./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 4fc63b2a 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_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/array17_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU --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 0.2.5-dev-4fc63b2 [2024-10-31 22:06:03,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:03,174 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:06:03,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:03,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:03,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:03,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:03,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:03,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:06:03,238 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:06:03,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:03,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:03,241 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:03,241 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:06:03,243 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:06:03,244 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:06:03,244 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:06:03,245 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:06:03,245 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:06:03,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:03,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:06:03,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:03,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:03,251 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:06:03,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:06:03,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:06:03,252 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:03,252 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:06:03,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:06:03,253 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:06:03,253 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:03,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:03,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:03,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:03,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:03,258 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:06:03,259 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_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c64c4370fd8b6e918e28e5e9f3a24e52a6875ae7268f4c7e3f97f19ee293047c [2024-10-31 22:06:03,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:03,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:03,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:03,627 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:03,628 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:03,629 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-15/array17_alloca.i Unable to find full path for "g++" [2024-10-31 22:06:05,699 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:06,020 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:06,021 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/sv-benchmarks/c/termination-15/array17_alloca.i [2024-10-31 22:06:06,036 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/data/71b29e4cd/38bc249a19c64c73a0d29b7eb9838413/FLAG3313afe8f [2024-10-31 22:06:06,055 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/data/71b29e4cd/38bc249a19c64c73a0d29b7eb9838413 [2024-10-31 22:06:06,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:06,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:06,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:06,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:06,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:06,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26c21091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06, skipping insertion in model container [2024-10-31 22:06:06,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:06,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:06,620 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:06,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:06,752 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:06,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06 WrapperNode [2024-10-31 22:06:06,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:06,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:06,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:06,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:06,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,816 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2024-10-31 22:06:06,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:06,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:06,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:06,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:06,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,839 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,871 INFO L175 MemorySlicer]: Split 3 memory accesses to 1 slices as follows [3]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 1 writes are split as follows [1]. [2024-10-31 22:06:06,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,893 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,899 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:06,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:06,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:06,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:06,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (1/1) ... [2024-10-31 22:06:06,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:06,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:06,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:06,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:06:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:06:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:06:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:06:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:07,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:07,106 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:07,109 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:07,305 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-31 22:06:07,305 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:07,323 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:07,324 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:06:07,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:07 BoogieIcfgContainer [2024-10-31 22:06:07,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:07,326 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:06:07,326 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:06:07,332 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:06:07,333 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:06:07,355 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:06:06" (1/3) ... [2024-10-31 22:06:07,356 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56f01cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:06:07, skipping insertion in model container [2024-10-31 22:06:07,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:06:07,357 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:06" (2/3) ... [2024-10-31 22:06:07,357 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56f01cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:06:07, skipping insertion in model container [2024-10-31 22:06:07,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:06:07,360 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:07" (3/3) ... [2024-10-31 22:06:07,367 INFO L332 chiAutomizerObserver]: Analyzing ICFG array17_alloca.i [2024-10-31 22:06:07,452 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:06:07,453 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:06:07,453 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:06:07,453 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:06:07,454 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:06:07,454 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:06:07,454 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:06:07,454 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:06:07,460 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) [2024-10-31 22:06:07,484 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-10-31 22:06:07,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:06:07,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:06:07,492 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:06:07,493 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:06:07,493 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:06:07,494 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) [2024-10-31 22:06:07,495 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-10-31 22:06:07,496 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:06:07,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:06:07,497 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:06:07,497 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:06:07,508 INFO L745 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 13#L367true assume !(main_~length~0#1 < 1); 10#L367-2true assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 14#L371true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);havoc main_#t~nondet207#1;main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 16#L373true assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 3#L375-3true [2024-10-31 22:06:07,508 INFO L747 eck$LassoCheckResult]: Loop: 3#L375-3true assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 8#L375-2true main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 3#L375-3true [2024-10-31 22:06:07,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:07,517 INFO L85 PathProgramCache]: Analyzing trace with hash 889572334, now seen corresponding path program 1 times [2024-10-31 22:06:07,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:07,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893241168] [2024-10-31 22:06:07,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:07,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:07,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:07,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:07,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:07,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 1 times [2024-10-31 22:06:07,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:07,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641082128] [2024-10-31 22:06:07,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:07,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:07,759 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:07,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:07,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:07,779 INFO L85 PathProgramCache]: Analyzing trace with hash 180522064, now seen corresponding path program 1 times [2024-10-31 22:06:07,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:07,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919762075] [2024-10-31 22:06:07,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:07,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:07,836 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:07,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:08,447 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:06:08,448 