./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/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_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/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_4693577d-f098-4945-ac80-e9d7bbc44822/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 956a7be0aa4123ddc345c58470e6c6f0d648bcd1784c1fbfd2df8e05f06ac7cd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:00:38,673 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:00:38,742 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-21 21:00:38,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:00:38,748 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:00:38,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:00:38,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:00:38,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:00:38,779 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:00:38,780 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:00:38,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:00:38,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:00:38,782 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:00:38,783 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 21:00:38,784 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 21:00:38,785 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 21:00:38,785 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 21:00:38,786 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 21:00:38,787 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 21:00:38,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:00:38,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 21:00:38,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:00:38,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:00:38,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 21:00:38,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 21:00:38,792 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 21:00:38,792 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:00:38,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:00:38,794 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 21:00:38,794 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:00:38,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:00:38,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:00:38,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:00:38,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:00:38,798 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 21:00:38,798 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_4693577d-f098-4945-ac80-e9d7bbc44822/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 956a7be0aa4123ddc345c58470e6c6f0d648bcd1784c1fbfd2df8e05f06ac7cd [2023-11-21 21:00:39,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:00:39,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:00:39,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:00:39,106 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:00:39,107 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:00:39,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i [2023-11-21 21:00:42,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:00:42,583 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:00:42,584 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i [2023-11-21 21:00:42,597 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/data/5c1ee75fa/00784797d5f04f1f9feb6b77b09d0d4d/FLAG66afcf155 [2023-11-21 21:00:42,612 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/data/5c1ee75fa/00784797d5f04f1f9feb6b77b09d0d4d [2023-11-21 21:00:42,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:00:42,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:00:42,619 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:42,619 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:00:42,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:00:42,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:42" (1/1) ... [2023-11-21 21:00:42,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7300b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:42, skipping insertion in model container [2023-11-21 21:00:42,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:42" (1/1) ... [2023-11-21 21:00:42,669 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:00:43,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:43,030 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:00:43,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:43,136 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:00:43,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43 WrapperNode [2023-11-21 21:00:43,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:43,138 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:43,138 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:00:43,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:00:43,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (1/1) ... [2023-11-21 21:00:43,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (1/1) ... [2023-11-21 21:00:43,182 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2023-11-21 21:00:43,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:43,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:00:43,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:00:43,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:00:43,195 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (1/1) ... [2023-11-21 21:00:43,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (1/1) ... [2023-11-21 21:00:43,198 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (1/1) ... [2023-11-21 21:00:43,209 INFO L187 HeapSplitter]: Split 7 memory accesses to 2 slices as follows [4, 3] [2023-11-21 21:00:43,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (1/1) ... [2023-11-21 21:00:43,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (1/1) ... [2023-11-21 21:00:43,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (1/1) ... [2023-11-21 21:00:43,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (1/1) ... [2023-11-21 21:00:43,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (1/1) ... [2023-11-21 21:00:43,221 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (1/1) ... [2023-11-21 21:00:43,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:00:43,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:00:43,225 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:00:43,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:00:43,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (1/1) ... [2023-11-21 21:00:43,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:43,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:43,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:43,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 21:00:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 21:00:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 21:00:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 21:00:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 21:00:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:00:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:00:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:00:43,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:00:43,421 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:00:43,423 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:00:43,616 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:00:43,625 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:00:43,625 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 21:00:43,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:43 BoogieIcfgContainer [2023-11-21 21:00:43,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:00:43,628 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 21:00:43,629 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 21:00:43,633 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 21:00:43,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:00:43,634 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 09:00:42" (1/3) ... [2023-11-21 21:00:43,635 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c6a5a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:00:43, skipping insertion in model container [2023-11-21 21:00:43,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:00:43,636 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:43" (2/3) ... [2023-11-21 21:00:43,636 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c6a5a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:00:43, skipping insertion in model container [2023-11-21 21:00:43,636 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:00:43,637 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:43" (3/3) ... [2023-11-21 21:00:43,638 INFO L332 chiAutomizerObserver]: Analyzing ICFG cstrcmp_reverse_alloca.i [2023-11-21 21:00:43,698 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 21:00:43,699 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 21:00:43,699 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 21:00:43,699 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 21:00:43,699 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 21:00:43,700 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 21:00:43,700 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 21:00:43,700 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 21:00:43,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:43,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 21:00:43,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:43,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:43,744 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-21 21:00:43,745 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:00:43,745 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 21:00:43,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:43,749 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 21:00:43,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:43,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:43,750 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-21 21:00:43,750 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:00:43,760 INFO L748 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet213#1, main_#t~nondet214#1, main_#t~malloc215#1.base, main_#t~malloc215#1.offset, main_#t~malloc216#1.base, main_#t~malloc216#1.offset, main_#t~ret217#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet213#1;main_~length1~0#1 := main_#t~nondet213#1;havoc main_#t~nondet213#1;havoc main_#t~nondet214#1;main_~length2~0#1 := main_#t~nondet214#1;havoc main_#t~nondet214#1; 9#L378true assume !(main_~length1~0#1 < 1); 12#L378-2true assume !(main_~length2~0#1 < 1); 11#L381-1true call main_#t~malloc215#1.base, main_#t~malloc215#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc215#1.base, main_#t~malloc215#1.offset;call main_#t~malloc216#1.base, main_#t~malloc216#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc216#1.base, main_#t~malloc216#1.offset;call write~int#0(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, 1);call write~int#1(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, 1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1);assume { :begin_inline_cstrcmp } true;cstrcmp_#in~s1#1.base, cstrcmp_#in~s1#1.offset, cstrcmp_#in~s2#1.base, cstrcmp_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcmp_#res#1;havoc cstrcmp_#t~post209#1.base, cstrcmp_#t~post209#1.offset, cstrcmp_#t~post210#1.base, cstrcmp_#t~post210#1.offset, cstrcmp_#t~mem205#1, cstrcmp_#t~mem206#1, cstrcmp_#t~mem207#1, cstrcmp_#t~short208#1, cstrcmp_#t~mem211#1, cstrcmp_#t~mem212#1, cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset, cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset, cstrcmp_~uc1~0#1, cstrcmp_~uc2~0#1;cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset := cstrcmp_#in~s1#1.base, cstrcmp_#in~s1#1.offset;cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset := cstrcmp_#in~s2#1.base, cstrcmp_#in~s2#1.offset;havoc cstrcmp_~uc1~0#1;havoc cstrcmp_~uc2~0#1; 6#L367-5true [2023-11-21 21:00:43,761 INFO L750 eck$LassoCheckResult]: Loop: 6#L367-5true call cstrcmp_#t~mem205#1 := read~int#0(cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset, 1);cstrcmp_#t~short208#1 := 0 != cstrcmp_#t~mem205#1; 13#L367-1true assume cstrcmp_#t~short208#1;call cstrcmp_#t~mem206#1 := read~int#0(cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset, 1);call cstrcmp_#t~mem207#1 := read~int#1(cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset, 1);cstrcmp_#t~short208#1 := cstrcmp_#t~mem206#1 == cstrcmp_#t~mem207#1; 2#L367-3true assume !!cstrcmp_#t~short208#1;havoc cstrcmp_#t~mem205#1;havoc cstrcmp_#t~mem206#1;havoc cstrcmp_#t~mem207#1;havoc cstrcmp_#t~short208#1;cstrcmp_#t~post209#1.base, cstrcmp_#t~post209#1.offset := cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset;cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset := cstrcmp_#t~post209#1.base, cstrcmp_#t~post209#1.offset - 1;havoc cstrcmp_#t~post209#1.base, cstrcmp_#t~post209#1.offset;cstrcmp_#t~post210#1.base, cstrcmp_#t~post210#1.offset := cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset;cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset := cstrcmp_#t~post210#1.base, cstrcmp_#t~post210#1.offset - 1;havoc cstrcmp_#t~post210#1.base, cstrcmp_#t~post210#1.offset; 6#L367-5true [2023-11-21 21:00:43,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:43,773 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2023-11-21 21:00:43,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:43,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791202663] [2023-11-21 21:00:43,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:43,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:43,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:44,039 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:44,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:44,042 INFO L85 PathProgramCache]: Analyzing trace with hash 49755, now seen corresponding path program 1 times [2023-11-21 21:00:44,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:44,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092942524] [2023-11-21 21:00:44,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:44,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:44,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:44,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:44,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:44,079 INFO L85 PathProgramCache]: Analyzing trace with hash 180429558, now seen corresponding path program 1 times [2023-11-21 21:00:44,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:44,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785625308] [2023-11-21 21:00:44,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:44,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:44,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:44,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:45,213 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:00:45,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:00:45,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:00:45,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:00:45,215 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 21:00:45,215 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:45,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:00:45,215 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:00:45,215 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcmp_reverse_alloca.i_Iteration1_Lasso [2023-11-21 21:00:45,216 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:00:45,216 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:00:45,252 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 21:00:45,982 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 21:00:45,986 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 21:00:45,988 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 21:00:45,992 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 21:00:45,995 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 21:00:45,999 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 21:00:46,003 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 21:00:46,007 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 21:00:46,011 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 21:00:46,015 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 21:00:46,019 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 21:00:46,023 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 21:00:46,027 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 21:00:46,030 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 21:00:46,033 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 21:00:46,039 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 21:00:46,042 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 21:00:46,045 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 21:00:46,047 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 21:00:46,710 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:00:46,716 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 21:00:46,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:46,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:46,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:46,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 21:00:46,731 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 21:00:46,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:46,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:46,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:46,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:46,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:46,762 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:46,783 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:46,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-21 21:00:46,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:46,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:46,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:46,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 21:00:46,815 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 21:00:46,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:46,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:00:46,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:46,828 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 21:00:46,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:46,831 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-21 21:00:46,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:00:46,841 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:46,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:46,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:46,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:46,865 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:46,872 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 21:00:46,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:46,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:46,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:46,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:46,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:46,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:46,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 21:00:46,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:46,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:46,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:46,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:46,925 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:46,935 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 21:00:46,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:46,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:46,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:46,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:46,952 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:46,952 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:46,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 21:00:46,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:46,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:46,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:46,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:46,994 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:46,998 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 21:00:47,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:47,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:47,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:47,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:47,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 21:00:47,016 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:47,016 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:47,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:47,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:47,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:47,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:47,052 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:47,059 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 21:00:47,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:47,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:47,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:47,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:47,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 21:00:47,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:47,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:47,098 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 21:00:47,124 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2023-11-21 21:00:47,124 INFO L444 ModelExtractionUtils]: 12 out of 22 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-11-21 21:00:47,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:47,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:47,163 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:47,174 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 21:00:47,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 21:00:47,207 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 21:00:47,207 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 21:00:47,208 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcmp_~s2#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc216#1.base)_1) = 2*ULTIMATE.start_cstrcmp_~s2#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc216#1.base)_1 Supporting invariants [] [2023-11-21 21:00:47,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:47,275 INFO L156 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2023-11-21 21:00:47,284 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~s2!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-21 21:00:47,286 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[#t~malloc216!base] could not be translated [2023-11-21 21:00:47,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:47,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 21:00:47,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:47,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 21:00:47,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:47,425 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 21:00:47,466 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 21:00:47,468 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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 21:00:47,548 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 40 transitions. Complement of second has 8 states. [2023-11-21 21:00:47,551 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 21:00:47,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:47,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2023-11-21 21:00:47,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-21 21:00:47,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:00:47,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 8 letters. Loop has 3 letters. [2023-11-21 21:00:47,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:00:47,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 5 letters. Loop has 6 letters. [2023-11-21 21:00:47,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:00:47,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2023-11-21 21:00:47,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 21:00:47,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 15 states and 20 transitions. [2023-11-21 21:00:47,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-21 21:00:47,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-21 21:00:47,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2023-11-21 21:00:47,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 21:00:47,568 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-21 21:00:47,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2023-11-21 21:00:47,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-11-21 21:00:47,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 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 21:00:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2023-11-21 21:00:47,595 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-11-21 21:00:47,595 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-11-21 21:00:47,596 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 21:00:47,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2023-11-21 21:00:47,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 21:00:47,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:47,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:47,598 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-21 21:00:47,598 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:00:47,598 INFO L748 eck$LassoCheckResult]: Stem: 145#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 146#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet213#1, main_#t~nondet214#1, main_#t~malloc215#1.base, main_#t~malloc215#1.offset, main_#t~malloc216#1.base, main_#t~malloc216#1.offset, main_#t~ret217#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet213#1;main_~length1~0#1 := main_#t~nondet213#1;havoc main_#t~nondet213#1;havoc main_#t~nondet214#1;main_~length2~0#1 := main_#t~nondet214#1;havoc main_#t~nondet214#1; 143#L378 assume !(main_~length1~0#1 < 1); 144#L378-2 assume !(main_~length2~0#1 < 1); 150#L381-1 call main_#t~malloc215#1.base, main_#t~malloc215#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc215#1.base, main_#t~malloc215#1.offset;call main_#t~malloc216#1.base, main_#t~malloc216#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc216#1.base, main_#t~malloc216#1.offset;call write~int#0(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, 1);call write~int#1(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, 1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1);assume { :begin_inline_cstrcmp } true;cstrcmp_#in~s1#1.base, cstrcmp_#in~s1#1.offset, cstrcmp_#in~s2#1.base, cstrcmp_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcmp_#res#1;havoc cstrcmp_#t~post209#1.base, cstrcmp_#t~post209#1.offset, cstrcmp_#t~post210#1.base, cstrcmp_#t~post210#1.offset, cstrcmp_#t~mem205#1, cstrcmp_#t~mem206#1, cstrcmp_#t~mem207#1, cstrcmp_#t~short208#1, cstrcmp_#t~mem211#1, cstrcmp_#t~mem212#1, cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset, cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset, cstrcmp_~uc1~0#1, cstrcmp_~uc2~0#1;cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset := cstrcmp_#in~s1#1.base, cstrcmp_#in~s1#1.offset;cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset := cstrcmp_#in~s2#1.base, cstrcmp_#in~s2#1.offset;havoc cstrcmp_~uc1~0#1;havoc cstrcmp_~uc2~0#1; 151#L367-5 call cstrcmp_#t~mem205#1 := read~int#0(cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset, 1);cstrcmp_#t~short208#1 := 0 != cstrcmp_#t~mem205#1; 147#L367-1 [2023-11-21 21:00:47,598 INFO L750 eck$LassoCheckResult]: Loop: 147#L367-1 assume !cstrcmp_#t~short208#1; 139#L367-3 assume !!cstrcmp_#t~short208#1;havoc cstrcmp_#t~mem205#1;havoc cstrcmp_#t~mem206#1;havoc cstrcmp_#t~mem207#1;havoc cstrcmp_#t~short208#1;cstrcmp_#t~post209#1.base, cstrcmp_#t~post209#1.offset := cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset;cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset := cstrcmp_#t~post209#1.base, cstrcmp_#t~post209#1.offset - 1;havoc cstrcmp_#t~post209#1.base, cstrcmp_#t~post209#1.offset;cstrcmp_#t~post210#1.base, cstrcmp_#t~post210#1.offset := cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset;cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset := cstrcmp_#t~post210#1.base, cstrcmp_#t~post210#1.offset - 1;havoc cstrcmp_#t~post210#1.base, cstrcmp_#t~post210#1.offset; 140#L367-5 call cstrcmp_#t~mem205#1 := read~int#0(cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset, 1);cstrcmp_#t~short208#1 := 0 != cstrcmp_#t~mem205#1; 147#L367-1 [2023-11-21 21:00:47,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:47,599 INFO L85 PathProgramCache]: Analyzing trace with hash 889572238, now seen corresponding path program 1 times [2023-11-21 21:00:47,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:47,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637811006] [2023-11-21 21:00:47,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:47,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:47,632 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:47,660 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:47,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:47,661 INFO L85 PathProgramCache]: Analyzing trace with hash 54797, now seen corresponding path program 1 times [2023-11-21 21:00:47,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:47,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399335973] [2023-11-21 21:00:47,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:47,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:47,697 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 21:00:47,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:47,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399335973] [2023-11-21 21:00:47,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399335973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:47,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:47,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:00:47,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692195386] [2023-11-21 21:00:47,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:47,702 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-21 21:00:47,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:47,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:47,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:47,706 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 21:00:47,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:47,719 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2023-11-21 21:00:47,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2023-11-21 21:00:47,720 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 21:00:47,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-11-21 21:00:47,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-21 21:00:47,720 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-21 21:00:47,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-21 21:00:47,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:47,721 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:00:47,721 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:00:47,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:47,722 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:00:47,723 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 21:00:47,723 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-21 21:00:47,723 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 21:00:47,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-21 21:00:47,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 09:00:47 BoogieIcfgContainer [2023-11-21 21:00:47,731 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 21:00:47,732 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:00:47,732 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:00:47,732 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:00:47,733 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:43" (3/4) ... [2023-11-21 21:00:47,735 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 21:00:47,736 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:00:47,737 INFO L158 Benchmark]: Toolchain (without parser) took 5119.81ms. Allocated memory was 127.9MB in the beginning and 180.4MB in the end (delta: 52.4MB). Free memory was 81.2MB in the beginning and 73.6MB in the end (delta: 7.6MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,738 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:00:47,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.36ms. Allocated memory is still 127.9MB. Free memory was 80.8MB in the beginning and 62.7MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.13ms. Allocated memory is still 127.9MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,739 INFO L158 Benchmark]: Boogie Preprocessor took 40.94ms. Allocated memory is still 127.9MB. Free memory was 60.6MB in the beginning and 58.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,740 INFO L158 Benchmark]: RCFGBuilder took 402.26ms. Allocated memory was 127.9MB in the beginning and 180.4MB in the end (delta: 52.4MB). Free memory was 58.5MB in the beginning and 143.2MB in the end (delta: -84.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,741 INFO L158 Benchmark]: BuchiAutomizer took 4103.25ms. Allocated memory is still 180.4MB. Free memory was 142.1MB in the beginning and 74.6MB in the end (delta: 67.5MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2023-11-21 21:00:47,741 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 180.4MB. Free memory was 74.6MB in the beginning and 73.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:00:47,744 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.36ms. Allocated memory is still 127.9MB. Free memory was 80.8MB in the beginning and 62.7MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.13ms. Allocated memory is still 127.9MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.94ms. Allocated memory is still 127.9MB. Free memory was 60.6MB in the beginning and 58.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.26ms. Allocated memory was 127.9MB in the beginning and 180.4MB in the end (delta: 52.4MB). Free memory was 58.5MB in the beginning and 143.2MB in the end (delta: -84.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 4103.25ms. Allocated memory is still 180.4MB. Free memory was 142.1MB in the beginning and 74.6MB in the end (delta: 67.5MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 180.4MB. Free memory was 74.6MB in the beginning and 73.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~s2!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[#t~malloc216!base] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function null and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 20 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital204 mio100 ax100 hnf100 lsp97 ukn92 mio100 lsp26 div172 bol100 ite100 ukn100 eq162 hnf92 smp71 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 66ms VariablesStem: 9 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-21 21:00:47,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-21 21:00:47,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4693577d-f098-4945-ac80-e9d7bbc44822/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE