./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu --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 979c09223b4f64932a9ecfe431c2618325c341ab74bc342cc8647dbf1f3b723f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:58,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:58,153 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:39:58,165 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:58,166 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:58,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:58,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:58,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:58,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:58,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:58,214 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:58,214 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:39:58,215 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:39:58,217 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:39:58,217 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:39:58,218 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:39:58,218 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:39:58,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:58,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:39:58,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:39:58,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:58,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:39:58,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:39:58,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:39:58,223 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:39:58,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:58,224 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:39:58,224 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:58,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:58,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:58,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:58,227 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:39:58,228 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:39:58,228 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 979c09223b4f64932a9ecfe431c2618325c341ab74bc342cc8647dbf1f3b723f [2023-11-19 07:39:58,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:58,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:58,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:58,555 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:58,556 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:58,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c [2023-11-19 07:40:01,877 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:40:02,122 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:40:02,122 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c [2023-11-19 07:40:02,129 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/data/addea2996/1743c421a59f470285914021debc0f4d/FLAG3dc99795a [2023-11-19 07:40:02,143 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/data/addea2996/1743c421a59f470285914021debc0f4d [2023-11-19 07:40:02,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:40:02,148 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:40:02,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:02,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:40:02,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:40:02,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d94455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02, skipping insertion in model container [2023-11-19 07:40:02,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,182 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:40:02,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:02,342 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:40:02,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:02,374 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:40:02,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02 WrapperNode [2023-11-19 07:40:02,374 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:02,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:02,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:40:02,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:40:02,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,409 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2023-11-19 07:40:02,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:02,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:40:02,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:40:02,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:40:02,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:40:02,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:40:02,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:40:02,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:40:02,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02" (1/1) ... [2023-11-19 07:40:02,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:02,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:02,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:02,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:40:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:40:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:40:02,642 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:40:02,645 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:40:02,793 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:40:02,802 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:40:02,802 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:40:02,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:02 BoogieIcfgContainer [2023-11-19 07:40:02,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:40:02,808 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:40:02,808 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:40:02,813 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:40:02,814 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:40:02,814 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:40:02" (1/3) ... [2023-11-19 07:40:02,816 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ae022b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:40:02, skipping insertion in model container [2023-11-19 07:40:02,816 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:40:02,816 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:02" (2/3) ... [2023-11-19 07:40:02,817 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ae022b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:40:02, skipping insertion in model container [2023-11-19 07:40:02,817 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:40:02,817 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:02" (3/3) ... [2023-11-19 07:40:02,819 INFO L332 chiAutomizerObserver]: Analyzing ICFG Toulouse-MultiBranchesToLoop-2.c [2023-11-19 07:40:02,907 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:40:02,908 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:40:02,908 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:40:02,908 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:40:02,909 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:40:02,909 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:40:02,911 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:40:02,911 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:40:02,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:02,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 07:40:02,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:02,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:02,943 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:02,943 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 07:40:02,944 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:40:02,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:02,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 07:40:02,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:02,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:02,947 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:02,948 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 07:40:02,957 INFO L748 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 17#L20true assume !!(-268435455 <= main_~y~0#1); 12#L21true assume !!(-268435455 <= main_~z~0#1);havoc main_#t~nondet2#1; 9#L22true assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := 1; 6#L22-2true assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 15#L27-1true assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 4#L32-1true assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 7#L37-1true assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 3#L42-1true assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 10#L47-1true assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 18#L52-1true assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 16#L57-1true assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 8#L67-1true [2023-11-19 07:40:02,957 INFO L750 eck$LassoCheckResult]: Loop: 8#L67-1true assume !!(main_~y~0#1 < 100 && main_~z~0#1 < 100);main_~y~0#1 := main_~y~0#1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - main_~x~0#1; 8#L67-1true [2023-11-19 07:40:02,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:02,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1202253379, now seen corresponding path program 1 times [2023-11-19 07:40:02,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:02,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466452090] [2023-11-19 07:40:02,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:02,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:03,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:03,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:03,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466452090] [2023-11-19 07:40:03,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466452090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:03,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:03,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:03,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410193713] [2023-11-19 07:40:03,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:03,198 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:40:03,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:03,199 INFO L85 PathProgramCache]: Analyzing trace with hash 105, now seen corresponding path program 1 times [2023-11-19 07:40:03,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:03,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252218462] [2023-11-19 07:40:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:03,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:03,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:03,230 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:03,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:03,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:03,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:03,331 INFO L87 Difference]: Start difference. First operand has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2023-11-19 07:40:03,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:03,414 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2023-11-19 07:40:03,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 41 transitions. [2023-11-19 07:40:03,418 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-11-19 07:40:03,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 23 states and 32 transitions. [2023-11-19 07:40:03,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2023-11-19 07:40:03,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2023-11-19 07:40:03,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 32 transitions. [2023-11-19 07:40:03,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:03,426 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 32 transitions. [2023-11-19 07:40:03,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 32 transitions. [2023-11-19 07:40:03,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2023-11-19 07:40:03,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 31 transitions. [2023-11-19 07:40:03,459 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 31 transitions. [2023-11-19 07:40:03,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:03,465 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2023-11-19 07:40:03,465 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:40:03,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 31 transitions. [2023-11-19 07:40:03,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 07:40:03,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:03,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:03,469 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:03,469 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 07:40:03,470 INFO L748 eck$LassoCheckResult]: Stem: 69#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 62#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 63#L20 assume !!(-268435455 <= main_~y~0#1); 68#L21 assume !!(-268435455 <= main_~z~0#1);havoc main_#t~nondet2#1; 65#L22 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~x~0#1 := -1; 66#L22-2 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 61#L27-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 58#L32-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 59#L37-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 56#L42-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 57#L47-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 67#L52-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 70#L57-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 64#L67-1 [2023-11-19 07:40:03,470 INFO L750 eck$LassoCheckResult]: Loop: 64#L67-1 assume !!(main_~y~0#1 < 100 && main_~z~0#1 < 100);main_~y~0#1 := main_~y~0#1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - main_~x~0#1; 64#L67-1 [2023-11-19 07:40:03,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:03,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1547022655, now seen corresponding path program 1 times [2023-11-19 07:40:03,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:03,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738909732] [2023-11-19 07:40:03,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:03,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:03,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:03,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738909732] [2023-11-19 07:40:03,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738909732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:03,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:03,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:03,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116157501] [2023-11-19 07:40:03,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:03,521 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:40:03,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:03,522 INFO L85 PathProgramCache]: Analyzing trace with hash 105, now seen corresponding path program 2 times [2023-11-19 07:40:03,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:03,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976079313] [2023-11-19 07:40:03,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:03,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:03,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:03,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:03,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:03,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:03,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:03,590 INFO L87 Difference]: Start difference. First operand 22 states and 31 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2023-11-19 07:40:03,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:03,662 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-11-19 07:40:03,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 24 transitions. [2023-11-19 07:40:03,663 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-11-19 07:40:03,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 24 transitions. [2023-11-19 07:40:03,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2023-11-19 07:40:03,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2023-11-19 07:40:03,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 24 transitions. [2023-11-19 07:40:03,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:03,665 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-11-19 07:40:03,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 24 transitions. [2023-11-19 07:40:03,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2023-11-19 07:40:03,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:03,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-11-19 07:40:03,669 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-11-19 07:40:03,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:03,672 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-11-19 07:40:03,673 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:40:03,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 23 transitions. [2023-11-19 07:40:03,675 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 07:40:03,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:03,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:03,676 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:03,676 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 07:40:03,677 INFO L748 eck$LassoCheckResult]: Stem: 121#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 111#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 112#L20 assume !!(-268435455 <= main_~y~0#1); 120#L21 assume !!(-268435455 <= main_~z~0#1);havoc main_#t~nondet2#1; 118#L22 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~x~0#1 := -1; 119#L22-2 assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 127#L27-1 assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 109#L32-1 assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 110#L37-1 assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 115#L42-1 assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 128#L47-1 assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 124#L52-1 assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 125#L57-1 assume !(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 116#L67-1 [2023-11-19 07:40:03,677 INFO L750 eck$LassoCheckResult]: Loop: 116#L67-1 assume !!(main_~y~0#1 < 100 && main_~z~0#1 < 100);main_~y~0#1 := main_~y~0#1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - main_~x~0#1; 116#L67-1 [2023-11-19 07:40:03,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:03,678 INFO L85 PathProgramCache]: Analyzing trace with hash -522195007, now seen corresponding path program 1 times [2023-11-19 07:40:03,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:03,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511501953] [2023-11-19 07:40:03,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:03,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:03,729 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:03,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:03,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:03,782 INFO L85 PathProgramCache]: Analyzing trace with hash 105, now seen corresponding path program 3 times [2023-11-19 07:40:03,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:03,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428058199] [2023-11-19 07:40:03,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:03,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:03,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:03,794 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:03,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:03,796 INFO L85 PathProgramCache]: Analyzing trace with hash 991824041, now seen corresponding path program 1 times [2023-11-19 07:40:03,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:03,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362216821] [2023-11-19 07:40:03,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:03,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:03,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:03,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:04,073 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:04,073 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:04,073 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:04,074 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:04,074 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:40:04,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:04,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:04,074 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:04,074 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration3_Lasso [2023-11-19 07:40:04,074 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:04,075 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:04,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,102 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,118 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,124 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,130 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,226 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:04,227 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:40:04,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:04,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:04,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:04,235 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:04,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:04,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:40:04,268 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:04,268 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:40:04,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:04,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:04,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:04,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:04,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:40:04,286 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:04,286 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:04,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-19 07:40:04,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:04,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:04,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:04,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:04,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:04,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:40:04,380 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:40:04,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:04,394 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:04,395 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:04,395 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:04,395 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:04,395 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:40:04,395 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:04,395 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:04,395 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:04,395 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration3_Lasso [2023-11-19 07:40:04,395 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:04,396 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:04,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,429 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,433 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:04,506 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:04,511 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:40:04,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:04,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:04,514 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:04,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:40:04,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:40:04,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:04,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:04,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:04,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:04,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:40:04,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:40:04,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:04,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:04,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:04,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:04,584 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:04,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:40:04,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:40:04,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:04,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:04,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:04,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:04,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:04,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:04,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:04,618 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:04,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:04,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:04,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:04,643 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:04,650 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:40:04,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:40:04,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:04,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:04,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:04,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:04,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:40:04,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:40:04,694 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:40:04,739 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-11-19 07:40:04,739 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 8 variables to zero. [2023-11-19 07:40:04,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:04,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:04,787 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:04,798 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:40:04,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:40:04,839 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-19 07:40:04,839 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:40:04,840 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = -1*ULTIMATE.start_main_~z~0#1 + 100 Supporting invariants [-1*ULTIMATE.start_main_~x~0#1 - 2 >= 0] [2023-11-19 07:40:04,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:04,875 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-19 07:40:04,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:04,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:40:04,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:05,180 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:40:05,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:05,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:05,187 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.9 stem predicates 1 loop predicates [2023-11-19 07:40:05,189 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 23 transitions. cyclomatic complexity: 2 Second operand has 10 states, 10 states have (on average 1.4) 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) [2023-11-19 07:40:05,398 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 23 transitions. cyclomatic complexity: 2. Second operand has 10 states, 10 states have (on average 1.4) 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) Result 24 states and 25 transitions. Complement of second has 10 states. [2023-11-19 07:40:05,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 9 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-19 07:40:05,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) 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) [2023-11-19 07:40:05,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 24 transitions. [2023-11-19 07:40:05,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 24 transitions. Stem has 13 letters. Loop has 1 letters. [2023-11-19 07:40:05,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:05,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 24 transitions. Stem has 14 letters. Loop has 1 letters. [2023-11-19 07:40:05,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:05,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 24 transitions. Stem has 13 letters. Loop has 2 letters. [2023-11-19 07:40:05,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:05,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 25 transitions. [2023-11-19 07:40:05,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 07:40:05,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 14 states and 14 transitions. [2023-11-19 07:40:05,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-11-19 07:40:05,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-19 07:40:05,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 14 transitions. [2023-11-19 07:40:05,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:05,407 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-19 07:40:05,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 14 transitions. [2023-11-19 07:40:05,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-19 07:40:05,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.0) internal successors, (14), 13 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) [2023-11-19 07:40:05,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-19 07:40:05,409 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-19 07:40:05,409 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-19 07:40:05,409 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:40:05,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 14 transitions. [2023-11-19 07:40:05,410 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 07:40:05,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:05,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:05,410 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:05,410 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 07:40:05,411 INFO L748 eck$LassoCheckResult]: Stem: 254#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 246#L-1 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_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 247#L20 assume !!(-268435455 <= main_~y~0#1); 253#L21 assume !!(-268435455 <= main_~z~0#1);havoc main_#t~nondet2#1; 252#L22 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := 1; 248#L22-2 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 249#L27-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 244#L32-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 245#L37-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 242#L42-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 243#L47-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 251#L52-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 255#L57-1 assume main_~x~0#1 > 0;main_~x~0#1 := 1 + main_~x~0#1; 250#L67-1 [2023-11-19 07:40:05,411 INFO L750 eck$LassoCheckResult]: Loop: 250#L67-1 assume !!(main_~y~0#1 < 100 && main_~z~0#1 < 100);main_~y~0#1 := main_~y~0#1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - main_~x~0#1; 250#L67-1 [2023-11-19 07:40:05,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:05,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2067886271, now seen corresponding path program 1 times [2023-11-19 07:40:05,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:05,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371784568] [2023-11-19 07:40:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:05,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:05,432 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:05,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:05,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:05,479 INFO L85 PathProgramCache]: Analyzing trace with hash 105, now seen corresponding path program 4 times [2023-11-19 07:40:05,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:05,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460313365] [2023-11-19 07:40:05,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:05,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:05,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:05,488 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:05,499 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:05,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:05,502 INFO L85 PathProgramCache]: Analyzing trace with hash -320034965, now seen corresponding path program 1 times [2023-11-19 07:40:05,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:05,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79101428] [2023-11-19 07:40:05,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:05,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:05,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:05,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:05,713 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:05,713 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:05,713 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:05,714 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:05,714 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:40:05,714 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:05,714 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:05,714 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:05,714 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration4_Lasso [2023-11-19 07:40:05,714 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:05,715 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:05,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:05,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:05,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:05,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:05,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:05,746 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:05,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:05,832 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:05,832 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:40:05,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:05,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:05,834 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:05,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:05,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:05,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:40:05,866 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:05,866 INFO L440 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: [] [2023-11-19 07:40:05,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:05,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:05,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:05,891 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:05,899 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:05,899 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:05,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:40:05,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:05,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:05,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:05,947 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:05,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:05,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:05,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:40:06,003 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:40:06,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:06,011 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:06,012 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:06,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:06,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:06,012 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:40:06,012 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:06,012 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:06,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:06,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration4_Lasso [2023-11-19 07:40:06,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:06,013 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:06,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:06,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:06,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:06,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:06,040 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:06,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:06,046 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:40:06,113 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:06,113 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:40:06,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:06,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:06,114 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:06,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:40:06,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:06,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:06,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:06,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:06,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:40:06,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:40:06,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:40:06,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:06,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:06,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:06,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:06,192 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:06,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:40:06,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:40:06,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:06,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:06,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:06,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:06,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:40:06,216 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:40:06,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:40:06,252 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-11-19 07:40:06,253 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 8 variables to zero. [2023-11-19 07:40:06,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:06,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:06,258 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:06,267 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:40:06,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:40:06,285 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-19 07:40:06,285 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:40:06,285 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 100 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 - 2 >= 0] [2023-11-19 07:40:06,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-19 07:40:06,310 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-19 07:40:06,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:06,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:40:06,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:06,545 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:40:06,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:06,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:06,546 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.8 stem predicates 1 loop predicates [2023-11-19 07:40:06,547 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 14 transitions. cyclomatic complexity: 1 Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2023-11-19 07:40:06,685 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 14 transitions. cyclomatic complexity: 1. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 15 transitions. Complement of second has 9 states. [2023-11-19 07:40:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 8 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-19 07:40:06,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2023-11-19 07:40:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2023-11-19 07:40:06,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 14 transitions. Stem has 13 letters. Loop has 1 letters. [2023-11-19 07:40:06,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:06,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 14 transitions. Stem has 14 letters. Loop has 1 letters. [2023-11-19 07:40:06,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:06,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 14 transitions. Stem has 13 letters. Loop has 2 letters. [2023-11-19 07:40:06,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:06,689 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 15 transitions. [2023-11-19 07:40:06,689 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:40:06,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2023-11-19 07:40:06,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:40:06,690 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:40:06,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:40:06,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:06,690 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:40:06,690 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:40:06,691 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:40:06,691 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:40:06,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:40:06,691 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:40:06,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:40:06,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:40:06 BoogieIcfgContainer [2023-11-19 07:40:06,700 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:40:06,700 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:40:06,700 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:40:06,701 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:40:06,701 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:02" (3/4) ... [2023-11-19 07:40:06,703 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:40:06,705 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:40:06,706 INFO L158 Benchmark]: Toolchain (without parser) took 4557.70ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 138.0MB in the beginning and 129.6MB in the end (delta: 8.4MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2023-11-19 07:40:06,706 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 113.2MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:06,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.58ms. Allocated memory is still 167.8MB. Free memory was 138.0MB in the beginning and 128.2MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:40:06,707 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.08ms. Allocated memory is still 167.8MB. Free memory was 128.2MB in the beginning and 126.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:40:06,708 INFO L158 Benchmark]: Boogie Preprocessor took 45.68ms. Allocated memory is still 167.8MB. Free memory was 126.5MB in the beginning and 125.6MB in the end (delta: 927.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:06,708 INFO L158 Benchmark]: RCFGBuilder took 349.84ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 115.2MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:40:06,709 INFO L158 Benchmark]: BuchiAutomizer took 3891.85ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 114.8MB in the beginning and 129.6MB in the end (delta: -14.8MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2023-11-19 07:40:06,710 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 218.1MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:06,712 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 113.2MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.58ms. Allocated memory is still 167.8MB. Free memory was 138.0MB in the beginning and 128.2MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.08ms. Allocated memory is still 167.8MB. Free memory was 128.2MB in the beginning and 126.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.68ms. Allocated memory is still 167.8MB. Free memory was 126.5MB in the beginning and 125.6MB in the end (delta: 927.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 349.84ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 115.2MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3891.85ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 114.8MB in the beginning and 129.6MB in the end (delta: -14.8MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 218.1MB. Free memory is still 129.6MB. 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 (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function ((-1 * z) + 100) and consists of 10 locations. One deterministic module has affine ranking function ((-1 * y) + 100) and consists of 9 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 147 IncrementalHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 57 mSDtfsCounter, 147 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax137 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 07:40:06,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:06,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d165a9-c3dc-40b9-9054-05a573392c04/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE