00:51,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 89 transitions. [2023-11-26 12:00:51,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:51,729 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 89 transitions. [2023-11-26 12:00:51,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 89 transitions. [2023-11-26 12:00:51,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2023-11-26 12:00:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 54 states have internal predecessors, (79), 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 12:00:51,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2023-11-26 12:00:51,741 INFO L240 hiAutomatonCegarLoop]: Abstraction has 55 states and 79 transitions. [2023-11-26 12:00:51,741 INFO L428 stractBuchiCegarLoop]: Abstraction has 55 states and 79 transitions. [2023-11-26 12:00:51,741 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-26 12:00:51,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 79 transitions. [2023-11-26 12:00:51,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-26 12:00:51,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:51,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:51,743 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-26 12:00:51,743 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 12:00:51,744 INFO L748 eck$LassoCheckResult]: Stem: 615#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 616#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int#0(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#1(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 622#L559-4 call test_fun_#t~mem4#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 626#L553-1 assume !test_fun_#t~short6#1; 607#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 608#L554 assume test_fun_#t~mem7#1 > test_fun_#t~mem8#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 603#L555-3 [2023-11-26 12:00:51,744 INFO L750 eck$LassoCheckResult]: Loop: 603#L555-3 call test_fun_#t~mem9#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 604#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#0(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 603#L555-3 [2023-11-26 12:00:51,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:51,744 INFO L85 PathProgramCache]: Analyzing trace with hash 889571371, now seen corresponding path program 1 times [2023-11-26 12:00:51,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:51,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790775085] [2023-11-26 12:00:51,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:51,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:51,778 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 12:00:51,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:51,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790775085] [2023-11-26 12:00:51,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790775085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:51,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:51,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:51,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882949733] [2023-11-26 12:00:51,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:51,780 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:00:51,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:51,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 1 times [2023-11-26 12:00:51,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:51,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369859678] [2023-11-26 12:00:51,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:51,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,794 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:51,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-26 12:00:51,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:51,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:51,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:51,853 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. cyclomatic complexity: 30 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 12:00:51,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:51,861 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2023-11-26 12:00:51,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 75 transitions. [2023-11-26 12:00:51,862 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-26 12:00:51,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 53 states and 67 transitions. [2023-11-26 12:00:51,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-26 12:00:51,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-26 12:00:51,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 67 transitions. [2023-11-26 12:00:51,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:51,864 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 67 transitions. [2023-11-26 12:00:51,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 67 transitions. [2023-11-26 12:00:51,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-26 12:00:51,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 52 states have internal predecessors, (67), 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 12:00:51,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2023-11-26 12:00:51,868 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 67 transitions. [2023-11-26 12:00:51,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:51,869 INFO L428 stractBuchiCegarLoop]: Abstraction has 53 states and 67 transitions. [2023-11-26 12:00:51,869 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-26 12:00:51,869 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 67 transitions. [2023-11-26 12:00:51,870 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-26 12:00:51,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:51,870 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:51,871 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-26 12:00:51,871 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 12:00:51,871 INFO L748 eck$LassoCheckResult]: Stem: 735#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 736#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int#0(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#1(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 741#L559-4 call test_fun_#t~mem4#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 770#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 727#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 728#L554 assume test_fun_#t~mem7#1 > test_fun_#t~mem8#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 723#L555-3 [2023-11-26 12:00:51,871 INFO L750 eck$LassoCheckResult]: Loop: 723#L555-3 call test_fun_#t~mem9#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 724#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#0(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 723#L555-3 [2023-11-26 12:00:51,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:51,872 INFO L85 PathProgramCache]: Analyzing trace with hash 889569449, now seen corresponding path program 1 times [2023-11-26 12:00:51,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:51,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175262949] [2023-11-26 12:00:51,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:51,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,891 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:51,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:51,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 2 times [2023-11-26 12:00:51,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:51,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612443780] [2023-11-26 12:00:51,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:51,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:51,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:51,906 INFO L85 PathProgramCache]: Analyzing trace with hash 177749422, now seen corresponding path program 1 times [2023-11-26 12:00:51,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:51,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850063340] [2023-11-26 12:00:51,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:51,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,943 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:52,431 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:52,431 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:52,431 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:52,431 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:52,431 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:00:52,431 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:52,431 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:52,431 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:52,431 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration8_Lasso [2023-11-26 12:00:52,431 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:52,431 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:52,434 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 12:00:52,437 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 12:00:52,439 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 12:00:52,442 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 12:00:52,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:52,446 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 12:00:52,448 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 12:00:52,454 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 12:00:52,460 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 12:00:52,463 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 12:00:52,465 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 12:00:52,468 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 12:00:52,470 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 12:00:52,680 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 12:00:52,682 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 12:00:52,685 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 12:00:52,687 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 12:00:52,690 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 12:00:52,692 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 12:00:52,694 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 12:00:52,701 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 12:00:52,703 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 12:00:52,706 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 12:00:52,708 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 12:00:53,000 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:53,000 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:00:53,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,010 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,021 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 12:00:53,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:53,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:53,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:53,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-26 12:00:53,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,060 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,063 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 12:00:53,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:53,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:53,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:53,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-26 12:00:53,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,091 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,100 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 12:00:53,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:53,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:53,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-26 12:00:53,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,136 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-26 12:00:53,142 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 12:00:53,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:53,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:53,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:53,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-26 12:00:53,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,159 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-26 12:00:53,162 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 12:00:53,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:53,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:53,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:53,174 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-26 12:00:53,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,180 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-26 12:00:53,183 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 12:00:53,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:53,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:53,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:53,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,205 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-26 12:00:53,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:53,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:53,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:53,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:53,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,241 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-26 12:00:53,243 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 12:00:53,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:53,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:53,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:53,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,264 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-26 12:00:53,289 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 12:00:53,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:53,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:53,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:53,308 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,320 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-26 12:00:53,322 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 12:00:53,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:53,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:53,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:53,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,348 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,361 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 12:00:53,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,374 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:53,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,376 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:53,376 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:53,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-26 12:00:53,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,395 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-26 12:00:53,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:53,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:53,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:53,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:53,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,434 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,438 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 12:00:53,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-26 12:00:53,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:53,455 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:53,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:53,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,486 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,489 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 12:00:53,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:53,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:53,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:53,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:53,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-26 12:00:53,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:53,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:53,530 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:00:53,541 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 12:00:53,541 INFO L444 ModelExtractionUtils]: 23 out of 28 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-11-26 12:00:53,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:53,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:53,543 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:53,546 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:00:53,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-26 12:00:53,571 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-26 12:00:53,571 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:00:53,572 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#0 ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_3) = 1*v_rep(select (select #memory_int#0 ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_3 Supporting invariants [] [2023-11-26 12:00:53,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,598 INFO L156 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2023-11-26 12:00:53,599 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#0[~x_ref~0!base][~x_ref~0!offset] could not be translated [2023-11-26 12:00:53,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:53,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:53,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:53,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:00:53,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:53,669 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 12:00:53,670 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 12:00:53,671 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 67 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:53,709 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 67 transitions. cyclomatic complexity: 20. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 149 states and 188 transitions. Complement of second has 6 states. [2023-11-26 12:00:53,710 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 12:00:53,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:53,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-11-26 12:00:53,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-26 12:00:53,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:53,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-26 12:00:53,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:53,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-26 12:00:53,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:53,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 188 transitions. [2023-11-26 12:00:53,721 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-26 12:00:53,723 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 56 states and 67 transitions. [2023-11-26 12:00:53,723 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-26 12:00:53,724 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-26 12:00:53,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 67 transitions. [2023-11-26 12:00:53,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:53,724 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 67 transitions. [2023-11-26 12:00:53,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 67 transitions. [2023-11-26 12:00:53,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 30. [2023-11-26 12:00:53,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 29 states have internal predecessors, (37), 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 12:00:53,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2023-11-26 12:00:53,734 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 37 transitions. [2023-11-26 12:00:53,734 INFO L428 stractBuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2023-11-26 12:00:53,734 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-26 12:00:53,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 37 transitions. [2023-11-26 12:00:53,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 12:00:53,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:53,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:53,735 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:53,735 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 12:00:53,736 INFO L748 eck$LassoCheckResult]: Stem: 1003#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1004#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int#0(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#1(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1008#L559-4 call test_fun_#t~mem4#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 1010#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 997#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 998#L554 assume !(test_fun_#t~mem7#1 > test_fun_#t~mem8#1);havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 1018#L559-3 call test_fun_#t~mem11#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1017#L559-1 assume !!(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1;call test_fun_#t~mem12#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int#1(test_fun_#t~mem12#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem12#1; 1015#L559-3 call test_fun_#t~mem11#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1000#L559-1 [2023-11-26 12:00:53,736 INFO L750 eck$LassoCheckResult]: Loop: 1000#L559-1 assume !!(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1;call test_fun_#t~mem12#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int#1(test_fun_#t~mem12#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem12#1; 999#L559-3 call test_fun_#t~mem11#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1000#L559-1 [2023-11-26 12:00:53,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:53,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1215726572, now seen corresponding path program 1 times [2023-11-26 12:00:53,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:53,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193818136] [2023-11-26 12:00:53,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:53,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:53,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:53,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:53,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:53,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2428, now seen corresponding path program 1 times [2023-11-26 12:00:53,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:53,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323326780] [2023-11-26 12:00:53,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:53,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:53,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:53,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:53,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:53,779 INFO L85 PathProgramCache]: Analyzing trace with hash 82132647, now seen corresponding path program 2 times [2023-11-26 12:00:53,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:53,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059327535] [2023-11-26 12:00:53,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:53,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:53,799 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:53,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:54,483 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:54,484 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:54,484 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:54,484 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:54,484 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:00:54,484 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:54,484 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:54,484 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:54,484 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration9_Lasso [2023-11-26 12:00:54,484 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:54,484 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:54,487 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 12:00:54,489 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 12:00:54,492 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 12:00:54,494 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 12:00:54,496 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 12:00:54,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:54,874 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 12:00:54,877 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 12:00:54,879 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 12:00:54,882 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 12:00:54,884 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 12:00:54,888 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 12:00:54,890 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 12:00:54,892 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 12:00:54,895 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 12:00:54,897 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 12:00:54,900 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 12:00:54,903 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 12:00:54,905 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 12:00:54,909 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 12:00:54,912 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 12:00:54,915 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 12:00:54,918 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 12:00:55,307 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:55,307 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:00:55,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:55,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,318 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-26 12:00:55,321 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 12:00:55,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:55,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:55,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:55,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:55,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:55,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:55,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:55,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:55,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:55,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:55,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,344 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-26 12:00:55,347 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 12:00:55,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:55,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:55,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:55,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:55,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:55,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:55,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:55,360 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:55,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:55,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:55,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,365 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-26 12:00:55,368 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 12:00:55,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:55,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:55,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:55,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:55,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:55,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:55,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:55,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:55,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:55,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:55,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,388 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-26 12:00:55,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:55,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:55,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:55,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:55,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:55,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:55,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:55,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:55,403 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:55,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:55,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:55,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,408 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-26 12:00:55,414 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 12:00:55,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:55,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:55,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:55,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:55,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:55,436 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:55,445 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:55,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-26 12:00:55,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:55,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,449 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-26 12:00:55,452 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 12:00:55,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:55,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:55,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:55,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:55,467 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:55,467 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:55,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:55,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-26 12:00:55,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:55,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,478 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-26 12:00:55,481 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 12:00:55,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:55,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:55,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:55,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:55,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:55,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:55,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:55,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-26 12:00:55,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:55,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,507 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-26 12:00:55,511 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 12:00:55,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:55,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:55,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:55,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:55,525 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:55,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:55,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:55,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:55,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:55,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,555 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,562 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 12:00:55,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-26 12:00:55,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:55,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:55,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:55,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:55,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:55,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:55,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:55,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:55,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:55,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,615 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,622 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 12:00:55,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-26 12:00:55,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:55,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:55,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:55,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:55,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:55,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:55,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:55,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:55,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:55,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,648 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-26 12:00:55,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:55,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:55,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:55,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:55,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:55,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:55,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:55,694 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:00:55,719 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-11-26 12:00:55,719 INFO L444 ModelExtractionUtils]: 24 out of 34 variables were initially zero. Simplification set additionally 6 variables to zero. [2023-11-26 12:00:55,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:55,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,727 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-26 12:00:55,730 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:00:55,744 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-26 12:00:55,744 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:00:55,744 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_#t~mem11#1) = 1*ULTIMATE.start_test_fun_#t~mem11#1 Supporting invariants [1*ULTIMATE.start_test_fun_#t~mem11#1 - 1*v_rep(select (select #memory_int#1 ULTIMATE.start_test_fun_~y_ref~0#1.base) 0)_4 >= 0] [2023-11-26 12:00:55,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:55,791 INFO L156 tatePredicateManager]: 9 out of 11 supporting invariants were superfluous and have been removed [2023-11-26 12:00:55,796 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-26 12:00:55,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:55,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 12:00:55,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:55,925 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 15 treesize of output 1 [2023-11-26 12:00:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:55,940 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 12:00:55,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:55,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2023-11-26 12:00:55,980 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 12:00:55,981 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-26 12:00:55,981 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:56,033 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 76 transitions. Complement of second has 6 states. [2023-11-26 12:00:56,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:56,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:56,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-26 12:00:56,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-26 12:00:56,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:56,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2023-11-26 12:00:56,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:56,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-26 12:00:56,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:56,038 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 76 transitions. [2023-11-26 12:00:56,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 12:00:56,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 54 states and 66 transitions. [2023-11-26 12:00:56,040 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-26 12:00:56,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-26 12:00:56,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 66 transitions. [2023-11-26 12:00:56,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:56,040 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 66 transitions. [2023-11-26 12:00:56,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 66 transitions. [2023-11-26 12:00:56,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2023-11-26 12:00:56,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 46 states have internal predecessors, (57), 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 12:00:56,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2023-11-26 12:00:56,045 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 57 transitions. [2023-11-26 12:00:56,045 INFO L428 stractBuchiCegarLoop]: Abstraction has 47 states and 57 transitions. [2023-11-26 12:00:56,045 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-26 12:00:56,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 57 transitions. [2023-11-26 12:00:56,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 12:00:56,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:56,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:56,047 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-26 12:00:56,047 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 12:00:56,048 INFO L748 eck$LassoCheckResult]: Stem: 1200#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1201#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int#0(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int#1(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1204#L559-4 call test_fun_#t~mem4#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 1205#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 1236#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1208#L554 assume !(test_fun_#t~mem7#1 > test_fun_#t~mem8#1);havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 1198#L559-3 call test_fun_#t~mem11#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1199#L559-1 assume !!(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1;call test_fun_#t~mem12#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int#1(test_fun_#t~mem12#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem12#1; 1202#L559-3 call test_fun_#t~mem11#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1210#L559-1 assume !(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1; 1216#L559-4 call test_fun_#t~mem4#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 1215#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 1214#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int#0(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1213#L554 assume !(test_fun_#t~mem7#1 > test_fun_#t~mem8#1);havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 1212#L559-3 call test_fun_#t~mem11#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1211#L559-1 assume !!(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1;call test_fun_#t~mem12#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int#1(test_fun_#t~mem12#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem12#1; 1209#L559-3 call test_fun_#t~mem11#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1197#L559-1 [2023-11-26 12:00:56,048 INFO L750 eck$LassoCheckResult]: Loop: 1197#L559-1 assume !!(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1;call test_fun_#t~mem12#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int#1(test_fun_#t~mem12#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem12#1; 1196#L559-3 call test_fun_#t~mem11#1 := read~int#1(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1197#L559-1 [2023-11-26 12:00:56,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:56,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2055714993, now seen corresponding path program 2 times [2023-11-26 12:00:56,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:56,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697202156] [2023-11-26 12:00:56,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:56,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:56,159 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:56,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:56,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697202156] [2023-11-26 12:00:56,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697202156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:56,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:56,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:00:56,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478527788] [2023-11-26 12:00:56,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:56,161 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:00:56,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:56,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2428, now seen corresponding path program 2 times [2023-11-26 12:00:56,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:56,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020241649] [2023-11-26 12:00:56,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:56,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:56,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:56,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:56,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:56,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:00:56,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:56,218 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. cyclomatic complexity: 14 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 12:00:56,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:56,252 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2023-11-26 12:00:56,253 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 37 transitions. [2023-11-26 12:00:56,253 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 12:00:56,253 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2023-11-26 12:00:56,253 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 12:00:56,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 12:00:56,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 12:00:56,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:56,254 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:00:56,254 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:00:56,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:00:56,255 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:00:56,255 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-26 12:00:56,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:00:56,255 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 12:00:56,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-26 12:00:56,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 12:00:56 BoogieIcfgContainer [2023-11-26 12:00:56,264 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 12:00:56,265 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:00:56,265 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:00:56,265 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:00:56,266 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:44" (3/4) ... [2023-11-26 12:00:56,268 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:00:56,269 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:00:56,270 INFO L158 Benchmark]: Toolchain (without parser) took 13289.98ms. Allocated memory was 132.1MB in the beginning and 207.6MB in the end (delta: 75.5MB). Free memory was 88.7MB in the beginning and 58.9MB in the end (delta: 29.7MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. [2023-11-26 12:00:56,271 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 114.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:56,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.55ms. Allocated memory is still 132.1MB. Free memory was 88.7MB in the beginning and 72.5MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 12:00:56,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.90ms. Allocated memory is still 132.1MB. Free memory was 72.5MB in the beginning and 70.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:56,272 INFO L158 Benchmark]: Boogie Preprocessor took 67.03ms. Allocated memory is still 132.1MB. Free memory was 70.3MB in the beginning and 68.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:56,273 INFO L158 Benchmark]: RCFGBuilder took 475.59ms. Allocated memory is still 132.1MB. Free memory was 68.2MB in the beginning and 55.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:00:56,273 INFO L158 Benchmark]: BuchiAutomizer took 12065.09ms. Allocated memory was 132.1MB in the beginning and 207.6MB in the end (delta: 75.5MB). Free memory was 55.1MB in the beginning and 59.9MB in the end (delta: -4.8MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:56,273 INFO L158 Benchmark]: Witness Printer took 4.81ms. Allocated memory is still 207.6MB. Free memory was 59.9MB in the beginning and 58.9MB in the end (delta: 998.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:56,276 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 114.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.55ms. Allocated memory is still 132.1MB. Free memory was 88.7MB in the beginning and 72.5MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.90ms. Allocated memory is still 132.1MB. Free memory was 72.5MB in the beginning and 70.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.03ms. Allocated memory is still 132.1MB. Free memory was 70.3MB in the beginning and 68.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 475.59ms. Allocated memory is still 132.1MB. Free memory was 68.2MB in the beginning and 55.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 12065.09ms. Allocated memory was 132.1MB in the beginning and 207.6MB in the end (delta: 75.5MB). Free memory was 55.1MB in the beginning and 59.9MB in the end (delta: -4.8MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. * Witness Printer took 4.81ms. Allocated memory is still 207.6MB. Free memory was 59.9MB in the beginning and 58.9MB in the end (delta: 998.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~y_ref~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if #t~short6 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#0[~x_ref~0!base][~x_ref~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (6 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function null and consists of 6 locations. One deterministic module has affine ranking function null and consists of 6 locations. One deterministic module has affine ranking function null and consists of 4 locations. One deterministic module has affine ranking function null and consists of 4 locations. 6 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.0s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 10.3s. Construction of modules took 0.2s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 5. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 58 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 8/8 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 264 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 134 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 130 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital181 mio100 ax109 hnf100 lsp88 ukn76 mio100 lsp38 div100 bol102 ite100 ukn100 eq190 hnf88 smp96 dnf138 smp89 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 138ms VariablesStem: 12 VariablesLoop: 9 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-26 12:00:56,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:56,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:56,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9017ef71-5709-491a-8f04-f3fc3576fac4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE