./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f49dce48b63f0ee8eed4ac47c25c384a83e3c23200b58c130c184e2b953e32f3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:31:19,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:31:19,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:31:19,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:31:19,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:31:19,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:31:19,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:31:19,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:31:19,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:31:19,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:31:19,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:31:19,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:31:19,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:31:19,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:31:19,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:31:19,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:31:19,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:31:19,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:31:19,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:31:19,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:31:19,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:31:19,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:31:19,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:31:19,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:31:19,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:31:19,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:31:19,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:31:19,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:31:19,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:31:19,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:31:19,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:31:19,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:31:19,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:31:19,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:31:19,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:31:19,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:31:19,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:31:19,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:31:19,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:31:19,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:31:19,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:31:19,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 20:31:19,252 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:31:19,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:31:19,253 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:31:19,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:31:19,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:31:19,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:31:19,256 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:31:19,256 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:31:19,256 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:31:19,256 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:31:19,258 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:31:19,258 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:31:19,258 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:31:19,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:31:19,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:31:19,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:31:19,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:31:19,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:31:19,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:31:19,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:31:19,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:31:19,261 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:31:19,261 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:31:19,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:31:19,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:31:19,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:31:19,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:31:19,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:31:19,266 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:31:19,266 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f49dce48b63f0ee8eed4ac47c25c384a83e3c23200b58c130c184e2b953e32f3 [2022-11-18 20:31:19,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:31:19,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:31:19,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:31:19,685 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:31:19,686 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:31:19,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i [2022-11-18 20:31:19,788 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/data/2ae3b6837/3d2a69127ee84c3f894c35d7c005e04d/FLAGa1c0b0b05 [2022-11-18 20:31:20,492 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:31:20,493 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i [2022-11-18 20:31:20,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/data/2ae3b6837/3d2a69127ee84c3f894c35d7c005e04d/FLAGa1c0b0b05 [2022-11-18 20:31:20,520 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/data/2ae3b6837/3d2a69127ee84c3f894c35d7c005e04d [2022-11-18 20:31:20,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:31:20,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:31:20,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:31:20,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:31:20,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:31:20,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:31:20" (1/1) ... [2022-11-18 20:31:20,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7bf4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:20, skipping insertion in model container [2022-11-18 20:31:20,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:31:20" (1/1) ... [2022-11-18 20:31:20,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:31:20,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:31:21,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:31:21,067 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:31:21,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:31:21,175 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:31:21,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21 WrapperNode [2022-11-18 20:31:21,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:31:21,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:31:21,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:31:21,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:31:21,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21" (1/1) ... [2022-11-18 20:31:21,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21" (1/1) ... [2022-11-18 20:31:21,236 INFO L138 Inliner]: procedures = 111, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-18 20:31:21,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:31:21,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:31:21,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:31:21,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:31:21,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21" (1/1) ... [2022-11-18 20:31:21,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21" (1/1) ... [2022-11-18 20:31:21,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21" (1/1) ... [2022-11-18 20:31:21,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21" (1/1) ... [2022-11-18 20:31:21,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21" (1/1) ... [2022-11-18 20:31:21,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21" (1/1) ... [2022-11-18 20:31:21,281 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21" (1/1) ... [2022-11-18 20:31:21,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21" (1/1) ... [2022-11-18 20:31:21,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:31:21,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:31:21,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:31:21,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:31:21,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21" (1/1) ... [2022-11-18 20:31:21,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:21,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:21,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:21,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:31:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:31:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:31:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:31:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:31:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:31:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:31:21,588 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:31:21,590 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:31:21,826 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:31:21,833 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:31:21,833 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:31:21,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:31:21 BoogieIcfgContainer [2022-11-18 20:31:21,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:31:21,837 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:31:21,837 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:31:21,842 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:31:21,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:31:21,843 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:31:20" (1/3) ... [2022-11-18 20:31:21,845 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3adae357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:31:21, skipping insertion in model container [2022-11-18 20:31:21,845 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:31:21,845 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:21" (2/3) ... [2022-11-18 20:31:21,846 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3adae357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:31:21, skipping insertion in model container [2022-11-18 20:31:21,846 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:31:21,846 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:31:21" (3/3) ... [2022-11-18 20:31:21,848 INFO L332 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv-alloca.i [2022-11-18 20:31:21,919 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:31:21,920 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:31:21,920 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:31:21,920 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:31:21,921 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:31:21,921 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:31:21,921 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:31:21,921 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:31:21,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:21,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-18 20:31:21,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:31:21,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:31:21,978 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:31:21,979 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:31:21,979 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:31:21,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:21,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-18 20:31:21,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:31:21,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:31:21,981 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:31:21,982 