./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/array17_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 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_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/array17_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c64c4370fd8b6e918e28e5e9f3a24e52a6875ae7268f4c7e3f97f19ee293047c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:18:54,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:18:54,943 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-21 22:18:54,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:18:54,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:18:54,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:18:54,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:18:54,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:18:54,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:18:54,984 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:18:54,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:18:54,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:18:54,987 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:18:54,988 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:18:54,989 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:18:54,990 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:18:54,991 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:18:54,991 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:18:54,992 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:18:54,993 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:18:54,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:18:54,994 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:18:54,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:18:54,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:18:54,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:18:54,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:18:54,997 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:18:54,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:18:54,998 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:18:54,999 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:18:54,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:18:55,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:18:55,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:18:55,001 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:18:55,002 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:18:55,003 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c64c4370fd8b6e918e28e5e9f3a24e52a6875ae7268f4c7e3f97f19ee293047c [2023-11-21 22:18:55,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:18:55,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:18:55,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:18:55,425 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:18:55,426 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:18:55,428 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/termination-15/array17_alloca.i [2023-11-21 22:18:59,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:18:59,591 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:18:59,591 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/sv-benchmarks/c/termination-15/array17_alloca.i [2023-11-21 22:18:59,605 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/data/969cbe73a/becbad30534d4901b6adbfbe06e6858e/FLAG7daf26a59 [2023-11-21 22:18:59,623 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/data/969cbe73a/becbad30534d4901b6adbfbe06e6858e [2023-11-21 22:18:59,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:18:59,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:18:59,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:59,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:18:59,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:18:59,638 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,639 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3ca39e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59, skipping insertion in model container [2023-11-21 22:18:59,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,715 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:19:00,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:00,139 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:19:00,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:00,298 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:19:00,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00 WrapperNode [2023-11-21 22:19:00,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:00,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:00,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:19:00,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:19:00,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (1/1) ... [2023-11-21 22:19:00,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (1/1) ... [2023-11-21 22:19:00,378 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2023-11-21 22:19:00,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:00,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:19:00,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:19:00,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:19:00,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (1/1) ... [2023-11-21 22:19:00,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (1/1) ... [2023-11-21 22:19:00,413 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (1/1) ... [2023-11-21 22:19:00,433 INFO L187 HeapSplitter]: Split 3 memory accesses to 1 slices as follows [3] [2023-11-21 22:19:00,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (1/1) ... [2023-11-21 22:19:00,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (1/1) ... [2023-11-21 22:19:00,439 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (1/1) ... [2023-11-21 22:19:00,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (1/1) ... [2023-11-21 22:19:00,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (1/1) ... [2023-11-21 22:19:00,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (1/1) ... [2023-11-21 22:19:00,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:19:00,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:19:00,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:19:00,458 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:19:00,459 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (1/1) ... [2023-11-21 22:19:00,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:00,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:00,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:00,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:19:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:19:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:19:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:19:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:19:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:19:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:19:00,800 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:19:00,803 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:19:00,975 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:19:00,985 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:19:00,985 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:19:00,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:00 BoogieIcfgContainer [2023-11-21 22:19:00,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:19:00,989 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:19:00,989 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:19:00,997 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:19:00,998 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:19:00,998 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:18:59" (1/3) ... [2023-11-21 22:19:00,999 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e69b9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:19:00, skipping insertion in model container [2023-11-21 22:19:01,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:19:01,000 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:00" (2/3) ... [2023-11-21 22:19:01,004 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e69b9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:19:01, skipping insertion in model container [2023-11-21 22:19:01,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:19:01,006 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:00" (3/3) ... [2023-11-21 22:19:01,007 INFO L332 chiAutomizerObserver]: Analyzing ICFG array17_alloca.i [2023-11-21 22:19:01,099 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:19:01,099 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:19:01,100 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:19:01,100 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:19:01,101 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:19:01,101 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:19:01,101 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:19:01,101 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:19:01,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:01,135 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-21 22:19:01,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:01,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:01,145 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:19:01,147 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:19:01,147 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:19:01,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:01,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-21 22:19:01,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:01,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:01,153 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:19:01,153 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:19:01,162 INFO L748 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 13#L367true assume !(main_~length~0#1 < 1); 10#L367-2true assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 14#L371true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);havoc main_#t~nondet207#1;main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 16#L373true assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 3#L375-3true [2023-11-21 22:19:01,163 INFO L750 eck$LassoCheckResult]: Loop: 3#L375-3true assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 8#L375-2true main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 3#L375-3true [2023-11-21 22:19:01,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:01,169 INFO L85 PathProgramCache]: Analyzing trace with hash 889572334, now seen corresponding path program 1 times [2023-11-21 22:19:01,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:01,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262597095] [2023-11-21 22:19:01,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:01,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:01,319 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:01,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:01,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:01,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 1 times [2023-11-21 22:19:01,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:01,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716839245] [2023-11-21 22:19:01,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:01,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:01,379 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:01,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:01,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:01,394 INFO L85 PathProgramCache]: Analyzing trace with hash 180522064, now seen corresponding path program 1 times [2023-11-21 22:19:01,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:01,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412967051] [2023-11-21 22:19:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:01,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:01,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:01,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:01,998 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:19:01,999 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:19:01,999 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:19:01,999 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:19:02,000 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:19:02,000 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:02,000 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:19:02,000 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:19:02,001 INFO L133 ssoRankerPreferences]: Filename of dumped script: array17_alloca.i_Iteration1_Lasso [2023-11-21 22:19:02,001 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:19:02,002 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:19:02,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:02,046 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:02,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:02,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:02,060 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:02,066 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:02,070 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:02,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:02,080 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:02,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:02,087 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:02,091 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:02,821 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:19:02,826 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:19:02,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:02,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:02,845 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:02,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:02,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 22:19:02,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:02,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:02,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:02,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:02,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:02,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:02,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:02,896 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:02,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:02,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:02,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:02,929 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:02,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:02,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 22:19:02,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:02,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:02,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:02,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:02,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:02,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:02,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:02,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:03,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:03,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:03,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,025 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 [2023-11-21 22:19:03,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 22:19:03,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:03,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:03,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:03,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:03,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:03,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:03,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:03,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:03,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:03,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:03,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,089 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:03,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 22:19:03,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:03,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:03,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:03,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:03,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:03,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:03,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:03,127 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:03,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:03,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:03,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,160 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:03,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 22:19:03,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:03,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:03,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:03,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:03,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:19:03,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:19:03,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:03,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:03,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:03,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,234 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,242 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:03,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 22:19:03,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:03,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:03,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:03,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:03,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:03,259 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:03,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:03,268 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:03,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:03,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:03,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,299 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:03,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 22:19:03,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:03,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:03,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:03,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:03,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:03,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:03,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:03,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:03,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:03,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:03,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,383 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:03,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-21 22:19:03,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:03,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:03,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:03,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:03,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:03,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:03,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:03,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:03,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:03,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:03,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,438 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:03,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-21 22:19:03,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:03,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:03,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:03,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:03,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:03,470 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:03,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:03,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:03,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:03,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:03,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,512 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-21 22:19:03,521 