./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 6b4ec56b 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_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/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_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN --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-6b4ec56 [2022-11-20 12:42:57,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:42:57,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:42:57,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:42:57,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:42:57,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:42:57,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:42:57,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:42:57,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:42:57,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:42:57,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:42:57,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:42:57,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:42:57,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:42:57,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:42:57,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:42:57,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:42:57,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:42:57,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:42:57,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:42:57,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:42:57,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:42:57,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:42:57,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:42:57,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:42:57,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:42:57,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:42:57,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:42:57,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:42:57,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:42:57,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:42:57,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:42:57,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:42:57,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:42:57,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:42:57,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:42:57,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:42:57,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:42:57,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:42:57,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:42:57,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:42:57,611 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 12:42:57,632 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:42:57,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:42:57,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:42:57,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:42:57,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:42:57,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:42:57,634 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:42:57,634 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 12:42:57,634 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 12:42:57,635 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 12:42:57,635 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 12:42:57,635 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 12:42:57,635 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 12:42:57,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:42:57,636 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:42:57,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:42:57,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:42:57,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 12:42:57,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 12:42:57,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 12:42:57,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:42:57,637 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 12:42:57,637 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:42:57,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 12:42:57,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:42:57,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:42:57,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:42:57,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:42:57,639 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 12:42:57,639 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_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f49dce48b63f0ee8eed4ac47c25c384a83e3c23200b58c130c184e2b953e32f3 [2022-11-20 12:42:57,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:42:57,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:42:57,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:42:57,975 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:42:57,975 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:42:57,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i [2022-11-20 12:43:01,141 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:43:01,427 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:43:01,428 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i [2022-11-20 12:43:01,439 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/data/6af7e0891/6e97fa7a00da45988fa6853b946cbe57/FLAG657b91171 [2022-11-20 12:43:01,453 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/data/6af7e0891/6e97fa7a00da45988fa6853b946cbe57 [2022-11-20 12:43:01,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:43:01,457 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:43:01,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:43:01,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:43:01,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:43:01,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:01,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fda1d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01, skipping insertion in model container [2022-11-20 12:43:01,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:01,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:43:01,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:43:01,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:43:01,843 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:43:01,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:43:01,933 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:43:01,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01 WrapperNode [2022-11-20 12:43:01,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:43:01,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:43:01,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:43:01,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:43:01,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:01,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:01,972 INFO L138 Inliner]: procedures = 111, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-20 12:43:01,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:43:01,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:43:01,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:43:01,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:43:01,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:01,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:01,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:01,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:01,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:01,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:01,993 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:01,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:01,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:43:01,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:43:01,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:43:01,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:43:01,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01" (1/1) ... [2022-11-20 12:43:02,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:02,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:02,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:02,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 12:43:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:43:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:43:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:43:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:43:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:43:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:43:02,182 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:43:02,184 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:43:02,331 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:43:02,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:43:02,337 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:43:02,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:43:02 BoogieIcfgContainer [2022-11-20 12:43:02,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:43:02,340 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 12:43:02,340 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 12:43:02,344 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 12:43:02,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:43:02,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:43:01" (1/3) ... [2022-11-20 12:43:02,346 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56f75228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:43:02, skipping insertion in model container [2022-11-20 12:43:02,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:43:02,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:01" (2/3) ... [2022-11-20 12:43:02,346 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56f75228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:43:02, skipping insertion in model container [2022-11-20 12:43:02,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:43:02,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:43:02" (3/3) ... [2022-11-20 12:43:02,348 INFO L332 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv-alloca.i [2022-11-20 12:43:02,401 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 12:43:02,401 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 12:43:02,401 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 12:43:02,402 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 12:43:02,402 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 12:43:02,402 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 12:43:02,402 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 12:43:02,402 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 12:43:02,407 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) [2022-11-20 12:43:02,423 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 12:43:02,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:43:02,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:43:02,429 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:43:02,430 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-20 12:43:02,430 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 12:43:02,430 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) [2022-11-20 12:43:02,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 12:43:02,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:43:02,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:43:02,432 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:43:02,433 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-20 12:43:02,440 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 [2022-11-20 12:43:02,441 