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:06:08,448 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:06:08,448 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:06:08,449 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:06:08,449 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:08,449 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:06:08,449 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:06:08,449 INFO L132 ssoRankerPreferences]: Filename of dumped script: array17_alloca.i_Iteration1_Lasso [2024-10-31 22:06:08,450 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:06:08,450 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:06:08,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:08,497 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:08,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:08,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:08,524 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:08,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:08,532 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:08,537 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:08,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:08,546 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:08,551 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:08,556 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:09,258 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:06:09,264 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:06:09,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:06:09,275 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 [2024-10-31 22:06:09,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:09,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:09,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:09,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:09,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:09,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:09,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:09,302 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:09,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:09,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,323 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:06:09,326 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 [2024-10-31 22:06:09,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:09,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:09,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:09,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:09,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:09,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:09,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:09,347 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:09,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 22:06:09,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,368 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:06:09,378 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 [2024-10-31 22:06:09,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:09,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:09,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:09,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:09,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:09,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:09,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:09,396 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:09,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:06:09,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,420 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:06:09,424 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 [2024-10-31 22:06:09,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:09,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:09,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:09,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:09,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:09,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:09,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:09,444 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:09,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:09,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,467 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:06:09,470 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 [2024-10-31 22:06:09,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:09,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:09,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:09,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:09,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:09,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:09,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:09,492 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:09,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 22:06:09,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,516 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:06:09,520 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 [2024-10-31 22:06:09,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:09,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:09,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:09,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:09,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:09,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:09,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:09,543 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:09,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:09,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,568 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:06:09,573 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 [2024-10-31 22:06:09,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:09,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:09,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:09,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:09,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:09,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:09,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:09,595 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:09,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 22:06:09,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,621 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:06:09,623 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 [2024-10-31 22:06:09,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:09,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:09,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:09,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:09,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:09,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:09,640 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:09,642 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:09,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:06:09,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,674 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:06:09,676 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 [2024-10-31 22:06:09,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:09,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:09,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:09,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:09,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:09,692 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:09,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:09,697 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:09,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:06:09,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,721 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:06:09,724 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 [2024-10-31 22:06:09,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:09,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:09,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:09,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:09,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:09,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:09,743 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:09,747 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:09,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 22:06:09,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,771 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:06:09,775 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 [2024-10-31 22:06:09,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:09,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:09,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:09,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:09,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:09,793 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:09,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:09,797 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:09,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:06:09,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,819 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:06:09,822 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 [2024-10-31 22:06:09,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:09,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:09,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:09,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:09,848 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:06:09,848 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:06:09,866 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:06:09,902 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2024-10-31 22:06:09,903 INFO L444 ModelExtractionUtils]: 1 out of 19 variables were initially zero. Simplification set additionally 14 variables to zero. [2024-10-31 22:06:09,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:09,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:09,908 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:09,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:06:09,911 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:06:09,933 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-31 22:06:09,933 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:06:09,934 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0#1.offset, v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~arr~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1 - 4*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 22:06:09,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:06:09,980 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2024-10-31 22:06:09,997 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-10-31 22:06:09,998 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-10-31 22:06:09,999 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~arr~0!offset [2024-10-31 22:06:10,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:10,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:06:10,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:10,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:06:10,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:10,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:10,211 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 [2024-10-31 22:06:10,214 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) [2024-10-31 22:06:10,282 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 27 states and 39 transitions. Complement of second has 6 states. [2024-10-31 22:06:10,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:06:10,290 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) [2024-10-31 22:06:10,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2024-10-31 22:06:10,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-31 22:06:10,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:06:10,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 8 letters. Loop has 2 letters. [2024-10-31 22:06:10,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:06:10,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-31 22:06:10,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:06:10,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 39 transitions. [2024-10-31 22:06:10,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:10,306 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 12 states and 16 transitions. [2024-10-31 22:06:10,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-31 22:06:10,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-31 22:06:10,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2024-10-31 22:06:10,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:06:10,311 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-10-31 22:06:10,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2024-10-31 22:06:10,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-31 22:06:10,343 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) [2024-10-31 22:06:10,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2024-10-31 22:06:10,345 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-10-31 22:06:10,346 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-10-31 22:06:10,346 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:06:10,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2024-10-31 22:06:10,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:10,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:06:10,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:06:10,350 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:10,350 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:06:10,350 INFO L745 eck$LassoCheckResult]: Stem: 110#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 111#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~post208#1, main_#t~post209#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; 112#L367 assume !(main_~length~0#1 < 1); 104#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; 105#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; 113#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 106#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 107#L375-4 main_~j~0#1 := 1; 102#L380-2 [2024-10-31 22:06:10,351 INFO L747 eck$LassoCheckResult]: Loop: 102#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); 103#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; 102#L380-2 [2024-10-31 22:06:10,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:10,353 INFO L85 PathProgramCache]: Analyzing trace with hash 180522006, now seen corresponding path program 1 times [2024-10-31 22:06:10,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:10,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22270420] [2024-10-31 22:06:10,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:10,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:10,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:10,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22270420] [2024-10-31 22:06:10,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22270420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:10,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:10,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:06:10,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172497525] [2024-10-31 22:06:10,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:10,580 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:06:10,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:10,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 1 times [2024-10-31 22:06:10,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:10,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309433127] [2024-10-31 22:06:10,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:10,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:10,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:10,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:10,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:10,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:06:10,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:06:10,747 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) [2024-10-31 22:06:10,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:10,790 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2024-10-31 22:06:10,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2024-10-31 22:06:10,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:10,792 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2024-10-31 22:06:10,792 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-10-31 22:06:10,792 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-31 22:06:10,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2024-10-31 22:06:10,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:06:10,793 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-10-31 22:06:10,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2024-10-31 22:06:10,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-10-31 22:06:10,794 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) [2024-10-31 22:06:10,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2024-10-31 22:06:10,795 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-31 22:06:10,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:06:10,796 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-31 22:06:10,796 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:06:10,797 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2024-10-31 22:06:10,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:10,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:06:10,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:06:10,798 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:10,798 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:06:10,799 INFO L745 eck$LassoCheckResult]: Stem: 142#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 143#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~post208#1, main_#t~post209#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; 144#L367 assume !(main_~length~0#1 < 1); 140#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; 141#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; 145#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 136#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 137#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 138#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 139#L375-4 main_~j~0#1 := 1; 134#L380-2 [2024-10-31 22:06:10,799 INFO L747 eck$LassoCheckResult]: Loop: 134#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); 135#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; 134#L380-2 [2024-10-31 22:06:10,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:10,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1683012600, now seen corresponding path program 1 times [2024-10-31 22:06:10,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:10,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590659586] [2024-10-31 22:06:10,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:10,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:10,841 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:10,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:10,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:10,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 2 times [2024-10-31 22:06:10,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:10,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664124136] [2024-10-31 22:06:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:10,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:10,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:10,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:10,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:10,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1827560517, now seen corresponding path program 1 times [2024-10-31 22:06:10,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:10,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518206651] [2024-10-31 22:06:10,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:10,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:11,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:11,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518206651] [2024-10-31 22:06:11,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518206651] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:11,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016987047] [2024-10-31 22:06:11,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:11,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:11,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:11,142 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:11,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-31 22:06:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:11,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:06:11,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:11,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:11,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:11,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016987047] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:11,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:11,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2024-10-31 22:06:11,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666469398] [2024-10-31 22:06:11,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:11,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:11,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:11,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:11,425 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) [2024-10-31 22:06:11,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:11,521 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2024-10-31 22:06:11,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2024-10-31 22:06:11,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:11,522 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 15 states and 17 transitions. [2024-10-31 22:06:11,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-10-31 22:06:11,523 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-31 22:06:11,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2024-10-31 22:06:11,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:06:11,523 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-10-31 22:06:11,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2024-10-31 22:06:11,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2024-10-31 22:06:11,525 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) [2024-10-31 22:06:11,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2024-10-31 22:06:11,526 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-10-31 22:06:11,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:06:11,527 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-10-31 22:06:11,527 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:06:11,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 16 transitions. [2024-10-31 22:06:11,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:11,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:06:11,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:06:11,529 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:11,529 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:06:11,529 INFO L745 eck$LassoCheckResult]: Stem: 262#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 263#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~post208#1, main_#t~post209#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; 264#L367 assume !(main_~length~0#1 < 1); 256#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; 257#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; 265#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 258#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 259#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 260#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 261#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 267#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 266#L375-4 main_~j~0#1 := 1; 254#L380-2 [2024-10-31 22:06:11,529 INFO L747 eck$LassoCheckResult]: Loop: 254#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); 255#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; 254#L380-2 [2024-10-31 22:06:11,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:11,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1827505318, now seen corresponding path program 2 times [2024-10-31 22:06:11,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:11,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216105358] [2024-10-31 22:06:11,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:11,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:11,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:11,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:11,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:11,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 3 times [2024-10-31 22:06:11,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:11,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906913154] [2024-10-31 22:06:11,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:11,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:11,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:11,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:11,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:11,571 INFO L85 PathProgramCache]: Analyzing trace with hash 409014941, now seen corresponding path program 2 times [2024-10-31 22:06:11,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:11,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555054532] [2024-10-31 22:06:11,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:11,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:11,595 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:11,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:11,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:06:12,110 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:06:12,110 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:06:12,110 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:06:12,111 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:06:12,111 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:06:12,111 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:12,111 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:06:12,111 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:06:12,111 INFO L132 ssoRankerPreferences]: Filename of dumped script: array17_alloca.i_Iteration4_Lasso [2024-10-31 22:06:12,111 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:06:12,111 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:06:12,114 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:12,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:12,123 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:12,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:12,128 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:12,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:12,134 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:12,136 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:12,139 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:12,142 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:12,437 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:12,442 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:06:12,763 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:06:12,764 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:06:12,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:12,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:12,767 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:12,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:06:12,770 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 [2024-10-31 22:06:12,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:12,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:12,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:12,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:12,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:12,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:12,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:12,789 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:12,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:06:12,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:12,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:12,810 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:12,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:06:12,813 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 [2024-10-31 22:06:12,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:12,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:12,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:12,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:12,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:12,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:12,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:12,835 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:12,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:12,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:12,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:12,857 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:12,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:06:12,862 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 [2024-10-31 22:06:12,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:12,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:12,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:12,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:12,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:12,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:12,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:12,883 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:12,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:12,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:12,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:12,905 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:12,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:06:12,908 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 [2024-10-31 22:06:12,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:12,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:12,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:12,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:12,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:12,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:12,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:12,926 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:12,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 22:06:12,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:12,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:12,948 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:12,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:06:12,955 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 [2024-10-31 22:06:12,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:12,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:12,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:12,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:12,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:12,977 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:12,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:12,981 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:13,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:13,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:13,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:13,016 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:13,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:06:13,019 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 [2024-10-31 22:06:13,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:13,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:13,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:13,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:13,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:13,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:13,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:13,038 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:13,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:06:13,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:13,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:13,059 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:13,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:06:13,062 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 [2024-10-31 22:06:13,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:13,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:13,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:13,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:13,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:13,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:13,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:13,080 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:13,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:13,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:13,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:13,101 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:13,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:06:13,104 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 [2024-10-31 22:06:13,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:13,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:13,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:13,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:13,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:13,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:13,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:13,123 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:13,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-10-31 22:06:13,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:13,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:13,144 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:13,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:06:13,147 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 [2024-10-31 22:06:13,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:13,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:06:13,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:13,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:13,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:13,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:06:13,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:06:13,165 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:13,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:13,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:13,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:13,186 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:13,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:06:13,206 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 [2024-10-31 22:06:13,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:13,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:13,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:13,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:13,228 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:06:13,228 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:06:13,237 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:13,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:13,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:13,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:13,259 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:13,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:06:13,261 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 [2024-10-31 22:06:13,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:13,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:13,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:13,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:13,279 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:06:13,279 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:06:13,285 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:06:13,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:13,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:13,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:13,305 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:13,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:06:13,308 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 [2024-10-31 22:06:13,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:06:13,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:06:13,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:06:13,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:06:13,331 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:06:13,331 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:06:13,346 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:06:13,383 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2024-10-31 22:06:13,384 INFO L444 ModelExtractionUtils]: 0 out of 19 variables were initially zero. Simplification set additionally 15 variables to zero. [2024-10-31 22:06:13,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:06:13,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:13,386 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:13,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:06:13,389 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:06:13,408 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-10-31 22:06:13,408 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:06:13,409 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, v_rep(select #length ULTIMATE.start_main_#t~malloc206#1.base)_2) = -2*ULTIMATE.start_main_~j~0#1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc206#1.base)_2 Supporting invariants [1*ULTIMATE.start_main_~arr~0#1.offset >= 0] [2024-10-31 22:06:13,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:13,448 INFO L156 tatePredicateManager]: 4 out of 6 supporting invariants were superfluous and have been removed [2024-10-31 22:06:13,456 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-10-31 22:06:13,456 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-10-31 22:06:13,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:13,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:06:13,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:13,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:06:13,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:13,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:13,706 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-10-31 22:06:13,707 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 16 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2024-10-31 22:06:13,787 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 16 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 6 states. [2024-10-31 22:06:13,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:06:13,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2024-10-31 22:06:13,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-10-31 22:06:13,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2024-10-31 22:06:13,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:06:13,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2024-10-31 22:06:13,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:06:13,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 12 letters. Loop has 4 letters. [2024-10-31 22:06:13,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:06:13,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2024-10-31 22:06:13,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:13,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 22 transitions. [2024-10-31 22:06:13,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-31 22:06:13,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-31 22:06:13,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2024-10-31 22:06:13,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:06:13,797 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-10-31 22:06:13,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2024-10-31 22:06:13,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-10-31 22:06:13,798 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) [2024-10-31 22:06:13,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2024-10-31 22:06:13,799 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-10-31 22:06:13,799 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-10-31 22:06:13,799 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:06:13,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. [2024-10-31 22:06:13,799 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:13,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:06:13,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:06:13,800 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:13,800 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:06:13,800 INFO L745 eck$LassoCheckResult]: Stem: 392#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 393#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~post208#1, main_#t~post209#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; 390#L367 assume !(main_~length~0#1 < 1); 384#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; 385#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; 391#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 386#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 387#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 388#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 389#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 396#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 394#L375-4 main_~j~0#1 := 1; 395#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); 383#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; 379#L380-2 [2024-10-31 22:06:13,801 INFO L747 eck$LassoCheckResult]: Loop: 379#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); 380#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; 379#L380-2 [2024-10-31 22:06:13,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:13,801 INFO L85 PathProgramCache]: Analyzing trace with hash 409014943, now seen corresponding path program 1 times [2024-10-31 22:06:13,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:13,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461073423] [2024-10-31 22:06:13,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:13,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:14,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:14,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461073423] [2024-10-31 22:06:14,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461073423] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:14,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764655929] [2024-10-31 22:06:14,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:14,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:14,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:14,319 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:14,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-31 22:06:14,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-10-31 22:06:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:14,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:06:14,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:14,458 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 [2024-10-31 22:06:14,512 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 [2024-10-31 22:06:14,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:06:14,582 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 [2024-10-31 22:06:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:14,601 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:14,895 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 [2024-10-31 22:06:14,909 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:06:14,910 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 [2024-10-31 22:06:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:14,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764655929] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:14,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:14,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 18 [2024-10-31 22:06:14,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755299683] [2024-10-31 22:06:14,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:14,952 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:06:14,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:14,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 4 times [2024-10-31 22:06:14,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:14,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743261049] [2024-10-31 22:06:14,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:14,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:14,957 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:14,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:15,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:15,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-31 22:06:15,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:06:15,065 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) [2024-10-31 22:06:15,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:15,402 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2024-10-31 22:06:15,403 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2024-10-31 22:06:15,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:15,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 21 states and 25 transitions. [2024-10-31 22:06:15,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-31 22:06:15,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-31 22:06:15,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2024-10-31 22:06:15,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:06:15,404 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-10-31 22:06:15,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2024-10-31 22:06:15,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2024-10-31 22:06:15,406 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) [2024-10-31 22:06:15,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2024-10-31 22:06:15,407 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-10-31 22:06:15,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:06:15,408 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-10-31 22:06:15,408 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:06:15,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2024-10-31 22:06:15,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:15,409 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:06:15,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:06:15,410 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:15,410 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:06:15,410 INFO L745 eck$LassoCheckResult]: Stem: 538#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 539#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~post208#1, main_#t~post209#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; 540#L367 assume !(main_~length~0#1 < 1); 535#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; 536#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; 541#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 531#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 532#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 533#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 534#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 543#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 542#L375-4 main_~j~0#1 := 1; 527#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); 528#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; 529#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); 530#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; 537#L380-2 [2024-10-31 22:06:15,410 INFO L747 eck$LassoCheckResult]: Loop: 537#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~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 537#L380-2 [2024-10-31 22:06:15,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:15,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2073631454, now seen corresponding path program 1 times [2024-10-31 22:06:15,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:15,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034314708] [2024-10-31 22:06:15,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:15,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:15,518 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:15,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:15,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034314708] [2024-10-31 22:06:15,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034314708] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:15,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023252404] [2024-10-31 22:06:15,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:15,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:15,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:15,521 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:15,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-31 22:06:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:15,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:06:15,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:15,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:15,727 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:15,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023252404] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:15,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:15,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-10-31 22:06:15,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505956888] [2024-10-31 22:06:15,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:15,728 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:06:15,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:15,728 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 5 times [2024-10-31 22:06:15,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:15,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249699872] [2024-10-31 22:06:15,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:15,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:15,733 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:15,737 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:15,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:15,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:06:15,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:06:15,843 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) [2024-10-31 22:06:15,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:15,911 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2024-10-31 22:06:15,911 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 28 transitions. [2024-10-31 22:06:15,912 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:15,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 21 states and 24 transitions. [2024-10-31 22:06:15,913 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-31 22:06:15,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-31 22:06:15,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 24 transitions. [2024-10-31 22:06:15,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:06:15,914 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-10-31 22:06:15,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 24 transitions. [2024-10-31 22:06:15,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2024-10-31 22:06:15,915 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) [2024-10-31 22:06:15,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-10-31 22:06:15,916 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-10-31 22:06:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:06:15,918 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-10-31 22:06:15,918 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:06:15,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2024-10-31 22:06:15,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:15,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:06:15,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:06:15,920 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:15,920 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:06:15,920 INFO L745 eck$LassoCheckResult]: Stem: 686#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 687#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~post208#1, main_#t~post209#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; 688#L367 assume !(main_~length~0#1 < 1); 680#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; 681#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; 689#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 682#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 683#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 684#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 685#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 694#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 693#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 692#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 690#L375-4 main_~j~0#1 := 1; 691#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); 678#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; 677#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); 679#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; 675#L380-2 [2024-10-31 22:06:15,920 INFO L747 eck$LassoCheckResult]: Loop: 675#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); 676#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; 675#L380-2 [2024-10-31 22:06:15,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:15,921 INFO L85 PathProgramCache]: Analyzing trace with hash -457174268, now seen corresponding path program 2 times [2024-10-31 22:06:15,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:15,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249592536] [2024-10-31 22:06:15,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:15,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:16,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:16,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249592536] [2024-10-31 22:06:16,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249592536] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:16,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513216073] [2024-10-31 22:06:16,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:06:16,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:16,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:16,456 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:16,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-10-31 22:06:16,527 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:06:16,528 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:06:16,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-31 22:06:16,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:16,630 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 [2024-10-31 22:06:16,713 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 [2024-10-31 22:06:16,907 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:06:16,907 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 [2024-10-31 22:06:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:16,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:17,186 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 [2024-10-31 22:06:17,195 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:06:17,196 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 [2024-10-31 22:06:17,221 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:17,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513216073] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:17,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:17,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10] total 23 [2024-10-31 22:06:17,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429846404] [2024-10-31 22:06:17,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:17,222 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:06:17,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:17,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 6 times [2024-10-31 22:06:17,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:17,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543907258] [2024-10-31 22:06:17,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:17,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:17,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:17,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:17,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:17,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-31 22:06:17,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2024-10-31 22:06:17,325 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) [2024-10-31 22:06:17,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:17,757 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2024-10-31 22:06:17,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 45 transitions. [2024-10-31 22:06:17,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-10-31 22:06:17,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 36 states and 44 transitions. [2024-10-31 22:06:17,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-10-31 22:06:17,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-10-31 22:06:17,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 44 transitions. [2024-10-31 22:06:17,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:06:17,761 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 44 transitions. [2024-10-31 22:06:17,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 44 transitions. [2024-10-31 22:06:17,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2024-10-31 22:06:17,764 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) [2024-10-31 22:06:17,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2024-10-31 22:06:17,765 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 36 transitions. [2024-10-31 22:06:17,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:06:17,766 INFO L425 stractBuchiCegarLoop]: Abstraction has 30 states and 36 transitions. [2024-10-31 22:06:17,766 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 22:06:17,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 36 transitions. [2024-10-31 22:06:17,766 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:17,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:06:17,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:06:17,767 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:17,767 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:06:17,768 INFO L745 eck$LassoCheckResult]: Stem: 881#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 882#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~post208#1, main_#t~post209#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; 883#L367 assume !(main_~length~0#1 < 1); 877#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; 878#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; 884#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 873#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 874#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 887#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 893#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 875#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 876#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 891#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 885#L375-4 main_~j~0#1 := 1; 886#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); 894#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; 871#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); 872#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; 880#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); 879#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; 869#L380-2 [2024-10-31 22:06:17,768 INFO L747 eck$LassoCheckResult]: Loop: 869#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); 870#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; 869#L380-2 [2024-10-31 22:06:17,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:17,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1257807801, now seen corresponding path program 3 times [2024-10-31 22:06:17,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:17,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582688255] [2024-10-31 22:06:17,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:17,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:17,918 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:17,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:17,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582688255] [2024-10-31 22:06:17,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582688255] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:17,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160076754] [2024-10-31 22:06:17,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:06:17,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:17,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:17,921 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:17,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-10-31 22:06:17,998 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-31 22:06:17,998 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:06:17,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:06:18,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:18,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:18,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160076754] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:18,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:18,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 14 [2024-10-31 22:06:18,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080314382] [2024-10-31 22:06:18,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:18,177 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:06:18,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:18,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 7 times [2024-10-31 22:06:18,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:18,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48040578] [2024-10-31 22:06:18,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:18,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:18,185 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:18,192 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:18,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:18,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:06:18,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:06:18,282 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) [2024-10-31 22:06:18,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:18,357 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2024-10-31 22:06:18,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2024-10-31 22:06:18,357 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:18,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 30 states and 35 transitions. [2024-10-31 22:06:18,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-10-31 22:06:18,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-31 22:06:18,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 35 transitions. [2024-10-31 22:06:18,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:06:18,360 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 35 transitions. [2024-10-31 22:06:18,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 35 transitions. [2024-10-31 22:06:18,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-31 22:06:18,362 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) [2024-10-31 22:06:18,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2024-10-31 22:06:18,363 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 35 transitions. [2024-10-31 22:06:18,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:06:18,365 INFO L425 stractBuchiCegarLoop]: Abstraction has 30 states and 35 transitions. [2024-10-31 22:06:18,366 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-31 22:06:18,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 35 transitions. [2024-10-31 22:06:18,367 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:06:18,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:06:18,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:06:18,368 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:18,368 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:06:18,368 INFO L745 eck$LassoCheckResult]: Stem: 1078#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1079#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~post208#1, main_#t~post209#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; 1080#L367 assume !(main_~length~0#1 < 1); 1070#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; 1071#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; 1081#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 1072#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 1073#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1074#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 1075#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1084#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 1095#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1094#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post208#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post208#1;call write~int#0(main_#t~post208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post208#1; 1093#L375-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1087#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 1088#L375-4 main_~j~0#1 := 1; 1085#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); 1086#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; 1068#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); 1069#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; 1077#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); 1076#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; 1066#L380-2 [2024-10-31 22:06:18,368 INFO L747 eck$LassoCheckResult]: Loop: 1066#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); 1067#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; 1066#L380-2 [2024-10-31 22:06:18,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:18,368 INFO L85 PathProgramCache]: Analyzing trace with hash -948777687, now seen corresponding path program 4 times [2024-10-31 22:06:18,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:18,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658720363] [2024-10-31 22:06:18,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:18,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:18,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:18,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658720363] [2024-10-31 22:06:18,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658720363] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:18,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358625450] [2024-10-31 22:06:18,992 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 22:06:18,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:18,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:18,995 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:18,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198fd683-d7f4-4cb5-b45f-39bfc1e36990/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-10-31 22:06:19,077 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 22:06:19,077 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:06:19,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-31 22:06:19,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:19,150 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 [2024-10-31 22:06:19,252 INFO L349 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2024-10-31 22:06:19,252 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 [2024-10-31 22:06:19,830 INFO L349 Elim1Store]: treesize reduction 38, result has 15.6 percent of original size [2024-10-31 22:06:19,831 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 [2024-10-31 22:06:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:19,838 INFO L311 TraceCheckSpWp]: Computing backward predicates...