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:03,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:03,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:03,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:03,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:03,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:03,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:03,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:03,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:03,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:03,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:03,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,586 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-21 22:19:03,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:03,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:03,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:03,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:03,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:03,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:03,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:03,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:03,614 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:03,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-21 22:19:03,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:03,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,631 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-21 22:19:03,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:03,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:03,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:03,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:03,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:03,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:19:03,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:19:03,685 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:19:03,720 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2023-11-21 22:19:03,720 INFO L444 ModelExtractionUtils]: 11 out of 19 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-11-21 22:19:03,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:03,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,776 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,784 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:19:03,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-21 22:19:03,815 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 22:19:03,815 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:19:03,816 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~length~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-21 22:19:03,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:03,852 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2023-11-21 22:19:03,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:19:03,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:19:03,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:03,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:03,996 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-21 22:19:03,998 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:04,066 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 47 transitions. Complement of second has 8 states. [2023-11-21 22:19:04,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-21 22:19:04,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2023-11-21 22:19:04,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-21 22:19:04,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:19:04,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-21 22:19:04,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:19:04,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-21 22:19:04,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:19:04,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 47 transitions. [2023-11-21 22:19:04,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:04,092 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 16 transitions. [2023-11-21 22:19:04,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-21 22:19:04,095 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-21 22:19:04,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2023-11-21 22:19:04,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:04,096 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-21 22:19:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2023-11-21 22:19:04,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-21 22:19:04,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:04,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2023-11-21 22:19:04,134 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-21 22:19:04,134 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-21 22:19:04,134 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:19:04,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2023-11-21 22:19:04,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:04,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:04,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:04,139 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:04,139 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:19:04,139 INFO L748 eck$LassoCheckResult]: Stem: 118#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 119#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 120#L367 assume !(main_~length~0#1 < 1); 112#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 113#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);havoc main_#t~nondet207#1;main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 121#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 114#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 115#L375-4 main_~j~0#1 := 1; 110#L380-2 [2023-11-21 22:19:04,140 INFO L750 eck$LassoCheckResult]: Loop: 110#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 111#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 110#L380-2 [2023-11-21 22:19:04,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:04,148 INFO L85 PathProgramCache]: Analyzing trace with hash 180522006, now seen corresponding path program 1 times [2023-11-21 22:19:04,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:04,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529360759] [2023-11-21 22:19:04,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:04,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:04,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:04,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:04,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529360759] [2023-11-21 22:19:04,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529360759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:04,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:04,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:19:04,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537370559] [2023-11-21 22:19:04,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:04,312 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:19:04,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:04,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 1 times [2023-11-21 22:19:04,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:04,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926618512] [2023-11-21 22:19:04,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:04,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:04,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:04,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:04,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:04,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:19:04,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:04,452 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:04,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:04,486 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2023-11-21 22:19:04,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2023-11-21 22:19:04,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:04,488 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2023-11-21 22:19:04,488 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-21 22:19:04,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-21 22:19:04,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2023-11-21 22:19:04,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:04,490 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2023-11-21 22:19:04,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2023-11-21 22:19:04,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-11-21 22:19:04,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:04,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2023-11-21 22:19:04,493 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-11-21 22:19:04,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:19:04,495 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-11-21 22:19:04,495 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 22:19:04,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2023-11-21 22:19:04,496 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:04,496 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:04,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:04,497 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:04,497 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:19:04,498 INFO L748 eck$LassoCheckResult]: Stem: 150#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 151#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 152#L367 assume !(main_~length~0#1 < 1); 144#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 145#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);havoc main_#t~nondet207#1;main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 153#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 146#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 147#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 148#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 149#L375-4 main_~j~0#1 := 1; 142#L380-2 [2023-11-21 22:19:04,498 INFO L750 eck$LassoCheckResult]: Loop: 142#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 143#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 142#L380-2 [2023-11-21 22:19:04,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:04,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1683012600, now seen corresponding path program 1 times [2023-11-21 22:19:04,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:04,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100324031] [2023-11-21 22:19:04,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:04,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:04,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:04,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:04,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:04,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 2 times [2023-11-21 22:19:04,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:04,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107014435] [2023-11-21 22:19:04,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:04,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:04,599 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:04,625 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:04,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:04,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1827560517, now seen corresponding path program 1 times [2023-11-21 22:19:04,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:04,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135464731] [2023-11-21 22:19:04,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:04,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:04,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:04,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135464731] [2023-11-21 22:19:04,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135464731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:04,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213823527] [2023-11-21 22:19:04,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:04,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:04,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:04,814 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:04,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-21 22:19:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:04,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:19:04,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:04,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:04,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:05,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:05,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213823527] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:05,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:19:05,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2023-11-21 22:19:05,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475280112] [2023-11-21 22:19:05,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:05,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:05,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:19:05,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:19:05,159 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:05,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:05,267 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2023-11-21 22:19:05,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2023-11-21 22:19:05,275 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:05,276 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 15 states and 17 transitions. [2023-11-21 22:19:05,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-21 22:19:05,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-21 22:19:05,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2023-11-21 22:19:05,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:19:05,277 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-11-21 22:19:05,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2023-11-21 22:19:05,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-11-21 22:19:05,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:05,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-11-21 22:19:05,280 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-21 22:19:05,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:19:05,283 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-21 22:19:05,283 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-21 22:19:05,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 16 transitions. [2023-11-21 22:19:05,286 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:05,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:05,286 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:05,287 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:05,288 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:19:05,288 INFO L748 eck$LassoCheckResult]: Stem: 272#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 273#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 274#L367 assume !(main_~length~0#1 < 1); 270#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 271#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);havoc main_#t~nondet207#1;main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 275#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 266#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 267#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 268#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 269#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 277#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 276#L375-4 main_~j~0#1 := 1; 264#L380-2 [2023-11-21 22:19:05,288 INFO L750 eck$LassoCheckResult]: Loop: 264#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 265#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 264#L380-2 [2023-11-21 22:19:05,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:05,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1827505318, now seen corresponding path program 2 times [2023-11-21 22:19:05,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:05,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295209304] [2023-11-21 22:19:05,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:05,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:05,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:05,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:05,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:05,394 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 3 times [2023-11-21 22:19:05,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:05,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677722045] [2023-11-21 22:19:05,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:05,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:05,402 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:05,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:05,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:05,410 INFO L85 PathProgramCache]: Analyzing trace with hash 409014941, now seen corresponding path program 2 times [2023-11-21 22:19:05,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:05,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43432712] [2023-11-21 22:19:05,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:05,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:05,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:05,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:05,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:05,989 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:19:05,989 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:19:05,989 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:19:05,989 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:19:05,990 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:19:05,990 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:05,990 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:19:05,990 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:19:05,991 INFO L133 ssoRankerPreferences]: Filename of dumped script: array17_alloca.i_Iteration4_Lasso [2023-11-21 22:19:05,991 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:19:05,991 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:19:05,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:05,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:06,001 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:06,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:06,008 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:06,012 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:06,015 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:06,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:06,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:06,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:06,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:06,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:06,625 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:19:06,625 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:19:06,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:06,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:06,627 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:06,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:06,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-21 22:19:06,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:06,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:06,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:06,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:06,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:06,661 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:06,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:06,688 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:06,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:06,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:06,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:06,719 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:06,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:06,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-21 22:19:06,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:06,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:06,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:06,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:06,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:06,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:06,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:06,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:06,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:06,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:06,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:06,790 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:06,802 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:06,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-21 22:19:06,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:06,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:06,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:06,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:06,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:06,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:06,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:06,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:06,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:06,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:06,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:06,865 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:06,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:06,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-21 22:19:06,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:06,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:06,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:06,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:06,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:06,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:06,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:06,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:06,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:06,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:06,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:06,930 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:06,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:06,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-21 22:19:06,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:06,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:06,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:06,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:06,958 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:19:06,958 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:19:06,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:06,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:06,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:07,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:07,001 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:07,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:07,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-21 22:19:07,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:07,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:07,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:07,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:07,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:07,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:07,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:07,048 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:07,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:07,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:07,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:07,079 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:07,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:07,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-21 22:19:07,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:07,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:07,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:07,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:07,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:19:07,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:19:07,114 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:07,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:07,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:07,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:07,144 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:07,148 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:07,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-21 22:19:07,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:07,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:07,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:07,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:07,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:07,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:07,166 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:07,180 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:07,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-21 22:19:07,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:07,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:07,201 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:07,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:07,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-21 22:19:07,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:07,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:07,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:07,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:07,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:07,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:19:07,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:07,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:07,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-21 22:19:07,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:07,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:07,233 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:07,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-21 22:19:07,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:07,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:07,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:07,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:07,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:07,254 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:19:07,254 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:19:07,270 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:07,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-21 22:19:07,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:07,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:07,295 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:07,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:07,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-21 22:19:07,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:07,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:07,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:07,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:07,322 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:19:07,323 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:19:07,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:19:07,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:07,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:07,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:07,374 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:07,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:07,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-21 22:19:07,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:07,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:07,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:19:07,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:07,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:19:07,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:19:07,432 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:19:07,471 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2023-11-21 22:19:07,471 INFO L444 ModelExtractionUtils]: 1 out of 19 variables were initially zero. Simplification set additionally 14 variables to zero. [2023-11-21 22:19:07,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:07,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:07,474 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:07,476 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:19:07,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-21 22:19:07,501 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 22:19:07,501 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:19:07,501 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_2, ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~arr~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_2 - 4*ULTIMATE.start_main_~j~0#1 - 1*ULTIMATE.start_main_~arr~0#1.offset Supporting invariants [] [2023-11-21 22:19:07,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-21 22:19:07,557 INFO L156 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2023-11-21 22:19:07,560 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[~arr~0!base] could not be translated [2023-11-21 22:19:07,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:07,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:19:07,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:07,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:19:07,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:07,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:07,673 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-21 22:19:07,673 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 16 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:07,717 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 16 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 22 transitions. Complement of second has 5 states. [2023-11-21 22:19:07,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-21 22:19:07,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:07,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2023-11-21 22:19:07,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2023-11-21 22:19:07,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:19:07,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2023-11-21 22:19:07,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:19:07,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-21 22:19:07,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:19:07,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2023-11-21 22:19:07,726 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:07,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 22 transitions. [2023-11-21 22:19:07,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-21 22:19:07,728 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-21 22:19:07,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2023-11-21 22:19:07,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:19:07,728 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-11-21 22:19:07,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2023-11-21 22:19:07,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-21 22:19:07,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 17 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) [2023-11-21 22:19:07,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-11-21 22:19:07,733 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-11-21 22:19:07,733 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-11-21 22:19:07,733 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-21 22:19:07,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. [2023-11-21 22:19:07,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:07,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:07,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:07,737 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:07,737 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:19:07,737 INFO L748 eck$LassoCheckResult]: Stem: 389#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 390#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 391#L367 assume !(main_~length~0#1 < 1); 383#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 384#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);havoc main_#t~nondet207#1;main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 392#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 385#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 386#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 387#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 388#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 395#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 393#L375-4 main_~j~0#1 := 1; 394#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 382#L380 assume !(main_#t~mem210#1 > main_#t~mem211#1);havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post213#1 := main_~j~0#1;main_~j~0#1 := main_#t~post213#1 - 1;havoc main_#t~post213#1; 378#L380-2 [2023-11-21 22:19:07,737 INFO L750 eck$LassoCheckResult]: Loop: 378#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 379#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 378#L380-2 [2023-11-21 22:19:07,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:07,738 INFO L85 PathProgramCache]: Analyzing trace with hash 409014943, now seen corresponding path program 1 times [2023-11-21 22:19:07,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:07,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333122861] [2023-11-21 22:19:07,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:07,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:07,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-21 22:19:08,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:08,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:08,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333122861] [2023-11-21 22:19:08,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333122861] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:08,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755006186] [2023-11-21 22:19:08,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:08,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:08,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:08,546 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:08,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-21 22:19:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:08,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-21 22:19:08,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:08,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-21 22:19:08,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2023-11-21 22:19:08,832 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:19:08,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 12 [2023-11-21 22:19:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:08,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:09,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2023-11-21 22:19:09,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:19:09,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 726 treesize of output 630 [2023-11-21 22:19:09,213 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:09,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755006186] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:09,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:19:09,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 18 [2023-11-21 22:19:09,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462836180] [2023-11-21 22:19:09,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:09,217 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:19:09,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:09,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 4 times [2023-11-21 22:19:09,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:09,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342326672] [2023-11-21 22:19:09,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:09,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:09,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:09,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:09,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:09,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-21 22:19:09,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2023-11-21 22:19:09,340 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. cyclomatic complexity: 7 Second operand has 19 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:09,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:09,941 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2023-11-21 22:19:09,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2023-11-21 22:19:09,942 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2023-11-21 22:19:09,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 29 states and 35 transitions. [2023-11-21 22:19:09,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-21 22:19:09,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-11-21 22:19:09,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 35 transitions. [2023-11-21 22:19:09,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:19:09,963 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-11-21 22:19:09,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 35 transitions. [2023-11-21 22:19:09,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 18. [2023-11-21 22:19:09,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:09,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2023-11-21 22:19:09,965 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2023-11-21 22:19:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-21 22:19:09,973 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2023-11-21 22:19:09,973 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-21 22:19:09,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2023-11-21 22:19:09,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:09,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:09,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:09,974 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:09,974 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:19:09,975 INFO L748 eck$LassoCheckResult]: Stem: 552#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 553#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 554#L367 assume !(main_~length~0#1 < 1); 549#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 550#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);havoc main_#t~nondet207#1;main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 555#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 545#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 546#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 547#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 548#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 557#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 556#L375-4 main_~j~0#1 := 1; 541#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 542#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 543#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 544#L380 assume !(main_#t~mem210#1 > main_#t~mem211#1);havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post213#1 := main_~j~0#1;main_~j~0#1 := main_#t~post213#1 - 1;havoc main_#t~post213#1; 551#L380-2 [2023-11-21 22:19:09,975 INFO L750 eck$LassoCheckResult]: Loop: 551#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 558#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 551#L380-2 [2023-11-21 22:19:09,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:09,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2073631454, now seen corresponding path program 1 times [2023-11-21 22:19:09,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:09,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265737472] [2023-11-21 22:19:09,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:09,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:10,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:10,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265737472] [2023-11-21 22:19:10,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265737472] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:10,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174756089] [2023-11-21 22:19:10,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:10,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:10,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:10,094 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:10,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-21 22:19:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:10,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:19:10,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:10,230 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:10,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:10,278 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:10,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174756089] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:10,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:19:10,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2023-11-21 22:19:10,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986563239] [2023-11-21 22:19:10,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:10,282 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:19:10,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:10,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 5 times [2023-11-21 22:19:10,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:10,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268086416] [2023-11-21 22:19:10,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:10,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:10,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:10,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:10,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:10,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 22:19:10,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:19:10,395 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:10,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:10,497 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2023-11-21 22:19:10,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 28 transitions. [2023-11-21 22:19:10,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:10,502 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 21 states and 24 transitions. [2023-11-21 22:19:10,502 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-21 22:19:10,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-21 22:19:10,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 24 transitions. [2023-11-21 22:19:10,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:19:10,505 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 24 transitions. [2023-11-21 22:19:10,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 24 transitions. [2023-11-21 22:19:10,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2023-11-21 22:19:10,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.15) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-11-21 22:19:10,509 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-11-21 22:19:10,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:19:10,512 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-11-21 22:19:10,512 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-21 22:19:10,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2023-11-21 22:19:10,516 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:10,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:10,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:10,518 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:10,518 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:19:10,518 INFO L748 eck$LassoCheckResult]: Stem: 706#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 707#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 708#L367 assume !(main_~length~0#1 < 1); 704#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 705#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);havoc main_#t~nondet207#1;main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 709#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 700#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 701#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 702#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 703#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 714#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 713#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 712#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 710#L375-4 main_~j~0#1 := 1; 711#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 699#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 697#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 698#L380 assume !(main_#t~mem210#1 > main_#t~mem211#1);havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post213#1 := main_~j~0#1;main_~j~0#1 := main_#t~post213#1 - 1;havoc main_#t~post213#1; 695#L380-2 [2023-11-21 22:19:10,519 INFO L750 eck$LassoCheckResult]: Loop: 695#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 696#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 695#L380-2 [2023-11-21 22:19:10,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:10,519 INFO L85 PathProgramCache]: Analyzing trace with hash -457174268, now seen corresponding path program 2 times [2023-11-21 22:19:10,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:10,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756598533] [2023-11-21 22:19:10,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:10,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:11,091 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:11,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:11,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756598533] [2023-11-21 22:19:11,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756598533] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:11,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294540459] [2023-11-21 22:19:11,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:19:11,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:11,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:11,095 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:11,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-21 22:19:11,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:19:11,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:19:11,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-21 22:19:11,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:11,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-21 22:19:11,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2023-11-21 22:19:11,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:19:11,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2023-11-21 22:19:11,505 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:11,505 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:11,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2023-11-21 22:19:11,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:19:11,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 184 treesize of output 152 [2023-11-21 22:19:11,802 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:11,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294540459] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:11,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:19:11,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10] total 23 [2023-11-21 22:19:11,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711332513] [2023-11-21 22:19:11,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:11,804 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:19:11,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:11,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 6 times [2023-11-21 22:19:11,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:11,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097645760] [2023-11-21 22:19:11,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:11,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:11,809 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:11,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:11,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:11,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-21 22:19:11,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2023-11-21 22:19:11,918 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. cyclomatic complexity: 6 Second operand has 24 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 24 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:12,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:12,748 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2023-11-21 22:19:12,748 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 71 transitions. [2023-11-21 22:19:12,749 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2023-11-21 22:19:12,750 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 56 states and 68 transitions. [2023-11-21 22:19:12,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2023-11-21 22:19:12,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2023-11-21 22:19:12,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 68 transitions. [2023-11-21 22:19:12,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:19:12,751 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 68 transitions. [2023-11-21 22:19:12,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 68 transitions. [2023-11-21 22:19:12,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 30. [2023-11-21 22:19:12,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2023-11-21 22:19:12,757 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 36 transitions. [2023-11-21 22:19:12,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-21 22:19:12,758 INFO L428 stractBuchiCegarLoop]: Abstraction has 30 states and 36 transitions. [2023-11-21 22:19:12,759 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-21 22:19:12,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 36 transitions. [2023-11-21 22:19:12,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:12,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:12,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:12,761 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:12,761 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:19:12,761 INFO L748 eck$LassoCheckResult]: Stem: 935#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 936#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 937#L367 assume !(main_~length~0#1 < 1); 926#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 927#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);havoc main_#t~nondet207#1;main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 938#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 928#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 929#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 943#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 944#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 930#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 931#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 941#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 939#L375-4 main_~j~0#1 := 1; 940#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 946#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 925#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 924#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 934#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 932#L380 assume !(main_#t~mem210#1 > main_#t~mem211#1);havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post213#1 := main_~j~0#1;main_~j~0#1 := main_#t~post213#1 - 1;havoc main_#t~post213#1; 933#L380-2 [2023-11-21 22:19:12,762 INFO L750 eck$LassoCheckResult]: Loop: 933#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 945#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 933#L380-2 [2023-11-21 22:19:12,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:12,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1257807801, now seen corresponding path program 3 times [2023-11-21 22:19:12,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:12,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584903751] [2023-11-21 22:19:12,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:12,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:12,914 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:12,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:12,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584903751] [2023-11-21 22:19:12,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584903751] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:12,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263856340] [2023-11-21 22:19:12,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 22:19:12,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:12,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:12,922 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:12,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-21 22:19:13,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-21 22:19:13,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:19:13,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:19:13,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:13,156 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:13,156 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:13,240 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:13,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263856340] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:13,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:19:13,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 14 [2023-11-21 22:19:13,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611132465] [2023-11-21 22:19:13,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:13,242 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:19:13,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:13,244 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 7 times [2023-11-21 22:19:13,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:13,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917190839] [2023-11-21 22:19:13,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:13,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:13,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:13,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:13,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:13,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 22:19:13,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:19:13,367 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. cyclomatic complexity: 9 Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:13,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:13,505 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2023-11-21 22:19:13,505 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2023-11-21 22:19:13,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:13,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 30 states and 35 transitions. [2023-11-21 22:19:13,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-11-21 22:19:13,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-21 22:19:13,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 35 transitions. [2023-11-21 22:19:13,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:19:13,511 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-11-21 22:19:13,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 35 transitions. [2023-11-21 22:19:13,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-21 22:19:13,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:13,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-11-21 22:19:13,520 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-11-21 22:19:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:19:13,525 INFO L428 stractBuchiCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-11-21 22:19:13,525 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-21 22:19:13,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 35 transitions. [2023-11-21 22:19:13,526 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:19:13,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:13,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:13,528 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:13,528 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:19:13,529 INFO L748 eck$LassoCheckResult]: Stem: 1141#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1142#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 1143#L367 assume !(main_~length~0#1 < 1); 1136#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 1137#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);havoc main_#t~nondet207#1;main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 1140#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 1132#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 1133#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1134#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 1135#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1146#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 1157#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1156#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int#0(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 1155#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1147#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 1144#L375-4 main_~j~0#1 := 1; 1145#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 1139#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 1130#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 1131#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 1149#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 1138#L380 assume !(main_#t~mem210#1 > main_#t~mem211#1);havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post213#1 := main_~j~0#1;main_~j~0#1 := main_#t~post213#1 - 1;havoc main_#t~post213#1; 1128#L380-2 [2023-11-21 22:19:13,529 INFO L750 eck$LassoCheckResult]: Loop: 1128#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 1129#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 1128#L380-2 [2023-11-21 22:19:13,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:13,530 INFO L85 PathProgramCache]: Analyzing trace with hash -948777687, now seen corresponding path program 4 times [2023-11-21 22:19:13,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:13,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187951934] [2023-11-21 22:19:13,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:13,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:14,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:14,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187951934] [2023-11-21 22:19:14,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187951934] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:19:14,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726548865] [2023-11-21 22:19:14,339 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-21 22:19:14,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:14,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:14,345 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:14,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f4bd3-ea7e-4833-8224-f674f73c67c2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-21 22:19:14,443 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-21 22:19:14,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:19:14,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-21 22:19:14,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:14,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-11-21 22:19:14,678 INFO L349 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-11-21 22:19:14,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2023-11-21 22:19:15,450 INFO L349 Elim1Store]: treesize reduction 38, result has 15.6 percent of original size [2023-11-21 22:19:15,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 36 [2023-11-21 22:19:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:15,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:25,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2023-11-21 22:19:25,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:19:25,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 494 treesize of output 390 [2023-11-21 22:19:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:25,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726548865] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:25,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:19:25,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 31 [2023-11-21 22:19:25,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111843689] [2023-11-21 22:19:25,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:25,330 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:19:25,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:25,330 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 8 times [2023-11-21 22:19:25,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:25,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831291538] [2023-11-21 22:19:25,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:25,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:25,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:25,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:25,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:25,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-21 22:19:25,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=830, Unknown=0, NotChecked=0, Total=992 [2023-11-21 22:19:25,464 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. cyclomatic complexity: 8 Second operand has 32 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:38,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-21 22:19:51,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]