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 [2022-11-20 12:43:02,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:02,448 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 12:43:02,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:02,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808769963] [2022-11-20 12:43:02,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:02,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:02,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:02,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:02,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:02,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1144552, now seen corresponding path program 1 times [2022-11-20 12:43:02,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:02,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490419059] [2022-11-20 12:43:02,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:02,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:02,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:43:02,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490419059] [2022-11-20 12:43:02,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490419059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:43:02,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:43:02,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:43:02,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440586368] [2022-11-20 12:43:02,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:43:02,733 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 12:43:02,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:43:02,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:43:02,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:43:02,768 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) [2022-11-20 12:43:02,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:43:02,775 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-11-20 12:43:02,776 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2022-11-20 12:43:02,777 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 12:43:02,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 8 states and 10 transitions. [2022-11-20 12:43:02,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-20 12:43:02,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-20 12:43:02,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2022-11-20 12:43:02,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:43:02,783 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-11-20 12:43:02,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2022-11-20 12:43:02,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-20 12:43:02,806 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) [2022-11-20 12:43:02,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2022-11-20 12:43:02,808 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-11-20 12:43:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:43:02,812 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-11-20 12:43:02,813 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 12:43:02,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2022-11-20 12:43:02,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 12:43:02,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:43:02,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:43:02,814 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:43:02,814 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-20 12:43:02,814 INFO L748 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 35#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem10#1, test_fun_#t~mem6#1, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~short9#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem12#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, test_fun_~c~0#1.base, test_fun_~c~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 36#L555-3 [2022-11-20 12:43:02,815 INFO L750 eck$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 [2022-11-20 12:43:02,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:02,816 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-20 12:43:02,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:02,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011940976] [2022-11-20 12:43:02,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:02,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:02,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:02,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:02,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:02,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1099516495, now seen corresponding path program 1 times [2022-11-20 12:43:02,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:02,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840722870] [2022-11-20 12:43:02,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:02,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:03,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:43:03,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840722870] [2022-11-20 12:43:03,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840722870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:43:03,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:43:03,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:43:03,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799451383] [2022-11-20 12:43:03,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:43:03,178 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 12:43:03,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:43:03,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:43:03,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:43:03,180 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) [2022-11-20 12:43:03,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:43:03,242 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2022-11-20 12:43:03,243 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2022-11-20 12:43:03,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-11-20 12:43:03,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2022-11-20 12:43:03,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-20 12:43:03,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-20 12:43:03,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2022-11-20 12:43:03,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:43:03,245 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2022-11-20 12:43:03,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2022-11-20 12:43:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 11. [2022-11-20 12:43:03,247 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) [2022-11-20 12:43:03,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-11-20 12:43:03,247 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-11-20 12:43:03,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:43:03,249 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-11-20 12:43:03,249 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 12:43:03,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2022-11-20 12:43:03,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-20 12:43:03,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:43:03,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:43:03,250 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:43:03,250 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-20 12:43:03,251 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 [2022-11-20 12:43:03,251 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 [2022-11-20 12:43:03,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:03,252 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-11-20 12:43:03,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:03,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450578027] [2022-11-20 12:43:03,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:03,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:03,297 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:03,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:03,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:03,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1099518417, now seen corresponding path program 1 times [2022-11-20 12:43:03,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:03,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234238299] [2022-11-20 12:43:03,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:03,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:03,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:03,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:03,403 INFO L85 PathProgramCache]: Analyzing trace with hash 179567635, now seen corresponding path program 1 times [2022-11-20 12:43:03,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:03,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428776836] [2022-11-20 12:43:03,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:03,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:03,479 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:03,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:04,401 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:43:04,402 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:43:04,402 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:43:04,402 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:43:04,402 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:43:04,403 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:04,403 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:43:04,403 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:43:04,403 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv-alloca.i_Iteration3_Lasso [2022-11-20 12:43:04,403 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:43:04,404 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:43:04,423 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:04,432 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:04,434 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:04,437 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:04,439 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,039 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,044 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,047 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,050 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,053 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,056 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,064 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,067 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,070 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,073 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,075 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,078 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,081 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:05,513 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:43:05,517 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:43:05,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:05,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:05,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:05,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 12:43:05,529 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 [2022-11-20 12:43:05,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:05,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:05,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:05,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:05,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:05,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:05,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:05,568 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:05,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:05,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:05,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:05,581 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:05,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 12:43:05,592 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 [2022-11-20 12:43:05,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:05,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:05,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:05,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:05,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:05,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:05,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:05,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:05,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:05,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:05,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:05,643 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:05,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 12:43:05,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:05,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:05,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:05,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:05,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:05,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:05,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:05,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 12:43:05,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:05,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:05,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:05,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:05,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:05,698 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 [2022-11-20 12:43:05,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:05,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:05,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:05,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:05,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:05,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:05,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:05,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 12:43:05,724 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:05,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:05,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:05,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:05,734 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:05,742 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 [2022-11-20 12:43:05,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:05,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:05,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:05,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:05,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 12:43:05,774 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:05,774 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:05,792 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:05,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:05,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:05,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:05,802 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:05,811 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 [2022-11-20 12:43:05,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:05,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:05,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:05,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:05,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 12:43:05,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:05,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:05,845 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:05,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:05,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:05,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:05,853 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:05,865 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 [2022-11-20 12:43:05,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:05,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:05,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:05,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:05,880 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:05,881 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:05,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 12:43:05,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:05,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:05,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:05,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:05,898 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:05,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 12:43:05,903 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 [2022-11-20 12:43:05,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:05,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:05,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:05,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:05,918 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:05,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:05,940 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:05,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:05,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:05,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:05,949 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:05,956 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 [2022-11-20 12:43:05,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:05,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:05,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:05,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:05,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:05,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:05,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 12:43:05,982 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:05,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:05,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:05,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:05,992 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:06,006 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 [2022-11-20 12:43:06,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:06,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:06,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:06,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:06,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:06,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:06,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 12:43:06,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:06,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:06,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:06,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:06,049 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:06,057 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 [2022-11-20 12:43:06,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:06,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:06,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:06,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:06,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 12:43:06,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:06,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:06,097 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:06,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:06,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:06,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:06,103 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:06,105 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 [2022-11-20 12:43:06,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 12:43:06,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:06,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:06,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:06,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:06,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:06,121 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:06,133 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:06,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:06,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:06,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:06,142 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:06,153 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 [2022-11-20 12:43:06,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:06,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:06,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:06,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:06,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 12:43:06,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:06,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:06,208 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:43:06,256 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-11-20 12:43:06,256 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2022-11-20 12:43:06,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:06,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:06,308 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:06,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 12:43:06,373 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:43:06,395 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-20 12:43:06,395 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:43:06,396 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 [] [2022-11-20 12:43:06,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:06,507 INFO L156 tatePredicateManager]: 19 out of 20 supporting invariants were superfluous and have been removed [2022-11-20 12:43:06,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:06,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 12:43:06,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:43:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:06,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:43:06,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:43:06,683 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 [2022-11-20 12:43:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:06,734 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 [2022-11-20 12:43:06,735 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) [2022-11-20 12:43:06,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:06,842 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. [2022-11-20 12:43:06,843 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 [2022-11-20 12:43:06,845 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) [2022-11-20 12:43:06,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2022-11-20 12:43:06,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-20 12:43:06,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:43:06,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2022-11-20 12:43:06,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:43:06,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 12 letters. [2022-11-20 12:43:06,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:43:06,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2022-11-20 12:43:06,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 12:43:06,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 26 transitions. [2022-11-20 12:43:06,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-20 12:43:06,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-20 12:43:06,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2022-11-20 12:43:06,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:43:06,858 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 26 transitions. [2022-11-20 12:43:06,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2022-11-20 12:43:06,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2022-11-20 12:43:06,860 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) [2022-11-20 12:43:06,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2022-11-20 12:43:06,863 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2022-11-20 12:43:06,863 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2022-11-20 12:43:06,863 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 12:43:06,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2022-11-20 12:43:06,864 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 12:43:06,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:43:06,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:43:06,866 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 12:43:06,866 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 12:43:06,866 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 [2022-11-20 12:43:06,867 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 [2022-11-20 12:43:06,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:06,871 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-11-20 12:43:06,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:06,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107464347] [2022-11-20 12:43:06,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:06,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:06,901 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:06,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:06,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:06,915 INFO L85 PathProgramCache]: Analyzing trace with hash 46776, now seen corresponding path program 1 times [2022-11-20 12:43:06,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:06,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496809834] [2022-11-20 12:43:06,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:06,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:06,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:06,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:06,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:06,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907761, now seen corresponding path program 1 times [2022-11-20 12:43:06,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:06,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008717499] [2022-11-20 12:43:06,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:06,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:06,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:06,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:07,884 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:43:07,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:43:07,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:43:07,885 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:43:07,885 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:43:07,885 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:07,885 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:43:07,885 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:43:07,885 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv-alloca.i_Iteration4_Lasso [2022-11-20 12:43:07,885 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:43:07,886 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:43:07,889 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:07,893 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:07,895 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:07,898 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:07,901 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:07,903 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,475 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,477 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,480 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,488 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,490 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,493 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,496 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,498 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,504 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,506 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:08,962 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:43:08,962 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:43:08,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:08,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:08,968 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:08,978 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 [2022-11-20 12:43:08,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:08,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:08,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:08,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:08,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:08,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:08,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:08,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 12:43:09,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:09,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:09,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:09,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:09,017 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:09,025 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 [2022-11-20 12:43:09,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:09,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:09,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:09,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:09,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:09,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:09,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:09,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 12:43:09,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:09,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:09,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:09,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:09,069 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:09,078 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 [2022-11-20 12:43:09,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 12:43:09,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:09,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:09,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:09,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:09,092 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:09,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:09,108 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:09,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:09,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:09,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:09,117 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:09,126 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 [2022-11-20 12:43:09,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 12:43:09,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:09,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:09,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:09,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:09,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:09,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:09,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:09,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:09,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:09,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:09,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:09,169 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:09,180 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 [2022-11-20 12:43:09,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:09,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:09,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:09,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:09,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:09,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:09,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:09,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 12:43:09,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:09,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:09,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:09,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:09,213 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:09,227 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 [2022-11-20 12:43:09,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:09,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:09,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:09,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:09,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:09,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:09,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 12:43:09,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:09,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:09,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:09,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:09,266 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:09,270 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 [2022-11-20 12:43:09,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:09,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:09,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:09,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:09,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 12:43:09,289 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:09,289 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:09,300 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:09,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:09,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:09,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:09,309 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:09,313 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 12:43:09,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:09,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:09,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:09,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:09,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 12:43:09,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:09,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:09,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:09,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:09,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:09,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:09,355 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:09,359 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 [2022-11-20 12:43:09,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:09,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:09,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:09,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:09,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 12:43:09,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:09,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:09,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:09,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:09,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:09,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:09,383 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:09,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-20 12:43:09,385 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 [2022-11-20 12:43:09,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:09,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:09,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:09,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:09,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:09,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:09,416 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:43:09,428 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-11-20 12:43:09,428 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 12:43:09,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:09,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:09,436 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:09,444 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:43:09,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-20 12:43:09,469 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-20 12:43:09,469 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:43:09,469 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] [2022-11-20 12:43:09,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:09,570 INFO L156 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2022-11-20 12:43:09,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:09,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:43:09,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:43:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:09,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:43:09,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:43:09,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:09,721 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 [2022-11-20 12:43:09,721 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) [2022-11-20 12:43:09,777 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. [2022-11-20 12:43:09,778 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 [2022-11-20 12:43:09,778 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) [2022-11-20 12:43:09,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-11-20 12:43:09,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-20 12:43:09,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:43:09,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-20 12:43:09,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:43:09,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-20 12:43:09,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:43:09,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 50 transitions. [2022-11-20 12:43:09,785 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 12:43:09,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 27 states and 37 transitions. [2022-11-20 12:43:09,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-20 12:43:09,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-20 12:43:09,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 37 transitions. [2022-11-20 12:43:09,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:43:09,786 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2022-11-20 12:43:09,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 37 transitions. [2022-11-20 12:43:09,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-11-20 12:43:09,790 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) [2022-11-20 12:43:09,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2022-11-20 12:43:09,792 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 33 transitions. [2022-11-20 12:43:09,792 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2022-11-20 12:43:09,792 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 12:43:09,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2022-11-20 12:43:09,794 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 12:43:09,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:43:09,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:43:09,795 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 12:43:09,795 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 12:43:09,796 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 [2022-11-20 12:43:09,796 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 [2022-11-20 12:43:09,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:09,796 INFO L85 PathProgramCache]: Analyzing trace with hash 765805624, now seen corresponding path program 2 times [2022-11-20 12:43:09,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:09,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394840968] [2022-11-20 12:43:09,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:09,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:09,825 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:09,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:09,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:09,841 INFO L85 PathProgramCache]: Analyzing trace with hash 46776, now seen corresponding path program 2 times [2022-11-20 12:43:09,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:09,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312740736] [2022-11-20 12:43:09,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:09,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:09,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:09,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:09,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:09,854 INFO L85 PathProgramCache]: Analyzing trace with hash -750914783, now seen corresponding path program 1 times [2022-11-20 12:43:09,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:09,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681165465] [2022-11-20 12:43:09,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:09,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:09,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:10,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:10,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:43:10,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681165465] [2022-11-20 12:43:10,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681165465] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:43:10,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81163462] [2022-11-20 12:43:10,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:10,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:43:10,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:10,417 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:43:10,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-20 12:43:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:10,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-20 12:43:10,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:43:10,556 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 [2022-11-20 12:43:10,730 INFO L321 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-11-20 12:43:10,730 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 [2022-11-20 12:43:10,866 INFO L321 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-11-20 12:43:10,867 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 [2022-11-20 12:43:10,966 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:43:10,967 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 [2022-11-20 12:43:11,030 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:11,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:43:11,327 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 [2022-11-20 12:43:11,344 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:11,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81163462] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:43:11,344 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:43:11,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 20 [2022-11-20 12:43:11,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158045051] [2022-11-20 12:43:11,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:43:11,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:43:11,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 12:43:11,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2022-11-20 12:43:11,471 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) [2022-11-20 12:43:11,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:43:11,827 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2022-11-20 12:43:11,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 55 transitions. [2022-11-20 12:43:11,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 12:43:11,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 30 states and 35 transitions. [2022-11-20 12:43:11,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-20 12:43:11,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-20 12:43:11,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 35 transitions. [2022-11-20 12:43:11,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:43:11,830 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-11-20 12:43:11,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 35 transitions. [2022-11-20 12:43:11,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2022-11-20 12:43:11,832 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) [2022-11-20 12:43:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-11-20 12:43:11,833 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-20 12:43:11,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:43:11,835 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-20 12:43:11,835 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-20 12:43:11,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2022-11-20 12:43:11,835 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 12:43:11,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:43:11,835 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:43:11,836 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:43:11,836 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 12:43:11,836 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 [2022-11-20 12:43:11,836 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 [2022-11-20 12:43:11,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:11,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1418285825, now seen corresponding path program 2 times [2022-11-20 12:43:11,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:11,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425189956] [2022-11-20 12:43:11,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:11,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:11,867 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:11,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:11,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:11,899 INFO L85 PathProgramCache]: Analyzing trace with hash 46776, now seen corresponding path program 3 times [2022-11-20 12:43:11,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:11,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643098505] [2022-11-20 12:43:11,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:11,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:11,906 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:11,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:11,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:11,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1735228488, now seen corresponding path program 3 times [2022-11-20 12:43:11,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:11,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449303013] [2022-11-20 12:43:11,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:11,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:12,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:43:12,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449303013] [2022-11-20 12:43:12,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449303013] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:43:12,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121840329] [2022-11-20 12:43:12,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:43:12,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:43:12,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:12,536 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:43:12,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-20 12:43:12,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-20 12:43:12,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:43:12,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-20 12:43:12,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:43:12,690 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 [2022-11-20 12:43:12,738 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 [2022-11-20 12:43:12,876 INFO L321 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-11-20 12:43:12,876 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 [2022-11-20 12:43:13,012 INFO L321 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-11-20 12:43:13,013 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 [2022-11-20 12:43:13,093 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:43:13,094 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 [2022-11-20 12:43:13,132 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:13,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:43:25,601 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 [2022-11-20 12:43:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:25,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121840329] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:43:25,616 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:43:25,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 9] total 24 [2022-11-20 12:43:25,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339618037] [2022-11-20 12:43:25,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:43:25,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:43:25,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-20 12:43:25,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=443, Unknown=1, NotChecked=0, Total=552 [2022-11-20 12:43:25,803 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) [2022-11-20 12:43:26,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:43:26,763 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2022-11-20 12:43:26,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 65 transitions. [2022-11-20 12:43:26,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 12:43:26,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 38 states and 43 transitions. [2022-11-20 12:43:26,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-11-20 12:43:26,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-20 12:43:26,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 43 transitions. [2022-11-20 12:43:26,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:43:26,766 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-11-20 12:43:26,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 43 transitions. [2022-11-20 12:43:26,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2022-11-20 12:43:26,768 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) [2022-11-20 12:43:26,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-20 12:43:26,768 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-20 12:43:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-20 12:43:26,769 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-20 12:43:26,769 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-20 12:43:26,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 34 transitions. [2022-11-20 12:43:26,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 12:43:26,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:43:26,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:43:26,770 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 12:43:26,771 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 12:43:26,771 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 [2022-11-20 12:43:26,771 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 [2022-11-20 12:43:26,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:26,772 INFO L85 PathProgramCache]: Analyzing trace with hash 433972120, now seen corresponding path program 4 times [2022-11-20 12:43:26,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:26,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851739626] [2022-11-20 12:43:26,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:26,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:26,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:26,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:26,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:26,830 INFO L85 PathProgramCache]: Analyzing trace with hash 46776, now seen corresponding path program 4 times [2022-11-20 12:43:26,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:26,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255022308] [2022-11-20 12:43:26,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:26,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:26,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:26,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:26,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:26,840 INFO L85 PathProgramCache]: Analyzing trace with hash 611882945, now seen corresponding path program 5 times [2022-11-20 12:43:26,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:26,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613521609] [2022-11-20 12:43:26,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:26,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:26,866 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:26,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:30,997 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:43:30,997 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:43:30,997 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:43:30,997 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:43:30,997 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:43:30,997 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:30,998 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:43:30,998 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:43:30,998 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv-alloca.i_Iteration7_Lasso [2022-11-20 12:43:30,998 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:43:30,998 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:43:31,001 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,010 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,014 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,016 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,019 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,023 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,026 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,029 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,824 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,826 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,828 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,831 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,835 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,838 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,840 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:31,844 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:43:32,484 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:43:32,485 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:43:32,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:32,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:32,490 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:32,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-20 12:43:32,492 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 [2022-11-20 12:43:32,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:32,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:32,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:32,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:32,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:32,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:32,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:32,505 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:32,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-11-20 12:43:32,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:32,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:32,508 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:32,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-20 12:43:32,510 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 [2022-11-20 12:43:32,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:32,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:32,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:32,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:32,522 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:32,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:32,525 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:32,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:32,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:32,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:32,529 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:32,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-20 12:43:32,532 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 [2022-11-20 12:43:32,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:32,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:32,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:32,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:32,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:32,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:32,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:32,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:32,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:32,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:32,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:32,547 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:32,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-20 12:43:32,549 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 [2022-11-20 12:43:32,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:32,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:32,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:32,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:32,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:32,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:32,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:32,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:32,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:32,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:32,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:32,564 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:32,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-20 12:43:32,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 12:43:32,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:32,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:32,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:32,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:32,578 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:32,578 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:32,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:32,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:32,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:32,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:32,597 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:32,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-20 12:43:32,600 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 [2022-11-20 12:43:32,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:32,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:32,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:32,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:32,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:32,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:32,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:32,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:32,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:32,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:32,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:32,632 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:32,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-20 12:43:32,636 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 [2022-11-20 12:43:32,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:32,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:43:32,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:32,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:32,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:32,653 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:43:32,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:43:32,662 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:43:32,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-11-20 12:43:32,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:32,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:32,670 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:32,672 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 [2022-11-20 12:43:32,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-20 12:43:32,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:43:32,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:43:32,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:43:32,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:43:32,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:43:32,691 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:43:32,716 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:43:32,736 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2022-11-20 12:43:32,736 INFO L444 ModelExtractionUtils]: 7 out of 19 variables were initially zero. Simplification set additionally 7 variables to zero. [2022-11-20 12:43:32,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:43:32,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:32,742 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:32,744 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:43:32,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-20 12:43:32,769 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-20 12:43:32,769 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:43:32,769 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] [2022-11-20 12:43:32,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:32,874 INFO L156 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2022-11-20 12:43:32,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:32,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:43:32,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:43:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:33,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:43:33,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:43:33,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:33,088 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 [2022-11-20 12:43:33,088 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) [2022-11-20 12:43:33,139 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. [2022-11-20 12:43:33,141 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 [2022-11-20 12:43:33,142 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) [2022-11-20 12:43:33,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-11-20 12:43:33,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-20 12:43:33,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:43:33,143 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 12:43:33,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:33,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:43:33,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:43:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:33,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:43:33,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:43:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:33,345 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 [2022-11-20 12:43:33,345 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) [2022-11-20 12:43:33,393 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. [2022-11-20 12:43:33,395 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 [2022-11-20 12:43:33,396 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) [2022-11-20 12:43:33,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-11-20 12:43:33,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-20 12:43:33,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:43:33,397 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 12:43:33,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:33,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:43:33,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:43:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:33,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:43:33,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:43:33,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:33,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:33,616 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 [2022-11-20 12:43:33,616 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) [2022-11-20 12:43:33,675 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. [2022-11-20 12:43:33,675 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 [2022-11-20 12:43:33,676 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) [2022-11-20 12:43:33,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-20 12:43:33,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-20 12:43:33,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:43:33,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 19 letters. Loop has 3 letters. [2022-11-20 12:43:33,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:43:33,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 6 letters. [2022-11-20 12:43:33,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:43:33,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 55 transitions. [2022-11-20 12:43:33,680 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 12:43:33,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2022-11-20 12:43:33,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 12:43:33,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 12:43:33,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 12:43:33,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:43:33,681 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:43:33,681 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:43:33,681 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:43:33,681 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-20 12:43:33,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:43:33,681 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 12:43:33,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 12:43:33,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:43:33 BoogieIcfgContainer [2022-11-20 12:43:33,689 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 12:43:33,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:43:33,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:43:33,690 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:43:33,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:43:02" (3/4) ... [2022-11-20 12:43:33,693 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:43:33,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:43:33,694 INFO L158 Benchmark]: Toolchain (without parser) took 32236.97ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 134.1MB in the beginning and 195.2MB in the end (delta: -61.1MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-11-20 12:43:33,694 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:43:33,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.30ms. Allocated memory is still 165.7MB. Free memory was 134.1MB in the beginning and 132.0MB in the end (delta: 2.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:43:33,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.13ms. Allocated memory is still 165.7MB. Free memory was 132.0MB in the beginning and 129.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:43:33,696 INFO L158 Benchmark]: Boogie Preprocessor took 22.85ms. Allocated memory is still 165.7MB. Free memory was 129.9MB in the beginning and 128.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:43:33,696 INFO L158 Benchmark]: RCFGBuilder took 342.39ms. Allocated memory is still 165.7MB. Free memory was 128.7MB in the beginning and 116.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:43:33,696 INFO L158 Benchmark]: BuchiAutomizer took 31349.14ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 116.1MB in the beginning and 195.2MB in the end (delta: -79.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:43:33,697 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 239.1MB. Free memory is still 195.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:43:33,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.30ms. Allocated memory is still 165.7MB. Free memory was 134.1MB in the beginning and 132.0MB in the end (delta: 2.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.13ms. Allocated memory is still 165.7MB. Free memory was 132.0MB in the beginning and 129.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.85ms. Allocated memory is still 165.7MB. Free memory was 129.9MB in the beginning and 128.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 342.39ms. Allocated memory is still 165.7MB. Free memory was 128.7MB in the beginning and 116.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 31349.14ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 116.1MB in the beginning and 195.2MB in the end (delta: -79.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 239.1MB. Free memory is still 195.2MB. 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 31.2s and 8 iterations. TraceHistogramMax:3. Analysis of lassos took 28.3s. Construction of modules took 0.4s. Büchi inclusion checks took 2.3s. 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, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 121 SdHoareTripleChecker+Invalid, 0.4s 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: 59ms 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! [2022-11-20 12:43:33,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:33,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-20 12:43:34,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7cd2ebe-e54b-43e6-9922-d74294000283/bin/uautomizer-ug76WZFUDN/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