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:31:21,993 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;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~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#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~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem10#1, test_fun_#t~mem6#1, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~short9#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem12#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_~c~0#1.base, test_fun_~c~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 test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 5#L555-3true [2022-11-18 20:31:21,994 INFO L750 eck$LassoCheckResult]: Loop: 5#L555-3true call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 12#L555-1true assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 8#L557-5true assume !true; 9#L557-6true call test_fun_#t~mem11#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem11#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem11#1; 5#L555-3true [2022-11-18 20:31:22,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:22,002 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-18 20:31:22,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:22,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751038098] [2022-11-18 20:31:22,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:22,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:22,224 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:22,311 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:22,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:22,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1144552, now seen corresponding path program 1 times [2022-11-18 20:31:22,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:22,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725229802] [2022-11-18 20:31:22,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:22,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:22,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:22,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725229802] [2022-11-18 20:31:22,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725229802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:22,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:22,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:22,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225737772] [2022-11-18 20:31:22,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:22,402 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 20:31:22,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:22,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:31:22,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:31:22,445 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:22,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:22,466 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-11-18 20:31:22,467 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2022-11-18 20:31:22,468 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-18 20:31:22,472 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 8 states and 10 transitions. [2022-11-18 20:31:22,473 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-18 20:31:22,473 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-18 20:31:22,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2022-11-18 20:31:22,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:22,475 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-11-18 20:31:22,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2022-11-18 20:31:22,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-18 20:31:22,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 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) [2022-11-18 20:31:22,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2022-11-18 20:31:22,515 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-11-18 20:31:22,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:31:22,520 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-11-18 20:31:22,520 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:31:22,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2022-11-18 20:31:22,521 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-18 20:31:22,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:31:22,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:31:22,522 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:31:22,522 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:31:22,522 INFO L748 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 35#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem10#1, test_fun_#t~mem6#1, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~short9#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem12#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, test_fun_~c~0#1.base, test_fun_~c~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 36#L555-3 [2022-11-18 20:31:22,522 INFO L750 eck$LassoCheckResult]: Loop: 36#L555-3 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 37#L555-1 assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 38#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 39#L557-1 assume test_fun_#t~short9#1;call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem8#1 < 1073741824; 41#L557-3 assume !test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1; 40#L557-6 call test_fun_#t~mem11#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem11#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem11#1; 36#L555-3 [2022-11-18 20:31:22,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:22,523 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-18 20:31:22,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:22,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691940914] [2022-11-18 20:31:22,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:22,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:22,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:22,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:22,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:22,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1099516495, now seen corresponding path program 1 times [2022-11-18 20:31:22,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:22,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499924542] [2022-11-18 20:31:22,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:22,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:22,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:22,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:22,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499924542] [2022-11-18 20:31:22,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499924542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:22,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:22,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:31:22,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068749292] [2022-11-18 20:31:22,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:22,921 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 20:31:22,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:22,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:31:22,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:31:22,924 INFO L87 Difference]: Start difference. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 5 states, 5 states have (on average 1.2) 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) [2022-11-18 20:31:23,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:23,025 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2022-11-18 20:31:23,026 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2022-11-18 20:31:23,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-11-18 20:31:23,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2022-11-18 20:31:23,030 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-18 20:31:23,031 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-18 20:31:23,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2022-11-18 20:31:23,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:23,031 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2022-11-18 20:31:23,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2022-11-18 20:31:23,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 11. [2022-11-18 20:31:23,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 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) [2022-11-18 20:31:23,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-11-18 20:31:23,036 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-11-18 20:31:23,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:31:23,037 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-11-18 20:31:23,037 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:31:23,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2022-11-18 20:31:23,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-18 20:31:23,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:31:23,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:31:23,041 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:31:23,042 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:31:23,042 INFO L748 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 68#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#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~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem10#1, test_fun_#t~mem6#1, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~short9#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem12#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_~c~0#1.base, test_fun_~c~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 test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 69#L555-3 [2022-11-18 20:31:23,042 INFO L750 eck$LassoCheckResult]: Loop: 69#L555-3 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 70#L555-1 assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 71#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 72#L557-1 assume !test_fun_#t~short9#1; 77#L557-3 assume !test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1; 73#L557-6 call test_fun_#t~mem11#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem11#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem11#1; 69#L555-3 [2022-11-18 20:31:23,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:23,044 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-11-18 20:31:23,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:23,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724558068] [2022-11-18 20:31:23,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:23,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:23,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:23,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:23,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:23,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1099518417, now seen corresponding path program 1 times [2022-11-18 20:31:23,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:23,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904852966] [2022-11-18 20:31:23,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:23,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:23,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:23,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:23,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:23,139 INFO L85 PathProgramCache]: Analyzing trace with hash 179567635, now seen corresponding path program 1 times [2022-11-18 20:31:23,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:23,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946426546] [2022-11-18 20:31:23,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:23,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:23,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:23,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:24,390 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:31:24,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:31:24,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:31:24,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:31:24,391 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:31:24,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:24,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:31:24,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:31:24,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv-alloca.i_Iteration3_Lasso [2022-11-18 20:31:24,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:31:24,393 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:31:24,425 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:24,439 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:24,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:24,447 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:24,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,166 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,172 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,176 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,179 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,184 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,188 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,195 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,199 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,202 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,206 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,209 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,213 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,215 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:25,745 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:31:25,752 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:31:25,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:25,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:25,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:25,766 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 [2022-11-18 20:31:25,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:25,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:25,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 20:31:25,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:25,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:25,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:25,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:25,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:25,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:25,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:25,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:25,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:25,801 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:25,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:31:25,805 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 [2022-11-18 20:31:25,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:25,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:25,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:25,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:25,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:25,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:25,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:25,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:25,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:25,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:25,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:25,846 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:25,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:31:25,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:31:25,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:25,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:25,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:25,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:25,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:25,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:25,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:25,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:25,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:25,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:25,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:25,892 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:25,904 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 [2022-11-18 20:31:25,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:31:25,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:25,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:25,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:25,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:25,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:25,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:25,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:25,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:25,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:25,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:25,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:25,942 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:25,953 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 [2022-11-18 20:31:25,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 20:31:25,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:25,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:25,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:25,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:25,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:25,987 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:26,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:26,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:26,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:26,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:26,027 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:26,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 20:31:26,034 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 [2022-11-18 20:31:26,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:26,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:26,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:26,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:26,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:26,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:26,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:26,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-11-18 20:31:26,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:26,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:26,077 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:26,101 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 [2022-11-18 20:31:26,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 20:31:26,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:26,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:26,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:26,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:26,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:26,121 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:26,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:26,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:26,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:26,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:26,151 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:26,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 20:31:26,156 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 [2022-11-18 20:31:26,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:26,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:26,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:26,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:26,177 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:26,177 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:26,203 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:26,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:26,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:26,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:26,209 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:26,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 20:31:26,216 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 [2022-11-18 20:31:26,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:26,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:26,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:26,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:26,237 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:26,237 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:26,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:26,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:26,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:26,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:26,262 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:26,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 20:31:26,274 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 [2022-11-18 20:31:26,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:26,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:26,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:26,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:26,296 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:26,296 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:26,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:26,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:26,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:26,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:26,323 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:26,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 20:31:26,333 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 [2022-11-18 20:31:26,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:26,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:26,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:26,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:26,358 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:26,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:26,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:26,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:26,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:26,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:26,391 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:26,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:31:26,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 20:31:26,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:26,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:26,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:26,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:26,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:26,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:26,436 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:26,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:26,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:26,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:26,446 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:26,457 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 [2022-11-18 20:31:26,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 20:31:26,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:26,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:26,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:26,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:26,477 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:26,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:26,490 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:31:26,514 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-11-18 20:31:26,514 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2022-11-18 20:31:26,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:26,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:26,519 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:26,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 20:31:26,540 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:31:26,564 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:31:26,564 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:31:26,565 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_1) = 2*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_1 + 1 Supporting invariants [] [2022-11-18 20:31:26,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:26,669 INFO L156 tatePredicateManager]: 19 out of 20 supporting invariants were superfluous and have been removed [2022-11-18 20:31:26,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:26,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 20:31:26,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:26,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:31:26,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:26,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-18 20:31:26,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:26,976 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-18 20:31:26,977 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:27,089 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 27 transitions. Complement of second has 6 states. [2022-11-18 20:31:27,090 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 [2022-11-18 20:31:27,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:27,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2022-11-18 20:31:27,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-18 20:31:27,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:31:27,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2022-11-18 20:31:27,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:31:27,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 12 letters. [2022-11-18 20:31:27,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:31:27,098 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2022-11-18 20:31:27,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:31:27,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 26 transitions. [2022-11-18 20:31:27,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-18 20:31:27,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-18 20:31:27,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2022-11-18 20:31:27,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:31:27,101 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 26 transitions. [2022-11-18 20:31:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2022-11-18 20:31:27,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2022-11-18 20:31:27,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:27,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2022-11-18 20:31:27,104 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2022-11-18 20:31:27,104 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2022-11-18 20:31:27,104 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 20:31:27,104 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2022-11-18 20:31:27,105 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:31:27,105 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:31:27,105 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:31:27,105 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 20:31:27,106 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:31:27,106 INFO L748 eck$LassoCheckResult]: Stem: 230#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 231#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#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~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem10#1, test_fun_#t~mem6#1, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~short9#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem12#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_~c~0#1.base, test_fun_~c~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 test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 236#L555-3 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 238#L555-1 assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 232#L557-5 [2022-11-18 20:31:27,106 INFO L750 eck$LassoCheckResult]: Loop: 232#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 233#L557-1 assume test_fun_#t~short9#1;call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem8#1 < 1073741824; 241#L557-3 assume !!test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(2 * test_fun_#t~mem10#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 232#L557-5 [2022-11-18 20:31:27,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:27,107 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-11-18 20:31:27,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:27,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091432583] [2022-11-18 20:31:27,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:27,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:27,159 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:27,175 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:27,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:27,176 INFO L85 PathProgramCache]: Analyzing trace with hash 46776, now seen corresponding path program 1 times [2022-11-18 20:31:27,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:27,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025910462] [2022-11-18 20:31:27,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:27,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:27,185 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:27,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:27,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:27,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907761, now seen corresponding path program 1 times [2022-11-18 20:31:27,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:27,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473164320] [2022-11-18 20:31:27,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:27,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:27,220 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:27,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:27,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:28,409 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:31:28,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:31:28,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:31:28,409 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:31:28,410 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:31:28,410 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:28,410 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:31:28,410 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:31:28,410 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv-alloca.i_Iteration4_Lasso [2022-11-18 20:31:28,410 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:31:28,410 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:31:28,414 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:28,419 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:28,422 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:28,426 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:28,429 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:28,432 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,102 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,105 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,108 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,111 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,114 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,118 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,121 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,124 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,129 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,132 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,137 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,140 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,143 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:29,640 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:31:29,640 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:31:29,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:29,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:29,648 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:29,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 20:31:29,653 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 [2022-11-18 20:31:29,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:29,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:29,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:29,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:29,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:29,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:29,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:29,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:29,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:29,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:29,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:29,686 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:29,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 20:31:29,689 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 [2022-11-18 20:31:29,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:29,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:29,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:29,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:29,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:29,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:29,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:29,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:29,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:29,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:29,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:29,717 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:29,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 20:31:29,720 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 [2022-11-18 20:31:29,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:29,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:29,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:29,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:29,737 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:29,737 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:29,759 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:29,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:29,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:29,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:29,769 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:29,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 20:31:29,799 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:31:29,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:29,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:29,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:29,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:29,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:29,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:29,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:29,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:29,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:29,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:29,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:29,830 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:29,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 20:31:29,837 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 [2022-11-18 20:31:29,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:29,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:29,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:29,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:29,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:29,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:29,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:29,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:29,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:29,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:29,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:29,855 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:29,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 20:31:29,865 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 [2022-11-18 20:31:29,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:29,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:29,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:29,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:29,881 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:29,881 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:29,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:29,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:29,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:29,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:29,911 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:29,916 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 [2022-11-18 20:31:29,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-18 20:31:29,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:29,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:29,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:29,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:29,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:29,937 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:29,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:29,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:29,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:29,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:29,973 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:29,980 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 [2022-11-18 20:31:29,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 20:31:29,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:29,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:29,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:29,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:29,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:29,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:30,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:30,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:30,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:30,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:30,034 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:30,040 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 [2022-11-18 20:31:30,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 20:31:30,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:30,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:30,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:30,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:30,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:30,057 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:30,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:30,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:30,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:30,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:30,085 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:30,092 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 [2022-11-18 20:31:30,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 20:31:30,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:30,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:30,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:30,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:30,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:30,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:30,139 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:31:30,181 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-11-18 20:31:30,181 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 20:31:30,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:30,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:30,183 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:30,187 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:31:30,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 20:31:30,228 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-18 20:31:30,228 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:31:30,229 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0#1.base) ULTIMATE.start_test_fun_~y_ref~0#1.offset)_2) = -2*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0#1.base) ULTIMATE.start_test_fun_~y_ref~0#1.offset)_2 + 2147483647 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0#1.base) ULTIMATE.start_test_fun_~y_ref~0#1.offset)_2 - 1 >= 0] [2022-11-18 20:31:30,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:30,368 INFO L156 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2022-11-18 20:31:30,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:30,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:31:30,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:30,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:31:30,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:30,556 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 [2022-11-18 20:31:30,556 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:30,606 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 50 transitions. Complement of second has 7 states. [2022-11-18 20:31:30,607 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 [2022-11-18 20:31:30,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:30,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-11-18 20:31:30,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-18 20:31:30,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:31:30,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-18 20:31:30,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:31:30,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-18 20:31:30,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:31:30,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 50 transitions. [2022-11-18 20:31:30,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:31:30,612 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 27 states and 37 transitions. [2022-11-18 20:31:30,612 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-18 20:31:30,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-18 20:31:30,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 37 transitions. [2022-11-18 20:31:30,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:31:30,613 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2022-11-18 20:31:30,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 37 transitions. [2022-11-18 20:31:30,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-11-18 20:31:30,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:30,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2022-11-18 20:31:30,616 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 33 transitions. [2022-11-18 20:31:30,616 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2022-11-18 20:31:30,616 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 20:31:30,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2022-11-18 20:31:30,617 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:31:30,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:31:30,617 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:31:30,618 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:30,618 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:31:30,618 INFO L748 eck$LassoCheckResult]: Stem: 427#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 428#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#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~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem10#1, test_fun_#t~mem6#1, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~short9#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem12#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_~c~0#1.base, test_fun_~c~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 test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 434#L555-3 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 435#L555-1 assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 431#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 433#L557-1 assume !test_fun_#t~short9#1; 443#L557-3 assume !test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1; 439#L557-6 call test_fun_#t~mem11#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem11#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem11#1; 436#L555-3 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 438#L555-1 assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 429#L557-5 [2022-11-18 20:31:30,619 INFO L750 eck$LassoCheckResult]: Loop: 429#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 430#L557-1 assume test_fun_#t~short9#1;call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem8#1 < 1073741824; 440#L557-3 assume !!test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(2 * test_fun_#t~mem10#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 429#L557-5 [2022-11-18 20:31:30,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:30,619 INFO L85 PathProgramCache]: Analyzing trace with hash 765805624, now seen corresponding path program 2 times [2022-11-18 20:31:30,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:30,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969540930] [2022-11-18 20:31:30,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:30,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:30,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:30,671 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:30,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:30,672 INFO L85 PathProgramCache]: Analyzing trace with hash 46776, now seen corresponding path program 2 times [2022-11-18 20:31:30,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:30,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405335996] [2022-11-18 20:31:30,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:30,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:30,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:30,697 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:30,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:30,699 INFO L85 PathProgramCache]: Analyzing trace with hash -750914783, now seen corresponding path program 1 times [2022-11-18 20:31:30,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:30,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463557486] [2022-11-18 20:31:30,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:30,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:31,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:31,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:31,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:31,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463557486] [2022-11-18 20:31:31,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463557486] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:31:31,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742350318] [2022-11-18 20:31:31,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:31,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:31:31,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:31,305 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:31:31,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-18 20:31:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:31,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 20:31:31,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:31,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:31:31,698 INFO L321 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-11-18 20:31:31,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 38 [2022-11-18 20:31:31,845 INFO L321 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-11-18 20:31:31,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 44 [2022-11-18 20:31:31,935 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:31:31,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2022-11-18 20:31:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:32,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:31:32,380 INFO L350 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 74 treesize of output 66 [2022-11-18 20:31:32,398 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:32,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742350318] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:31:32,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:31:32,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 20 [2022-11-18 20:31:32,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493075569] [2022-11-18 20:31:32,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:31:32,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:32,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 20:31:32,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:31:32,544 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand has 20 states, 20 states have (on average 1.65) internal successors, (33), 20 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:33,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:33,026 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2022-11-18 20:31:33,026 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 55 transitions. [2022-11-18 20:31:33,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:31:33,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 30 states and 35 transitions. [2022-11-18 20:31:33,030 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-18 20:31:33,030 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-18 20:31:33,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 35 transitions. [2022-11-18 20:31:33,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:31:33,030 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-11-18 20:31:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 35 transitions. [2022-11-18 20:31:33,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2022-11-18 20:31:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:33,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-11-18 20:31:33,042 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-18 20:31:33,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:31:33,043 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-18 20:31:33,045 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 20:31:33,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2022-11-18 20:31:33,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:31:33,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:31:33,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:31:33,048 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:33,048 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:31:33,048 INFO L748 eck$LassoCheckResult]: Stem: 614#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 615#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#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~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem10#1, test_fun_#t~mem6#1, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~short9#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem12#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_~c~0#1.base, test_fun_~c~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 test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 616#L555-3 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 617#L555-1 assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 623#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 624#L557-1 assume test_fun_#t~short9#1;call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem8#1 < 1073741824; 627#L557-3 assume !!test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(2 * test_fun_#t~mem10#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 628#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 630#L557-1 assume !test_fun_#t~short9#1; 631#L557-3 assume !test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1; 625#L557-6 call test_fun_#t~mem11#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem11#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem11#1; 618#L555-3 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 620#L555-1 assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 621#L557-5 [2022-11-18 20:31:33,049 INFO L750 eck$LassoCheckResult]: Loop: 621#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 622#L557-1 assume test_fun_#t~short9#1;call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem8#1 < 1073741824; 626#L557-3 assume !!test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(2 * test_fun_#t~mem10#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 621#L557-5 [2022-11-18 20:31:33,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:33,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1418285825, now seen corresponding path program 2 times [2022-11-18 20:31:33,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:33,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728805277] [2022-11-18 20:31:33,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:33,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:33,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:33,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:33,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:33,133 INFO L85 PathProgramCache]: Analyzing trace with hash 46776, now seen corresponding path program 3 times [2022-11-18 20:31:33,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:33,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548959043] [2022-11-18 20:31:33,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:33,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:33,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:33,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:33,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:33,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1735228488, now seen corresponding path program 3 times [2022-11-18 20:31:33,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:33,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30822436] [2022-11-18 20:31:33,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:33,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:33,850 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:33,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:33,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30822436] [2022-11-18 20:31:33,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30822436] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:31:33,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676989238] [2022-11-18 20:31:33,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:31:33,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:31:33,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:33,856 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:31:33,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-18 20:31:34,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 20:31:34,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:31:34,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-18 20:31:34,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:34,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:31:34,090 INFO L350 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 28 treesize of output 16 [2022-11-18 20:31:34,260 INFO L321 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-11-18 20:31:34,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 38 [2022-11-18 20:31:34,397 INFO L321 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-11-18 20:31:34,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 44 [2022-11-18 20:31:34,471 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:31:34,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2022-11-18 20:31:34,516 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:34,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:31:47,144 INFO L350 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 74 treesize of output 66 [2022-11-18 20:31:47,165 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:47,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676989238] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:31:47,165 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:31:47,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 9] total 24 [2022-11-18 20:31:47,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376210201] [2022-11-18 20:31:47,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:31:47,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:47,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 20:31:47,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=443, Unknown=1, NotChecked=0, Total=552 [2022-11-18 20:31:47,422 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. cyclomatic complexity: 8 Second operand has 24 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:48,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:48,658 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2022-11-18 20:31:48,659 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 65 transitions. [2022-11-18 20:31:48,660 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:31:48,661 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 38 states and 43 transitions. [2022-11-18 20:31:48,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-11-18 20:31:48,661 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-18 20:31:48,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 43 transitions. [2022-11-18 20:31:48,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:31:48,662 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-11-18 20:31:48,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 43 transitions. [2022-11-18 20:31:48,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2022-11-18 20:31:48,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:48,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-18 20:31:48,666 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-18 20:31:48,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 20:31:48,666 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-18 20:31:48,667 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-18 20:31:48,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 34 transitions. [2022-11-18 20:31:48,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:31:48,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:31:48,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:31:48,669 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:31:48,669 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:31:48,669 INFO L748 eck$LassoCheckResult]: Stem: 846#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 847#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#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~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem10#1, test_fun_#t~mem6#1, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~short9#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem12#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_~c~0#1.base, test_fun_~c~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 test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 852#L555-3 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 853#L555-1 assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 874#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 873#L557-1 assume test_fun_#t~short9#1;call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem8#1 < 1073741824; 859#L557-3 assume !!test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(2 * test_fun_#t~mem10#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 860#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 869#L557-1 assume test_fun_#t~short9#1;call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem8#1 < 1073741824; 867#L557-3 assume !!test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(2 * test_fun_#t~mem10#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 868#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 863#L557-1 assume !test_fun_#t~short9#1; 862#L557-3 assume !test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1; 857#L557-6 call test_fun_#t~mem11#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem11#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem11#1; 854#L555-3 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 856#L555-1 assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 848#L557-5 [2022-11-18 20:31:48,669 INFO L750 eck$LassoCheckResult]: Loop: 848#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 849#L557-1 assume test_fun_#t~short9#1;call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem8#1 < 1073741824; 858#L557-3 assume !!test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(2 * test_fun_#t~mem10#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 848#L557-5 [2022-11-18 20:31:48,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:48,670 INFO L85 PathProgramCache]: Analyzing trace with hash 433972120, now seen corresponding path program 4 times [2022-11-18 20:31:48,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:48,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627967055] [2022-11-18 20:31:48,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:48,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:48,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:48,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:48,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:48,722 INFO L85 PathProgramCache]: Analyzing trace with hash 46776, now seen corresponding path program 4 times [2022-11-18 20:31:48,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:48,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239318458] [2022-11-18 20:31:48,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:48,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:48,729 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:48,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:48,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:48,736 INFO L85 PathProgramCache]: Analyzing trace with hash 611882945, now seen corresponding path program 5 times [2022-11-18 20:31:48,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:48,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893579503] [2022-11-18 20:31:48,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:48,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:48,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:31:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:31:48,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:31:53,978 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:31:53,978 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:31:53,978 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:31:53,978 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:31:53,978 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:31:53,979 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:53,979 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:31:53,979 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:31:53,979 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv-alloca.i_Iteration7_Lasso [2022-11-18 20:31:53,979 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:31:53,979 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:31:53,984 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:53,987 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:53,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:53,995 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:53,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:54,002 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:54,005 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:54,007 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:54,893 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:54,895 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:54,898 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:54,901 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:54,904 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:54,908 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:54,910 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:54,914 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:54,916 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:31:55,826 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:31:55,827 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:31:55,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:55,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:55,859 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:55,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-18 20:31:55,863 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 [2022-11-18 20:31:55,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:55,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:55,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:55,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:55,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:55,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:55,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:55,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:55,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:55,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:55,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:55,885 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:55,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-18 20:31:55,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:31:55,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:55,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:55,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:55,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:55,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:55,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:55,906 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:55,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-11-18 20:31:55,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:55,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:55,911 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:55,914 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 [2022-11-18 20:31:55,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-18 20:31:55,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:55,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:55,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:55,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:55,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:55,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:55,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:55,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:55,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-11-18 20:31:55,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:55,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:55,933 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:55,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-18 20:31:55,937 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 [2022-11-18 20:31:55,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:55,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:55,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:55,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:55,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:55,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:55,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:55,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:55,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-11-18 20:31:55,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:55,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:55,956 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:55,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-18 20:31:55,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:31:55,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:55,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:55,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:55,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:55,973 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:55,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:55,985 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:55,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:55,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:55,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:55,993 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:55,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-18 20:31:55,996 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 [2022-11-18 20:31:56,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:56,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:56,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:56,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:56,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:56,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:56,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:56,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:56,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-11-18 20:31:56,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:56,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:56,018 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:56,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-18 20:31:56,020 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 [2022-11-18 20:31:56,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:56,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:31:56,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:56,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:56,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:56,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:31:56,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:31:56,042 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:31:56,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:56,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:56,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:56,053 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:56,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-18 20:31:56,058 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 [2022-11-18 20:31:56,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:31:56,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:31:56,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:31:56,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:31:56,084 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:31:56,084 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:31:56,107 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:31:56,136 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2022-11-18 20:31:56,136 INFO L444 ModelExtractionUtils]: 7 out of 19 variables were initially zero. Simplification set additionally 7 variables to zero. [2022-11-18 20:31:56,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:31:56,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:56,139 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:56,147 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:31:56,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-18 20:31:56,163 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-18 20:31:56,163 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:31:56,163 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0#1.base) ULTIMATE.start_test_fun_~y_ref~0#1.offset)_3) = -2*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0#1.base) ULTIMATE.start_test_fun_~y_ref~0#1.offset)_3 + 2147483647 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0#1.base) ULTIMATE.start_test_fun_~y_ref~0#1.offset)_3 - 1 >= 0] [2022-11-18 20:31:56,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:56,291 INFO L156 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2022-11-18 20:31:56,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:56,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:31:56,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:56,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:31:56,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:56,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:56,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:56,591 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 [2022-11-18 20:31:56,591 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 34 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:31:56,654 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 34 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 38 states and 45 transitions. Complement of second has 7 states. [2022-11-18 20:31:56,657 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 [2022-11-18 20:31:56,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:31:56,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-11-18 20:31:56,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-18 20:31:56,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:31:56,659 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:31:56,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:56,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:31:56,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:56,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:31:56,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:56,903 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:31:56,904 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 34 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:31:56,963 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 34 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 38 states and 45 transitions. Complement of second has 7 states. [2022-11-18 20:31:56,964 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 [2022-11-18 20:31:56,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:31:56,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-11-18 20:31:56,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-18 20:31:56,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:31:56,965 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:31:57,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:57,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:31:57,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:57,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:31:57,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:57,202 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:31:57,202 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 34 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:31:57,274 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 34 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 45 states and 55 transitions. Complement of second has 6 states. [2022-11-18 20:31:57,275 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 [2022-11-18 20:31:57,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:31:57,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-18 20:31:57,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-18 20:31:57,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:31:57,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 19 letters. Loop has 3 letters. [2022-11-18 20:31:57,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:31:57,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 6 letters. [2022-11-18 20:31:57,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:31:57,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 55 transitions. [2022-11-18 20:31:57,280 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:31:57,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2022-11-18 20:31:57,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 20:31:57,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 20:31:57,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 20:31:57,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:57,281 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:31:57,282 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:31:57,282 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:31:57,282 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-18 20:31:57,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:31:57,282 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:31:57,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 20:31:57,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:31:57 BoogieIcfgContainer [2022-11-18 20:31:57,290 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 20:31:57,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:31:57,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:31:57,291 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:31:57,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:31:21" (3/4) ... [2022-11-18 20:31:57,295 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:31:57,296 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:31:57,296 INFO L158 Benchmark]: Toolchain (without parser) took 36771.38ms. Allocated memory was 136.3MB in the beginning and 268.4MB in the end (delta: 132.1MB). Free memory was 101.4MB in the beginning and 190.4MB in the end (delta: -89.1MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2022-11-18 20:31:57,297 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 79.7MB. Free memory is still 34.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:31:57,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 649.78ms. Allocated memory is still 136.3MB. Free memory was 101.4MB in the beginning and 102.8MB in the end (delta: -1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 20:31:57,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.49ms. Allocated memory is still 136.3MB. Free memory was 102.8MB in the beginning and 100.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:31:57,298 INFO L158 Benchmark]: Boogie Preprocessor took 51.26ms. Allocated memory is still 136.3MB. Free memory was 100.7MB in the beginning and 99.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:31:57,298 INFO L158 Benchmark]: RCFGBuilder took 546.16ms. Allocated memory is still 136.3MB. Free memory was 99.4MB in the beginning and 87.3MB in the end (delta: 12.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 20:31:57,299 INFO L158 Benchmark]: BuchiAutomizer took 35453.50ms. Allocated memory was 136.3MB in the beginning and 268.4MB in the end (delta: 132.1MB). Free memory was 87.3MB in the beginning and 190.4MB in the end (delta: -103.1MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2022-11-18 20:31:57,299 INFO L158 Benchmark]: Witness Printer took 5.02ms. Allocated memory is still 268.4MB. Free memory is still 190.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:31:57,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 79.7MB. Free memory is still 34.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 649.78ms. Allocated memory is still 136.3MB. Free memory was 101.4MB in the beginning and 102.8MB in the end (delta: -1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.49ms. Allocated memory is still 136.3MB. Free memory was 102.8MB in the beginning and 100.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.26ms. Allocated memory is still 136.3MB. Free memory was 100.7MB in the beginning and 99.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 546.16ms. Allocated memory is still 136.3MB. Free memory was 99.4MB in the beginning and 87.3MB in the end (delta: 12.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 35453.50ms. Allocated memory was 136.3MB in the beginning and 268.4MB in the end (delta: 132.1MB). Free memory was 87.3MB in the beginning and 190.4MB in the end (delta: -103.1MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * Witness Printer took 5.02ms. Allocated memory is still 268.4MB. Free memory is still 190.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * unknown-#memory_int-unknown[x_ref][x_ref] + 1 and consists of 4 locations. One deterministic module has affine ranking function 2147483647 + -2 * unknown-#memory_int-unknown[y_ref][y_ref] and consists of 4 locations. One nondeterministic module has affine ranking function 2147483647 + -2 * unknown-#memory_int-unknown[y_ref][y_ref] and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 24 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.3s and 8 iterations. TraceHistogramMax:3. Analysis of lassos took 31.6s. Construction of modules took 0.5s. Büchi inclusion checks took 3.0s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 26 StatesRemovedByMinimization, 5 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 121 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 93 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 318 IncrementalHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 55 mSDtfsCounter, 318 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital615 mio100 ax104 hnf100 lsp93 ukn40 mio100 lsp34 div100 bol100 ite100 ukn100 eq187 hnf88 smp95 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 75ms VariablesStem: 9 VariablesLoop: 7 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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! [2022-11-18 20:31:57,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:57,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:57,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b996bf3-23df-466b-b643-2e12eaeeb643/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE