./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1 --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 b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:50:22,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:50:22,673 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-12-02 08:50:22,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:50:22,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:50:22,699 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:50:22,700 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:50:22,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:50:22,701 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:50:22,701 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:50:22,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:50:22,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:50:22,701 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:50:22,701 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 08:50:22,701 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 08:50:22,701 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 08:50:22,702 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 08:50:22,702 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 08:50:22,702 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 08:50:22,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:50:22,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 08:50:22,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:50:22,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:50:22,702 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 08:50:22,702 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 08:50:22,702 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 08:50:22,702 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 08:50:22,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:50:22,703 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 08:50:22,703 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:50:22,703 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:50:22,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:50:22,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:50:22,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:50:22,703 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 08:50:22,703 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 08:50:22,704 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1 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 -> b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 [2024-12-02 08:50:22,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:50:22,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:50:22,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:50:22,956 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:50:22,956 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:50:22,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2024-12-02 08:50:25,600 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/data/f95d347a6/b71fcf02cf9d4a8fb581da586fffaf40/FLAG606bd26c3 [2024-12-02 08:50:25,752 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:50:25,753 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2024-12-02 08:50:25,759 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/data/f95d347a6/b71fcf02cf9d4a8fb581da586fffaf40/FLAG606bd26c3 [2024-12-02 08:50:25,773 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/data/f95d347a6/b71fcf02cf9d4a8fb581da586fffaf40 [2024-12-02 08:50:25,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:50:25,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:50:25,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:50:25,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:50:25,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:50:25,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:25,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ec67db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25, skipping insertion in model container [2024-12-02 08:50:25,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:25,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:50:25,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:50:25,933 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:50:25,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:50:25,956 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:50:25,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25 WrapperNode [2024-12-02 08:50:25,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:50:25,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:50:25,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:50:25,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:50:25,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:25,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:25,981 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2024-12-02 08:50:25,981 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:50:25,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:50:25,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:50:25,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:50:25,990 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:25,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:25,991 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:25,996 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 08:50:25,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:25,997 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:25,998 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:25,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:26,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:26,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:26,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:26,005 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:50:26,006 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:50:26,006 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:50:26,006 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:50:26,007 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (1/1) ... [2024-12-02 08:50:26,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:26,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:26,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:26,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 08:50:26,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:50:26,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:50:26,129 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:50:26,131 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:50:26,185 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-02 08:50:26,185 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:50:26,194 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:50:26,195 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 08:50:26,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:50:26 BoogieIcfgContainer [2024-12-02 08:50:26,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:50:26,196 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 08:50:26,196 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 08:50:26,202 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 08:50:26,202 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:50:26,202 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 08:50:25" (1/3) ... [2024-12-02 08:50:26,203 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@763d94d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:50:26, skipping insertion in model container [2024-12-02 08:50:26,203 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:50:26,203 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:25" (2/3) ... [2024-12-02 08:50:26,204 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@763d94d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:50:26, skipping insertion in model container [2024-12-02 08:50:26,204 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:50:26,204 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:50:26" (3/3) ... [2024-12-02 08:50:26,204 INFO L363 chiAutomizerObserver]: Analyzing ICFG b.09-no-inv_assume.c [2024-12-02 08:50:26,242 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 08:50:26,242 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 08:50:26,242 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 08:50:26,242 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 08:50:26,242 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 08:50:26,243 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 08:50:26,243 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 08:50:26,243 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 08:50:26,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) [2024-12-02 08:50:26,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 08:50:26,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:50:26,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:50:26,261 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 08:50:26,262 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 08:50:26,262 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 08:50:26,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) [2024-12-02 08:50:26,263 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 08:50:26,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:50:26,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:50:26,263 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 08:50:26,263 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 08:50:26,268 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0;" "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" [2024-12-02 08:50:26,268 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~x~0#1);" "assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1;" "main_~c~0#1 := 1 + main_~c~0#1;" [2024-12-02 08:50:26,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:26,272 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-12-02 08:50:26,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:50:26,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251015217] [2024-12-02 08:50:26,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:26,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:26,329 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:50:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:26,342 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:50:26,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash 40910, now seen corresponding path program 1 times [2024-12-02 08:50:26,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:50:26,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054420849] [2024-12-02 08:50:26,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:26,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:26,354 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:50:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:26,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:50:26,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:26,361 INFO L85 PathProgramCache]: Analyzing trace with hash 889510797, now seen corresponding path program 1 times [2024-12-02 08:50:26,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:50:26,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141054021] [2024-12-02 08:50:26,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:26,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:26,371 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:50:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:26,377 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:50:26,455 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:50:26,456 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:50:26,456 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:50:26,456 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:50:26,456 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:50:26,456 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:26,456 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:50:26,456 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:50:26,457 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2024-12-02 08:50:26,457 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:50:26,457 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:50:26,469 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:26,483 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:26,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:26,493 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:26,585 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:50:26,586 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:50:26,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:26,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:26,590 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:26,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-12-02 08:50:26,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:26,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:26,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-12-02 08:50:26,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:26,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:26,629 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:26,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-12-02 08:50:26,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:50:26,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:26,788 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 08:50:26,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-12-02 08:50:26,792 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:50:26,792 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:50:26,792 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:50:26,792 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:50:26,792 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 08:50:26,792 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:26,793 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:50:26,793 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:50:26,793 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2024-12-02 08:50:26,793 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:50:26,793 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:50:26,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:26,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:26,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:26,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:26,875 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:50:26,878 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 08:50:26,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:26,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:26,880 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:26,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-12-02 08:50:26,883 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 [2024-12-02 08:50:26,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:50:26,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:50:26,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:50:26,896 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-12-02 08:50:26,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:50:26,902 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-12-02 08:50:26,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:50:26,907 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 08:50:26,912 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 08:50:26,915 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 08:50:26,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:26,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:26,918 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:26,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-12-02 08:50:26,920 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 08:50:26,920 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 08:50:26,921 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 08:50:26,921 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-12-02 08:50:26,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-12-02 08:50:26,929 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 08:50:26,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:26,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:50:26,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:26,973 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:50:26,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:27,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:50:27,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-12-02 08:50:27,045 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 [2024-12-02 08:50:27,047 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:27,087 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 32 transitions. Complement of second has 6 states. [2024-12-02 08:50:27,089 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 [2024-12-02 08:50:27,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-12-02 08:50:27,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 3 letters. [2024-12-02 08:50:27,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:50:27,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 3 letters. [2024-12-02 08:50:27,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:50:27,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 6 letters. [2024-12-02 08:50:27,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:50:27,102 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2024-12-02 08:50:27,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 08:50:27,106 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 13 states and 16 transitions. [2024-12-02 08:50:27,106 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-12-02 08:50:27,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-12-02 08:50:27,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2024-12-02 08:50:27,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:50:27,107 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-12-02 08:50:27,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2024-12-02 08:50:27,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2024-12-02 08:50:27,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:27,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-12-02 08:50:27,123 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-12-02 08:50:27,123 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-12-02 08:50:27,123 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 08:50:27,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-12-02 08:50:27,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 08:50:27,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:50:27,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:50:27,123 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-12-02 08:50:27,123 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 08:50:27,124 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0;" "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "assume !(0 == main_~x~0#1);" [2024-12-02 08:50:27,124 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1;" "main_~c~0#1 := 1 + main_~c~0#1;" "assume !(0 == main_~x~0#1);" [2024-12-02 08:50:27,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:27,124 INFO L85 PathProgramCache]: Analyzing trace with hash 925609, now seen corresponding path program 1 times [2024-12-02 08:50:27,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:50:27,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120943959] [2024-12-02 08:50:27,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:27,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:27,128 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:50:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:27,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:50:27,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:27,131 INFO L85 PathProgramCache]: Analyzing trace with hash 48712, now seen corresponding path program 1 times [2024-12-02 08:50:27,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:50:27,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944753490] [2024-12-02 08:50:27,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:27,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:27,134 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:50:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:27,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:50:27,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:27,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1805032864, now seen corresponding path program 1 times [2024-12-02 08:50:27,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:50:27,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170663981] [2024-12-02 08:50:27,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:27,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:27,145 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:50:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:27,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:50:27,185 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:50:27,185 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:50:27,185 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:50:27,185 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:50:27,185 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:50:27,185 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,185 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:50:27,185 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:50:27,185 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Loop [2024-12-02 08:50:27,185 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:50:27,185 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:50:27,187 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,191 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,202 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,205 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,276 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:50:27,276 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:50:27,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,278 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-12-02 08:50:27,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:27,281 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:27,305 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:27,305 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:50:27,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-12-02 08:50:27,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,315 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-12-02 08:50:27,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:27,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:27,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-12-02 08:50:27,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,345 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-12-02 08:50:27,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:50:27,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:27,389 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:27,389 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=1}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-12-02 08:50:27,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-12-02 08:50:27,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,398 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-12-02 08:50:27,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:27,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:27,421 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:27,421 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:50:27,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-12-02 08:50:27,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,431 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-12-02 08:50:27,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:27,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:27,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-12-02 08:50:27,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,452 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-12-02 08:50:27,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:50:27,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:27,483 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:27,483 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=-4}] Lambdas: [1, 5, 1] Nus: [0, 1] [2024-12-02 08:50:27,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-12-02 08:50:27,519 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:50:27,519 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:50:27,519 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:50:27,519 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:50:27,519 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:50:27,519 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,519 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:50:27,519 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:50:27,519 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2024-12-02 08:50:27,519 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:50:27,519 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:50:27,521 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,552 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,626 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:50:27,626 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:50:27,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,628 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-12-02 08:50:27,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:27,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:27,652 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:27,652 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:50:27,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-12-02 08:50:27,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,659 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-12-02 08:50:27,661 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:27,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:27,673 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:27,673 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:50:27,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-12-02 08:50:27,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,683 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-12-02 08:50:27,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:27,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:27,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-12-02 08:50:27,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,704 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-12-02 08:50:27,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:50:27,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:27,796 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 08:50:27,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-12-02 08:50:27,799 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:50:27,799 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:50:27,799 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:50:27,799 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:50:27,799 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 08:50:27,799 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,799 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:50:27,799 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:50:27,799 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2024-12-02 08:50:27,799 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:50:27,799 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:50:27,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,810 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,823 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,829 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:27,904 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:50:27,904 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 08:50:27,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,906 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-12-02 08:50:27,910 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 [2024-12-02 08:50:27,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:50:27,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:50:27,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:50:27,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:50:27,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:50:27,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 08:50:27,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:50:27,924 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 08:50:27,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-12-02 08:50:27,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,930 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-12-02 08:50:27,933 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 [2024-12-02 08:50:27,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:50:27,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:50:27,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:50:27,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:50:27,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:50:27,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 08:50:27,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:50:27,946 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 08:50:27,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-12-02 08:50:27,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,952 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-12-02 08:50:27,955 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 [2024-12-02 08:50:27,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:50:27,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:50:27,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:50:27,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:50:27,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 08:50:27,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 08:50:27,972 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 08:50:27,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-12-02 08:50:27,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:27,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:27,983 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:27,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-12-02 08:50:27,985 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 [2024-12-02 08:50:27,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:50:27,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:50:27,999 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-12-02 08:50:27,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:50:28,009 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-12-02 08:50:28,010 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-12-02 08:50:28,026 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 08:50:28,043 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2024-12-02 08:50:28,043 INFO L444 ModelExtractionUtils]: 7 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2024-12-02 08:50:28,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,045 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-12-02 08:50:28,047 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 08:50:28,061 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-12-02 08:50:28,061 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 08:50:28,061 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [2*ULTIMATE.start_main_~x~0#1 - 1 >= 0] [2024-12-02 08:50:28,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-12-02 08:50:28,070 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-12-02 08:50:28,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:28,094 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:50:28,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:28,109 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:50:28,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:50:28,134 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 [2024-12-02 08:50:28,135 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:28,175 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 22 transitions. Complement of second has 5 states. [2024-12-02 08:50:28,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2024-12-02 08:50:28,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:28,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2024-12-02 08:50:28,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 3 letters. [2024-12-02 08:50:28,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:50:28,177 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 08:50:28,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:28,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:50:28,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:28,223 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:50:28,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:50:28,244 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2024-12-02 08:50:28,244 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:28,273 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 27 transitions. Complement of second has 6 states. [2024-12-02 08:50:28,273 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 [2024-12-02 08:50:28,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:50:28,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-12-02 08:50:28,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 3 letters. [2024-12-02 08:50:28,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:50:28,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 7 letters. Loop has 3 letters. [2024-12-02 08:50:28,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:50:28,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 6 letters. [2024-12-02 08:50:28,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:50:28,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2024-12-02 08:50:28,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 08:50:28,276 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 14 states and 17 transitions. [2024-12-02 08:50:28,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-12-02 08:50:28,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-12-02 08:50:28,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2024-12-02 08:50:28,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:50:28,277 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-12-02 08:50:28,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2024-12-02 08:50:28,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2024-12-02 08:50:28,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-12-02 08:50:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2024-12-02 08:50:28,278 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-12-02 08:50:28,278 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-12-02 08:50:28,278 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 08:50:28,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2024-12-02 08:50:28,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 08:50:28,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:50:28,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:50:28,278 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-12-02 08:50:28,278 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 08:50:28,279 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0;" "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "assume !(0 == main_~x~0#1);" "assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1;" "main_~c~0#1 := 1 + main_~c~0#1;" [2024-12-02 08:50:28,279 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~x~0#1);" "assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1;" "main_~c~0#1 := 1 + main_~c~0#1;" [2024-12-02 08:50:28,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:28,279 INFO L85 PathProgramCache]: Analyzing trace with hash 889510797, now seen corresponding path program 2 times [2024-12-02 08:50:28,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:50:28,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615776766] [2024-12-02 08:50:28,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:28,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:28,284 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:50:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:28,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:50:28,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash 40972, now seen corresponding path program 2 times [2024-12-02 08:50:28,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:50:28,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138095774] [2024-12-02 08:50:28,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:28,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:28,293 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:50:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:28,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:50:28,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:28,298 INFO L85 PathProgramCache]: Analyzing trace with hash -532051712, now seen corresponding path program 1 times [2024-12-02 08:50:28,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:50:28,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804278732] [2024-12-02 08:50:28,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:28,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:28,303 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:50:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:28,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:50:28,338 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:50:28,338 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:50:28,338 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:50:28,339 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:50:28,339 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:50:28,339 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,339 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:50:28,339 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:50:28,339 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Loop [2024-12-02 08:50:28,339 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:50:28,339 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:50:28,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-12-02 08:50:28,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,427 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:50:28,427 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:50:28,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,429 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-12-02 08:50:28,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:28,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:28,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-12-02 08:50:28,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,450 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-12-02 08:50:28,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:50:28,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:28,490 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:28,490 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~y~0#1=-5} Honda state: {ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~y~0#1=-5} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [12, 1, 9] Nus: [0, 0] [2024-12-02 08:50:28,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-12-02 08:50:28,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,497 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-12-02 08:50:28,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:28,499 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:28,517 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:28,517 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:50:28,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-12-02 08:50:28,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,524 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-12-02 08:50:28,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:28,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:28,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-12-02 08:50:28,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,544 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-12-02 08:50:28,546 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:50:28,546 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:28,572 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:28,572 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=-4}] Lambdas: [1, 5, 1] Nus: [0, 1] [2024-12-02 08:50:28,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-12-02 08:50:28,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,579 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-12-02 08:50:28,581 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:28,581 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:28,599 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:28,599 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:50:28,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-12-02 08:50:28,629 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:50:28,629 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:50:28,629 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:50:28,629 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:50:28,629 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:50:28,629 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,629 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:50:28,629 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:50:28,629 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2024-12-02 08:50:28,629 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:50:28,629 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:50:28,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,632 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,636 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,703 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:50:28,703 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:50:28,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,705 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-12-02 08:50:28,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:28,707 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:28,722 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:28,722 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:50:28,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-12-02 08:50:28,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,729 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-12-02 08:50:28,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:28,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:28,749 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:28,749 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:50:28,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-12-02 08:50:28,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,756 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-12-02 08:50:28,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:28,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:28,770 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:28,770 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:50:28,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-12-02 08:50:28,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,777 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-12-02 08:50:28,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:28,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:28,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-12-02 08:50:28,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,797 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-12-02 08:50:28,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:50:28,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:28,834 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 08:50:28,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-12-02 08:50:28,837 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:50:28,837 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:50:28,837 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:50:28,837 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:50:28,837 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 08:50:28,837 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,837 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:50:28,837 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:50:28,837 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2024-12-02 08:50:28,838 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:50:28,838 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:50:28,839 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,856 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:28,913 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:50:28,913 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 08:50:28,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,914 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-12-02 08:50:28,917 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 [2024-12-02 08:50:28,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:50:28,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:50:28,928 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-12-02 08:50:28,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:50:28,936 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-12-02 08:50:28,936 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-12-02 08:50:28,957 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 08:50:28,975 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2024-12-02 08:50:28,975 INFO L444 ModelExtractionUtils]: 6 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-12-02 08:50:28,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:28,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:28,977 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:28,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-12-02 08:50:28,979 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 08:50:28,992 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-12-02 08:50:28,992 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 08:50:28,992 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 >= 0] [2024-12-02 08:50:29,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-12-02 08:50:29,002 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-12-02 08:50:29,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:29,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:50:29,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:29,067 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:50:29,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:29,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:50:29,106 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2024-12-02 08:50:29,107 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2024-12-02 08:50:29,164 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 29 states and 36 transitions. Complement of second has 10 states. [2024-12-02 08:50:29,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2024-12-02 08:50:29,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2024-12-02 08:50:29,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2024-12-02 08:50:29,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 6 letters. Loop has 3 letters. [2024-12-02 08:50:29,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:50:29,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2024-12-02 08:50:29,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:50:29,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 6 letters. Loop has 6 letters. [2024-12-02 08:50:29,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:50:29,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2024-12-02 08:50:29,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 08:50:29,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 20 states and 25 transitions. [2024-12-02 08:50:29,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-12-02 08:50:29,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-12-02 08:50:29,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2024-12-02 08:50:29,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:50:29,168 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-12-02 08:50:29,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2024-12-02 08:50:29,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 12. [2024-12-02 08:50:29,169 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) [2024-12-02 08:50:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2024-12-02 08:50:29,169 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-12-02 08:50:29,169 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-12-02 08:50:29,170 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 08:50:29,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2024-12-02 08:50:29,170 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 08:50:29,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:50:29,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:50:29,170 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-12-02 08:50:29,171 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 08:50:29,171 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0;" "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "assume !(0 == main_~x~0#1);" "assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1;" "main_~c~0#1 := 1 + main_~c~0#1;" "assume !(0 == main_~x~0#1);" "assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1;" "main_~c~0#1 := 1 + main_~c~0#1;" [2024-12-02 08:50:29,171 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~x~0#1);" "assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1;" "main_~c~0#1 := 1 + main_~c~0#1;" [2024-12-02 08:50:29,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:29,171 INFO L85 PathProgramCache]: Analyzing trace with hash -530204732, now seen corresponding path program 2 times [2024-12-02 08:50:29,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:50:29,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924564274] [2024-12-02 08:50:29,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:29,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:29,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:50:29,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924564274] [2024-12-02 08:50:29,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924564274] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:50:29,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080388345] [2024-12-02 08:50:29,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:29,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:50:29,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:29,227 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:50:29,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-12-02 08:50:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:29,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:50:29,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:29,265 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:50:29,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080388345] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:50:29,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:50:29,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-12-02 08:50:29,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631718969] [2024-12-02 08:50:29,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:50:29,279 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 08:50:29,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:29,279 INFO L85 PathProgramCache]: Analyzing trace with hash 40972, now seen corresponding path program 3 times [2024-12-02 08:50:29,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:50:29,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035893570] [2024-12-02 08:50:29,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:29,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:29,283 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:50:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:50:29,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:50:29,311 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:50:29,311 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:50:29,311 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:50:29,311 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:50:29,311 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:50:29,312 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:29,312 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:50:29,312 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:50:29,312 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration4_Loop [2024-12-02 08:50:29,312 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:50:29,312 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:50:29,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:29,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:29,322 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:29,324 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:50:29,367 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:50:29,367 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:50:29,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:29,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:29,369 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:29,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-12-02 08:50:29,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:29,372 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:29,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-12-02 08:50:29,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:29,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:29,393 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:29,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-12-02 08:50:29,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:50:29,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:29,429 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:29,429 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~y~0#1=-5} Honda state: {ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~y~0#1=-5} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [12, 1, 9] Nus: [0, 0] [2024-12-02 08:50:29,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-12-02 08:50:29,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:29,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:29,437 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:29,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-12-02 08:50:29,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:29,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:29,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-12-02 08:50:29,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:29,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:29,458 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:29,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-12-02 08:50:29,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:50:29,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:29,491 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:29,491 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=-4}] Lambdas: [1, 5, 1] Nus: [0, 1] [2024-12-02 08:50:29,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-12-02 08:50:29,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:29,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:29,501 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:29,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-12-02 08:50:29,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:29,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:29,521 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:29,521 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:50:29,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-12-02 08:50:29,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:50:29,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:29,530 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:50:29,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-12-02 08:50:29,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:50:29,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:50:29,553 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:50:29,553 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:50:29,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-12-02 08:50:29,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:50:29,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:50:29,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:50:29,561 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-12-02 08:50:29,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:29,585 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2024-12-02 08:50:29,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2024-12-02 08:50:29,586 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 08:50:29,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2024-12-02 08:50:29,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 08:50:29,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 08:50:29,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 08:50:29,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 08:50:29,586 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:50:29,586 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:50:29,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:50:29,588 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:50:29,588 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 08:50:29,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-12-02 08:50:29,588 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 08:50:29,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-12-02 08:50:29,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-12-02 08:50:29,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 08:50:29 BoogieIcfgContainer [2024-12-02 08:50:29,596 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 08:50:29,596 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:50:29,596 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:50:29,597 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:50:29,597 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:50:26" (3/4) ... [2024-12-02 08:50:29,599 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 08:50:29,600 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:50:29,601 INFO L158 Benchmark]: Toolchain (without parser) took 3824.05ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 87.0MB in the end (delta: 5.8MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-12-02 08:50:29,601 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 72.9MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:50:29,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.34ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 82.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:50:29,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.05ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.7MB in the end (delta: 771.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:50:29,601 INFO L158 Benchmark]: Boogie Preprocessor took 24.15ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:50:29,602 INFO L158 Benchmark]: RCFGBuilder took 189.16ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 72.3MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:50:29,602 INFO L158 Benchmark]: BuchiAutomizer took 3399.71ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 87.0MB in the end (delta: -15.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:50:29,602 INFO L158 Benchmark]: Witness Printer took 3.54ms. Allocated memory is still 117.4MB. Free memory was 87.0MB in the beginning and 87.0MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:50:29,604 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 72.9MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.34ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 82.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.05ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.7MB in the end (delta: 771.1kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.15ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 189.16ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 72.3MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3399.71ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 87.0MB in the end (delta: -15.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.54ms. Allocated memory is still 117.4MB. Free memory was 87.0MB in the beginning and 87.0MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) -1 * y) + x) and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 7 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 29 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax154 hnf100 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf95 smp100 dnf149 smp100 tf103 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 80ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 6 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-12-02 08:50:29,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-12-02 08:50:29,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820d0105-74da-4a3c-afaa-10082bed48e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE